Lincoln Nautilus Manuals

Lincoln Nautilus: Rear View Mirrors / Rear View Mirrors. Diagnosis and Testing

DTC Chart: DDM

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

  DTC Description Action
B1163:11 Left Mirror Heater Output: Circuit Short To Ground   GO to Pinpoint Test D
B1163:15 Left Mirror Heater Output: Circuit Short To Battery Or Open   GO to Pinpoint Test D
B11F6:11 Driver Folding Mirror Motor: Circuit Short To Ground   GO to Pinpoint Test E
B11F6:15 Driver Folding Mirror Motor: Circuit Short To Battery or Open   GO to Pinpoint Test E
B1C09:11 Driver Left/Right Mirror Motor: Circuit Short To Ground   GO to Pinpoint Test B
B1C09:15 Driver Left/Right Mirror Motor: Circuit Short To Battery Or Open   GO to Pinpoint Test B
B1C10:11 Driver Up/Down Mirror Motor: Circuit Short To Ground   GO to Pinpoint Test B
B1C10:15 Driver Up/Down Mirror Motor: Circuit Short To Battery Or Open   GO to Pinpoint Test B
B1C13:11 Driver Up/Down Mirror Motor Feedback: Circuit Short To Ground   GO to Pinpoint Test C
B1C13:15 Driver Up/Down Mirror Motor Feedback: Circuit Short To Battery Or Open   GO to Pinpoint Test C
B1C14:11 Driver Left/Right Mirror Motor Feedback: Circuit Short To Ground   GO to Pinpoint Test C
B1C14:15 Driver Left/Right Mirror Motor Feedback: Circuit Short To Battery Or Open   GO to Pinpoint Test C
C1B15:11 Sensor Supply Voltage B: Circuit Short To Ground   GO to Pinpoint Test C
C1B15:15 Sensor Supply Voltage B: Circuit Short To Battery or Open   GO to Pinpoint Test C
All other DDM Diagnostic Trouble Codes (DTCs) -  
REFER to: Locks, Latches and Entry Systems (501-14 Handles, Locks, Latches and Entry Systems, Diagnosis and Testing).

DTC Chart: PDM

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

  DTC Description Action
B1164:11 Right Mirror Heater Output: Circuit Short To Ground   GO to Pinpoint Test D
B1164:15 Right Mirror Heater Output: Circuit Short To Battery Or Open   GO to Pinpoint Test D
B11F7:11 Passenger Folding Mirror Motor: Circuit Short To Ground   GO to Pinpoint Test E
B11F7:15 Passenger Folding Mirror Motor: Circuit Short To Battery or Open   GO to Pinpoint Test E
B1C11:11 Passenger Left/Right Mirror Motor: Circuit Short To Ground   GO to Pinpoint Test B
B1C11:15 Passenger Left/Right Mirror Motor: Circuit Short To Battery Or Open   GO to Pinpoint Test B
B1C12:11 Passenger Up/Down Mirror Motor: Circuit Short To Ground   GO to Pinpoint Test B
B1C12:15 Passenger Up/Down Mirror Motor: Circuit Short To Battery Or Open   GO to Pinpoint Test B
B1C15:11 Passenger Up/Down Mirror Motor Feedback: Circuit Short To Ground   GO to Pinpoint Test C
B1C15:15 Passenger Up/Down Mirror Motor Feedback: Circuit Short To Battery Or Open   GO to Pinpoint Test C
B1C16:11 Passenger Left/Right Mirror Motor Feedback: Circuit Short To Ground   GO to Pinpoint Test C
B1C16:15 Passenger Left/Right Mirror Motor Feedback: Circuit Short To Battery Or Open   GO to Pinpoint Test C
C1B15:11 Sensor Supply Voltage B: Circuit Short To Ground   GO to Pinpoint Test C
C1B15:15 Sensor Supply Voltage B: Circuit Short To Battery or Open   GO to Pinpoint Test C
All other PDM Diagnostic Trouble Codes (DTCs) -  
REFER to: Locks, Latches and Entry Systems (501-14 Handles, Locks, Latches and Entry Systems, Diagnosis and Testing).

DTC Chart: IPMA

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

  DTC Description Action
B1286:14 Interior Mirror: Circuit Short To Ground or Open   GO to Pinpoint Test G
All other IPMA Diagnostic Trouble Codes (DTCs) -  
REFER to: Lane Keeping System (419-07 Lane Keeping System, Diagnosis and Testing).

DTC Chart: FCIM

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

  DTC Description Action
B1C83:12 Rear Defog Relay: Circuit Short to Battery See DTC Chart: FCIM .
REFER to: Glass, Frames and Mechanisms (501-11 Glass, Frames and Mechanisms, Diagnosis and Testing).
B1C83:14 Rear Defog Relay: Circuit Short To Ground or Open
All other FCIM Diagnostic Trouble Codes (DTCs) -   Refer to the appropriate section in Group 415 for the procedure.

Symptom Chart(s)

Symptom Chart: Rear View Mirrors - Exterior

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

NOTE: Clean the entire mirror assembly and glass to assist in verification of the customer concern and/or impact damage. Do not clean any mirror glass or housing with an ice scraper, razor blade, abrasive pad, harsh chemicals or petroleum based cleaning products, as these may damage the mirror glass and/or housing.

Condition Possible Causes Action
One or both exterior mirrors fold inward due to wind pressure
  • Power folding mirrors are not synchronized
  • Mirror structural bracket is damaged
  • SYNCHRONIZE the power folding mirrors.
    REFER to: Power Mirrors Synchronization (501-09 Rear View Mirrors, General Procedures).
    • If the concern is still present after the power folding mirrors synchronization procedure was performed, INSPECT the mirror for structural damage. If necessary, INSTALL a new mirror.
      REFER to: Exterior Mirror (501-09 Rear View Mirrors, Removal and Installation).
Both exterior mirrors are inoperative
  • Wiring, terminals or connectors
  • Power window concern
  • Exterior mirror control switch (integral to the driver door window control switch)
  • DDM
  • VERIFY that all power windows can be operated normally from the driver door window control switch.
    • If all power windows operate normally from the driver door window control switch, INSTALL a new driver door window control switch.
      REFER to: Driver Door Window Control Switch (501-11 Glass, Frames and Mechanisms, Removal and Installation).
    • If the concern is the same after installing a new driver door window control switch, INSTALL a new DDM .
      REFER to: Driver Door Module (DDM) (419-10 Multifunction Electronic Modules, Removal and Installation).
    • If all power windows do not operate normally from the driver door window control switch, DIAGNOSE the power windows before continuing diagnostics for the exterior mirrors.
      REFER to: Glass, Frames and Mechanisms (501-11 Glass, Frames and Mechanisms, Diagnosis and Testing).
A single mirror is inoperative Refer to the Pinpoint Test   GO to Pinpoint Test A
A single exterior mirror does not function correctly in all directions Refer to the Pinpoint Test   GO to Pinpoint Test B
The mirrors make unexpected movements without exterior mirror control switch input
  • Memory position not set
  • Memory position changed
  • Make sure the memory positions are set.
  • Make sure customer is using the intended RKE transmitter. Each RKE transmitter is tied to it's own memory position when programmed.
The exterior mirror memory recall feature is inoperative/does not operate correctly Refer to the Pinpoint Test   GO to Pinpoint Test C
A single heated exterior mirror is inoperative or always on Refer to the Pinpoint Test   GO to Pinpoint Test D
Both heated exterior mirrors are inoperative
  • Fuse
  • Wiring, terminals or connectors
  • Rear window defrost relay
  • FCIM
DIAGNOSE the rear window defrost system. See Symptom Chart: The defrost system is inoperative.
REFER to: Glass, Frames and Mechanisms (501-11 Glass, Frames and Mechanisms, Diagnosis and Testing).
The LH and RH heated exterior mirrors do not defrost at the same rate Normal operation of the heated exterior mirror No action required, the system is operating correctly at this time.
The heated exterior mirrors do not operate from the voice command only
  • Defrost system concern
  • Voice recognition system concern
  • VERIFY the heated exterior mirrors operation using the FCIM defrost button.
    • If the heated exterior mirrors are inoperative, DIAGNOSE the rear window defrost system. See Symptom Chart: The defrost system is inoperative.
      REFER to: Glass, Frames and Mechanisms (501-11 Glass, Frames and Mechanisms, Diagnosis and Testing).
    • If the heated exterior mirrors operate, DIAGNOSE the inoperative voice recognition system. See the Symptom Chart: SYNC® System. Voice recognition is inoperative or does not operate correctly. Refer to the appropriate section in Group 415 for the procedure.
The heated exterior mirrors do not operate from the touchscreen command only
  • Defrost system concern
  • APIM
  • FDIM
  • VERIFY the heated exterior mirrors operation using the FCIM defrost button.
    • If the heated exterior mirrors are inoperative, DIAGNOSE the rear window defrost system. See Symptom Chart: The defrost system is inoperative.
      REFER to: Glass, Frames and Mechanisms (501-11 Glass, Frames and Mechanisms, Diagnosis and Testing).
    • If the heated exterior mirrors operate, DIAGNOSE the inoperative touchscreen system. See the Symptom Chart: General Audio System. The FDIM touchscreen is inoperative or does not operate correctly. Refer to the appropriate section in Group 415 for the procedure.
The LH and/or RH power folding mirror is inoperative/does not operate correctly Refer to the Pinpoint Test   GO to Pinpoint Test E
The LH and/or RH automatic power folding mirror is inoperative (power folding mirrors can be activated manually using the exterior mirror fold switch) Refer to the Pinpoint Test   GO to Pinpoint Test F
The LH and RH power folding mirror do not fold and/or unfold at the same rate of speed Normal operation of the power folding mirror No action required, the system is operating correctly at this time.
The LH auto-dimming exterior mirror is inoperative or always in a darkened state Refer to the Pinpoint Test   GO to Pinpoint Test G
An exterior mirror selection switch LED is inoperative (exterior mirror selection switch functions normally) Exterior mirror selection switch INSTALL a new driver door window control switch.
REFER to: Driver Door Window Control Switch (501-11 Glass, Frames and Mechanisms, Removal and Installation).
The exterior mirror welcome mat lamp is inoperative or always on
  • Wiring, terminals or connectors
  • Welcome mat lamp
  • Exterior mirror
  • Door module
See Symptom Chart: Interior Lighting.
REFER to: Interior Lighting (417-02 Interior Lighting, Diagnosis and Testing).
The exterior mirror turn signal is inoperative or always on
  • Wiring, terminals or connectors
  • Bulb
  • BCM
  • Door module
See Symptom Chart: Turn Signal and Hazard Lamps.
REFER to: Turn Signal and Hazard Lamps (417-01 Exterior Lighting, Diagnosis and Testing).
The exterior mirror parking aid camera is inoperative
  • Wiring, terminals or connectors
  • Parking aid camera
  • Exterior mirror
  • IPMB
See Symptom Chart: 360 Degree View Camera.
REFER to: Parking Aid (413-13B Parking Aid - Vehicles With: Parking Aid Camera, Diagnosis and Testing).
The BLIS ®/ CTA indicator is inoperative or always on
  • Wiring, terminals or connectors
  • Communication concern
  • Exterior mirror glass
  • Side obstacle detection control module
  • Door module
See Symptom Chart - BLIS and/or Symptom Chart - CTA .
REFER to: Blind Spot Information System (419-04 Side and Rear Vision, Diagnosis and Testing).

Symptom Chart: Rear View Mirrors - Interior

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

NOTE: Clean the entire mirror assembly and glass to assist in verification of the customer concern and/or impact damage. Do not clean any mirror glass or housing with an ice scraper, razor blade, abrasive pad, harsh chemicals or petroleum based cleaning products, as these may damage the mirror glass and/or housing.

Condition Possible Causes Action
The interior mirror is blemished Interior mirror glass/housing is dirty

NOTE: Do not clean the housing or glass of any mirror with harsh abrasives, fuel or other petroleum-based cleaning products.

CLEAN the affected interior mirror surface
The interior mirror vibrates or is loose Interior mirror mounting loose If the mirror is still on the windshield, do not remove. ATTEMPT to fully seat the mirror first. If the mirror is still loose or vibrates, REMOVE and REINSTALL the mirror. If the condition still exists, INSTALL a new interior mirror.
REFER to: Interior Rear View Mirror (501-09 Rear View Mirrors, Removal and Installation).
The interior auto-dimming mirror does not operate correctly Refer to the Pinpoint Test   GO to Pinpoint Test H

Symptom Chart: Rear View Mirrors - Exterior Noise, Vibration and Harshness (NVH)

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

NOTE: Clean the entire mirror assembly and glass to assist in verification of the customer concern and/or impact damage. Do not clean any mirror glass or housing with an ice scraper, razor blade, abrasive pad, harsh chemicals or petroleum based cleaning products, as these may damage the mirror glass and/or housing.

Condition Possible Causes Action
Exterior mirror housing vibrates or is loose
  • Power folding mirrors are not synchronized
SYNCHRONIZE the power folding mirrors.
REFER to: Power Mirrors Synchronization (501-09 Rear View Mirrors, General Procedures).
  • Exterior mirror mounting nuts loose
TIGHTEN the exterior mirror mounting nuts.
REFER to: Exterior Mirror (501-09 Rear View Mirrors, Removal and Installation).
  • Aftermarket air deflector/stone shields
If possible, REMOVE the aftermarket parts and ROAD TEST the vehicle. If the concern is no longer present, ADVISE the customer that the aftermarket components were causing the undesired vibration.
Exterior mirror glass vibrates or is loose
  • Exterior mirror motor mounting screws loose
  • Exterior mirror glass loose
PRESS the center of the exterior mirror glass up, down, left and right to make sure the exterior mirror glass is seated correctly. If the exterior mirror glass is still loose, REMOVE the exterior mirror glass. INSPECT the exterior mirror backing plate for damage. INSPECT the exterior mirror motor mounting screws and TIGHTEN if necessary. If the exterior mirror backing plate is damaged, INSTALL a new exterior mirror glass.
REFER to: Exterior Mirror (501-09 Rear View Mirrors, Removal and Installation).
Wind noise Foam gasket between the exterior mirror housing and door is misaligned or damaged VERIFY the gasket is in good condition. If necessary, REPOSITION the gasket between the exterior mirror housing and the door. The foam gasket is not serviceable and if it cannot be repaired, INSTALL a new exterior mirror.
REFER to: Exterior Mirror (501-09 Rear View Mirrors, Removal and Installation).
Exterior mirror is not correctly fitted to the door VERIFY there are no gaps between the exterior mirror and the door. If necessary, LOOSEN the exterior mirror nuts and REPOSITION the exterior mirror as necessary.
REFER to: Exterior Mirror (501-09 Rear View Mirrors, Removal and Installation).
Exterior mirror impact damage INSPECT the exterior mirror to ensure that there is no damage to the housing or glass.

Pinpoint Tests


PINPOINT TEST A: A SINGLE MIRROR IS INOPERATIVE

NOTE: Clean the entire mirror assembly and glass to assist in verification of the customer concern and/or impact damage. Do not clean any mirror glass or housing with an ice scraper, razor blade, abrasive pad, harsh chemicals or petroleum based cleaning products, as these may damage the mirror glass and/or housing.


Refer to Wiring Diagrams Cell 124 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Rear View Mirrors - System Operation and Component Description (501-09 Rear View Mirrors, Description and Operation).

Possible Sources

  • Wiring, terminals or connectors
  • Power window concern
  • Exterior mirror control switch (integral to the driver door window control switch)
  • Exterior mirror motor
  • Exterior mirror

Visual Inspection and Pre-checks

  • Inspect the suspect exterior mirror for damage or obstructions.
  • Verify all of the power windows can be opened and closed normally using the driver door window control switch.
A1 CHECK THE DRIVER DOOR WINDOW CONTROL SWITCH
  • Ignition ON.
  • Operate all windows using the driver door window control switch.

Do all the power windows operate correctly?
Yes GO to A2
No DIAGNOSE the power windows before continuing diagnosis of the power folding mirrors.
REFER to: Glass, Frames and Mechanisms (501-11 Glass, Frames and Mechanisms, Diagnosis and Testing).

A2 CHECK THE EXTERIOR MIRROR CONTROL SWITCH PARAMETER IDENTIFICATIONS (PIDS)
  • Using a diagnostic scan tool, view the DDM Parameter Identifications (PIDs).
  • Using a diagnostic scan tool, view the following DDM mirror control switch Parameter Identifications (PIDs):
    • MIR_SELSW_L
    • MIR_SELSW_R
    • MIR_SW_DN
    • MIR_SW_UP
    • MIR_SW_L
    • MIR_SW_R
  • While monitoring the Parameter Identifications (PIDs), switch the mirror control switch to the left mirror and press each directional control switch.
  • While monitoring the Parameter Identifications (PIDs), switch the mirror control switch to the right mirror and press each directional control switch.

Do the Parameter Identifications (PIDs) agree with the mirror control switch presses?
Yes GO to A3
No INSTALL a new driver door window control switch.
REFER to: Driver Door Window Control Switch (501-11 Glass, Frames and Mechanisms, Removal and Installation).

A3 CHECK THE SUSPECT EXTERIOR MIRROR MOTOR COMMON CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Disconnect suspect exterior mirror C517 (LH concern) or C615 (RH concern).
  • Disconnect DDM C501B (LH concern) or PDM C652B (RH concern).
  • Measure:
    Click to display connectors

      LH


    Positive Lead Measurement / Action Negative Lead
      C501B-17   C517-11

    Click to display connectors

      RH


    Positive Lead Measurement / Action Negative Lead
      C652B-17   C615-11

Is the resistance less than 3 ohms?
Yes GO to A4
No REPAIR the circuit.

A4 CHECK THE EXTERIOR MIRROR JUMPER HARNESS
  • Inspect the exterior mirror jumper harness between the vehicle harness and the mirror motors for:
    • Open or short circuits
    • Damaged or pushed out pins
    • Corrosion

Is the harness OK?
Yes INSTALL a new exterior mirror motor for the one in question.
REFER to: Exterior Mirror (501-09 Rear View Mirrors, Removal and Installation).
No REPAIR the harness as necessary. If the harness cannot be repaired, INSTALL a new exterior mirror.
REFER to: Exterior Mirror (501-09 Rear View Mirrors, Removal and Installation).

PINPOINT TEST B: A SINGLE EXTERIOR MIRROR DOES NOT FUNCTION CORRECTLY IN ALL DIRECTIONS

NOTE: Clean the entire mirror assembly and glass to assist in verification of the customer concern and/or impact damage. Do not clean any mirror glass or housing with an ice scraper, razor blade, abrasive pad, harsh chemicals or petroleum based cleaning products, as these may damage the mirror glass and/or housing.


Refer to Wiring Diagrams Cell 124 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Rear View Mirrors - System Operation and Component Description (501-09 Rear View Mirrors, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
DDM B1C09:11 Driver Left/Right Mirror Motor: Circuit Short To Ground A continuous and on-demand DTC that sets in the DDM if the DDM detects a higher than expected current draw when voltage is applied to the horizontal mirror motor circuit.
DDM B1C09:15 Driver Left/Right Mirror Motor: Circuit Short To Battery Or Open A continuous and on-demand DTC that sets in the DDM if the DDM detects a lower than expected current draw when voltage is applied to the horizontal mirror motor circuit.
DDM B1C10:11 Driver Up/Down Mirror Motor: Circuit Short To Ground A continuous and on-demand DTC that sets in the DDM if the DDM detects a higher than expected current draw when voltage is applied to the vertical mirror motor circuit.
DDM B1C10:15 Driver Up/Down Mirror Motor: Circuit Short To Battery Or Open A continuous and on-demand DTC that sets in the DDM if the DDM detects a lower than expected current draw when voltage is applied to the vertical mirror motor circuit.
PDM B1C11:11 Passenger Left/Right Mirror Motor: Circuit Short To Ground A continuous and on-demand DTC that sets in the PDM if the PDM detects a higher than expected current draw when voltage is applied to the horizontal mirror motor circuit.
PDM B1C11:15 Passenger Left/Right Mirror Motor: Circuit Short To Battery Or Open A continuous memory DTC that sets in the PDM if the PDM detects a lower than expected current draw when voltage is applied to the horizontal mirror motor circuit.
PDM B1C12:11 Passenger Up/Down Mirror Motor: Circuit Short To Ground A continuous memory DTC that sets in the PDM if the PDM detects a higher than expected current draw when voltage is applied to the vertical mirror motor circuit.
PDM B1C12:15 Passenger Up/Down Mirror Motor: Circuit Short To Battery Or Open A continuous and on-demand DTC that sets in the PDM if the PDM detects a lower than expected current draw when voltage is applied to the vertical mirror motor circuit.

Possible Sources

  • Wiring, terminals or connectors
  • Exterior mirror control switch (integral to the driver door window control switch)
  • Power mirror system concern
  • Exterior mirror motor
  • Exterior mirror
  • DDM
  • PDM

Visual Inspection and Pre-checks

  • Inspect the suspect exterior mirror for damage or obstructions.
B1 CHECK THE MIRROR MOVEMENT
  • Ignition ON.
  • Operate the suspect exterior mirror in the up, down, left and right directions.

Does the suspect exterior mirror operate in any direction?
Yes GO to B2
No GO to Pinpoint Test A

B2 CHECK THE EXTERIOR MIRROR CONTROL SWITCH PARAMETER IDENTIFICATIONS (PIDS)
  • Using a diagnostic scan tool, view the DDM Parameter Identifications (PIDs).
  • Using a diagnostic scan tool, view the following DDM mirror control switch Parameter Identifications (PIDs):
    • MIR_SELSW_L
    • MIR_SELSW_R
    • MIR_SW_DN
    • MIR_SW_UP
    • MIR_SW_L
    • MIR_SW_R
  • While monitoring the Parameter Identifications (PIDs), press the left mirror selection switch and press each directional control switch.
  • While monitoring the Parameter Identifications (PIDs), press the right mirror selection switch and press each directional control switch.

Do the Parameter Identifications (PIDs) agree with the mirror control switch presses?
Yes GO to B3
No INSTALL a new driver door window control switch.
REFER to: Driver Door Window Control Switch (501-11 Glass, Frames and Mechanisms, Removal and Installation).

B3 CHECK THE VOLTAGE OUTPUT TO THE SUSPECT EXTERIOR MIRROR

NOTICE: The following step uses a test lamp to simulate normal circuit loads. Use only a Rotunda Test Lamp (SGT27000) or 250-300mA incandescent bulb test lamp. To avoid connector terminal damage, use the Rotunda Flex Probe kit for the test lamp probe connection to the vehicle. Do not use the test lamp probe directly on any connector.

  • Ignition OFF.
  • Disconnect Disconnect: Suspect Exterior Mirror C517 (LH concern) or C615 (RH concern).
  • Ignition ON.
  • Select the suspect exterior mirror by pressing the appropriate exterior mirror selection switch.
  • Connect:
    Click to display connectors

      LH


    Lead 1 Measurement / Action Lead 2
      C517-14   Ground
      C517-11   Ground

    Click to display connectors

      RH


    Lead 1 Measurement / Action Lead 2
      C615-14   Ground
      C615-11   Ground
  • Press the exterior mirror control switch in the left/right directions and monitor the test lamp.
  • Connect:
    Click to display connectors

      LH


    Lead 1 Measurement / Action Lead 2
      C517-5   Ground
      C517-11   Ground

    Click to display connectors

      RH


    Lead 1 Measurement / Action Lead 2
      C615-5   Ground
      C615-11   Ground
  • Press the exterior mirror control switch in the up/down directions and monitor the test lamp.

Does the test lamp illuminate only when the exterior mirror control switch is pressed in each direction?
Yes GO to B4
No GO to B5

B4 CHECK THE EXTERIOR MIRROR JUMPER HARNESS
  • Inspect the exterior mirror jumper harness between the vehicle harness and the mirror motors for:
    • Open or short circuits
    • Damaged or pushed out pins
    • Corrosion

Is the harness OK?
Yes INSTALL a new exterior mirror motor in question.
REFER to: Exterior Mirror (501-09 Rear View Mirrors, Removal and Installation).
No REPAIR the harness as necessary. If the harness cannot be repaired, INSTALL a new exterior mirror.
REFER to: Exterior Mirror (501-09 Rear View Mirrors, Removal and Installation).

B5 CHECK THE SUSPECT EXTERIOR MIRROR CIRCUITS FOR A SHORT TO VOLTAGE
  • Ignition OFF.
  • Disconnect DDM C501B (LH concern) or PDM C652B (RH concern).
  • Ignition ON.
  • Measure:
    Click to display connectors

      LH


    Positive Lead Measurement / Action Negative Lead
      C517-5   Ground
      C517-11   Ground
      C517-14   Ground

    Click to display connectors

      RH


    Positive Lead Measurement / Action Negative Lead
      C615-5   Ground
      C615-11   Ground
      C615-14   Ground

Is any voltage present?
Yes REPAIR the circuit in question.
No GO to B6

B6 CHECK THE SUSPECT EXTERIOR MIRROR CIRCUITS FOR A SHORT TO GROUND
  • Ignition OFF.
  • Measure:
    Click to display connectors

      LH


    Positive Lead Measurement / Action Negative Lead
      C517-5   Ground
      C517-11   Ground
      C517-14   Ground

    Click to display connectors

      RH


    Positive Lead Measurement / Action Negative Lead
      C615-5   Ground
      C615-11   Ground
      C615-14   Ground

Are the resistances greater than 10,000 ohms?
Yes GO to B7
No REPAIR the circuit in question.

B7 CHECK THE SUSPECT EXTERIOR MIRROR CIRCUITS FOR AN OPEN
  • Measure:
    Click to display connectors

      LH


    Positive Lead Measurement / Action Negative Lead
      C517-5   C501B-7
      C517-11   C501B-17
      C517-14   C501B-8

    Click to display connectors

      RH


    Positive Lead Measurement / Action Negative Lead
      C615-5   C652B-7
      C615-11   C652B-17
      C615-14   C652B-8

Are the resistances less than 3 ohms?
Yes GO to B8
No REPAIR the circuit in question.

B8 CHECK FOR CORRECT DDM (DRIVER DOOR MODULE) / PDM (PASSENGER DOOR MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all DDM / PDM connectors and related in-line connectors.
  • Repair:
    • corrosion (install new connector or terminals - clean module pins)
    • damaged or bent pins - install new terminals/pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the DDM / PDM connectors and related in-line connectors. Make sure they seat and latch correctly.
  • Operate the system to determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new DDM / PDM .
REFER to: Driver Door Module (DDM) (419-10 Multifunction Electronic Modules, Removal and Installation).
REFER to: Passenger Door Module (PDM) (419-10 Multifunction Electronic Modules, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.


NOTE: Clean the entire mirror assembly and glass to assist in verification of the customer concern and/or impact damage. Do not clean any mirror glass or housing with an ice scraper, razor blade, abrasive pad, harsh chemicals or petroleum based cleaning products, as these may damage the mirror glass and/or housing.


PINPOINT TEST C: THE EXTERIOR MIRROR MEMORY RECALL FEATURE IS INOPERATIVE/DOES NOT OPERATE CORRECTLY

NOTE: If the DDM or PDM detects a mirror motor feedback circuit fault, a timeout strategy disables the memory operations for 30 seconds to prevent system damage. After the 30 seconds timeout, normal operation resumes.


Refer to Wiring Diagrams Cell 124 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Rear View Mirrors - System Operation and Component Description (501-09 Rear View Mirrors, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
DDM B1C13:11 Driver Up/Down Mirror Motor Feedback: Circuit Short To Ground A continuous and on-demand DTC that sets in the DDM if the DDM detects a short to ground from the vertical position feedback circuit.
DDM B1C13:15 Driver Up/Down Mirror Motor Feedback: Circuit Short To Battery Or Open A continuous and on-demand DTC that sets in the DDM if the DDM detects a short to voltage or open from the vertical position feedback circuit.
DDM B1C14:11 Driver Left/Right Mirror Motor Feedback: Circuit Short To Ground A continuous and on-demand DTC that sets in the DDM if the DDM detects a short to ground from the horizontal position feedback circuit.
DDM B1C14:15 Driver Left/Right Mirror Motor Feedback: Circuit Short To Battery Or Open A continuous and on-demand DTC that sets in the DDM if the DDM detects a short to voltage or open from the horizontal position feedback circuit.
DDM C1B15:11 Sensor Supply Voltage B: Circuit Short To Ground A continuous and on-demand DTC that sets in the DDM if the DDM detects a short to ground from the exterior mirror position sensor voltage supply circuit.
DDM C1B15:15 Sensor Supply Voltage B: Circuit Short To Battery Or Open A continuous and on-demand DTC that sets in the DDM if the DDM detects a short to voltage or open from the exterior mirror position sensor voltage supply circuit.
PDM B1C15:11 Passenger Up/Down Mirror Motor Feedback: Circuit Short To Ground A continuous and on-demand DTC that sets in the PDM if the PDM detects a short to ground from the vertical position feedback circuit.
PDM B1C15:15 Passenger Up/Down Mirror Motor Feedback: Circuit Short To Battery Or Open A continuous and on-demand DTC that sets in the PDM if the PDM detects a short to voltage or open from the vertical position feedback circuit.
PDM B1C16:11 Passenger Left/Right Mirror Motor Feedback: Circuit Short To Ground A continuous and on-demand DTC that sets in the PDM if the PDM detects a short to ground from the horizontal position feedback circuit.
PDM B1C16:15 Passenger Left/Right Mirror Motor Feedback: Circuit Short To Battery Or Open A continuous and on-demand DTC that sets in the PDM if the PDM detects a short to voltage or open from the horizontal position feedback circuit.
PDM C1B15:11 Sensor Supply Voltage B: Circuit Short To Ground A continuous and on-demand DTC that sets in the PDM if the PDM detects a short to ground from the exterior mirror position sensor voltage supply circuit.
PDM C1B15:15 Sensor Supply Voltage B: Circuit Short To Battery Or Open A continuous and on-demand DTC that sets in the PDM if the PDM detects a short to voltage or open from the exterior mirror position sensor voltage supply circuit.

Possible Sources

  • Wiring, terminals or connectors
  • Memory seat system concern
  • Power mirror system concern
  • Exterior mirror motor
  • Exterior mirror
  • DDM
  • PDM
C1 CHECK THE MEMORY SEAT OPERATION
  • Ignition ON.
  • Check the operation of the memory seat recall function.

Does the memory seat recall function operate?
Yes GO to C2
No DIAGNOSE the memory seat system prior to continuing diagnostics for the exterior mirror memory recall feature.
REFER to: Front Seats (501-10A Front Seats, Diagnosis and Testing).

C2 CHECK THE POWER MIRRORS OPERATION
  • Check the operation of the of the up/down and left/right function of the suspect power mirrors.

Does the suspect mirror operate in all directions?
Yes GO to C3
No GO to Pinpoint Test B

C3 CHECK THE SUSPECT EXTERIOR MIRROR POSITION SENSOR CIRCUITS FOR A SHORT TO VOLTAGE
  • Ignition OFF.
  • Disconnect suspect exterior mirror C517 (LH concern) or C615 (RH concern).
  • Disconnect Disconnect: DDM C501B (LH concern) or PDM C652B (RH concern).
  • Ignition ON.
  • Measure:
    Click to display connectors

      LH


    Positive Lead Measurement / Action Negative Lead
      C517-7   Ground
      C517-9   Ground
      C517-12   Ground
      C517-13   Ground

    Click to display connectors

      RH


    Positive Lead Measurement / Action Negative Lead
      C615-7   Ground
      C615-9   Ground
      C615-12   Ground
      C615-13   Ground

Is any voltage present?
Yes REPAIR the circuit in question.
No GO to C4

C4 CHECK THE SUSPECT EXTERIOR MIRROR POSITION SENSOR CIRCUITS FOR A SHORT TO GROUND
  • Ignition OFF.
  • Measure:
    Click to display connectors

      LH


    Positive Lead Measurement / Action Negative Lead
      C517-7   Ground
      C517-9   Ground
      C517-12   Ground
      C517-13   Ground

    Click to display connectors

      RH


    Positive Lead Measurement / Action Negative Lead
      C615-7   Ground
      C615-9   Ground
      C615-12   Ground
      C615-13   Ground

Are the resistances greater than 10,000 ohms?
Yes GO to C5
No REPAIR the circuit in question.

C5 CHECK THE SUSPECT EXTERIOR MIRROR POSITION SENSOR CIRCUITS FOR AN OPEN
  • Measure:
    Click to display connectors

      LH


    Positive Lead Measurement / Action Negative Lead
      C517-7   C501B-5
      C517-9   C501B-15
      C517-12   C501B-16
      C517-13   C501B-6

    Click to display connectors

      RH


    Positive Lead Measurement / Action Negative Lead
      C615-7   C652B-5
      C615-9   C652B-15
      C615-12   C652B-16
      C615-13   C652B-6

Are the resistances less than 3 ohms?
Yes GO to C6
No REPAIR the circuit in question.

C6 CHECK THE EXTERIOR MIRROR JUMPER HARNESS
  • Inspect the exterior mirror jumper harness between the vehicle harness and the mirror motors for:
    • Open or short circuits
    • Damaged or pushed out pins
    • Corrosion

Is the harness OK?
Yes INSTALL a new exterior mirror motor.
REFER to: Exterior Mirror (501-09 Rear View Mirrors, Removal and Installation). TEST the system for normal operation. If the concern is still present, GO to C7
No REPAIR the harness as necessary. If the harness cannot be repaired, INSTALL a new exterior mirror.
REFER to: Exterior Mirror (501-09 Rear View Mirrors, Removal and Installation).

C7 CHECK FOR CORRECT DDM (DRIVER DOOR MODULE) / PDM (PASSENGER DOOR MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all DDM / PDM connectors and related in-line connectors.
  • Repair:
    • corrosion (install new connector or terminals - clean module pins)
    • damaged or bent pins - install new terminals/pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the DDM / PDM connectors and related in-line connectors. Make sure they seat and latch correctly.
  • Operate the system to determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new DDM / PDM .
REFER to: Driver Door Module (DDM) (419-10 Multifunction Electronic Modules, Removal and Installation).
REFER to: Passenger Door Module (PDM) (419-10 Multifunction Electronic Modules, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST D: A SINGLE HEATED EXTERIOR MIRROR IS INOPERATIVE OR ALWAYS ON

NOTE: Clean the entire mirror assembly and glass to assist in verification of the customer concern and/or impact damage. Do not clean any mirror glass or housing with an ice scraper, razor blade, abrasive pad, harsh chemicals or petroleum based cleaning products, as these may damage the mirror glass and/or housing.


Refer to Wiring Diagrams Cell 124 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Rear View Mirrors - System Operation and Component Description (501-09 Rear View Mirrors, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
DDM B1163:11 Left Mirror Heater Output: Circuit Short To Ground This continuous and on-demand DTC sets if the DDM detects a higher than expected current draw when voltage is applied to the LH exterior mirror heater circuit.
DDM B1163:15 Left Mirror Heater Output: Circuit Short To Battery Or Open This continuous and on-demand DTC sets if the DDM detects a lower than expected current draw when voltage is applied to the LH exterior mirror heater circuit.
DDM B1164:11 Right Mirror Heater Output: Circuit Short To Ground This continuous and on-demand DTC sets if the PDM detects a higher than expected current draw when voltage is applied to the RH exterior mirror heater circuit.
DDM B1164:15 Right Mirror Heater Output: Circuit Short To Battery Or Open This continuous and on-demand DTC sets if the PDM detects a lower than expected current draw when voltage is applied to the RH exterior mirror heater circuit.

Possible Sources

  • Wiring, terminals or connectors
  • Exterior mirror glass
  • Exterior mirror
  • Door module

Visual Inspection and Pre-checks

  • Inspect the suspect exterior mirror housing and glass for damage.
D1 CHECK THE DDM (DRIVER DOOR MODULE) OR PDM (PASSENGER DOOR MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Ignition ON.
  • Using a diagnostic scan tool, perform the DDM ( LH concern) or PDM ( RH concern) self-test.

Are any Diagnostic Trouble Codes (DTCs) present?
Yes • For DDM DTC B1163:11 or PDM DTC B1164:11, GO to D6
• For DDM DTC B1163:15 or PDM DTC B1164:15, GO to D2
• For all other DDM or PDM Diagnostic Trouble Codes (DTCs), REFER to the DDM or PDM DTC Chart in this section.
No GO to D2

D2 CHECK THE EXTERIOR MIRROR HEATER OUTPUT VOLTAGE AT THE EXTERIOR MIRROR

NOTICE: The following step uses a test lamp to simulate normal circuit loads. Use only a Rotunda Test Lamp (SGT27000) or 250-300mA incandescent bulb test lamp. To avoid connector terminal damage, use the Rotunda Flex Probe kit for the test lamp probe connection to the vehicle. Do not use the test lamp probe directly on any connector.

  • Ignition OFF.
  • Disconnect Exterior Mirror C517 (LH exterior mirror) or C615 (RH exterior mirror).
  • Start the engine.
  • Connect:
    Click to display connectors

      LH exterior mirror


    Lead 1 Measurement / Action Lead 2
      C517-2   C517-16

    Click to display connectors

      RH exterior mirror


    Lead 1 Measurement / Action Lead 2
      C615-2   C615-16
  • NOTE: The defrost system activates for 10 minutes With the engine running, activate the rear window defrost.

Does the test light illuminate only when the rear window defrost is activated?
Yes GO to D10
No • If the test light is illuminated at all times, GO to D3
• If the test light does not illuminate, GO to D4

D3 CHECK THE HEATER CIRCUIT FOR A SHORT TO VOLTAGE AT THE EXTERIOR MIRROR
  • Ignition OFF.
  • Disconnect DDM C501B (LH concern) or PDM C652B (RH concern).
  • Ignition ON.
  • Measure:
    Click to display connectors

      LH exterior mirror


    Positive Lead Measurement / Action Negative Lead
      C517-2   Ground

    Click to display connectors

      RH exterior mirror


    Positive Lead Measurement / Action Negative Lead
      C615-2   Ground

Is any voltage present?
Yes REPAIR the circuit.
No • For the LH mirror, GO to D8
• For the RH mirror, GO to D9

D4 CHECK FOR VOLTAGE TO THE HEATER CIRCUIT AT THE EXTERIOR MIRROR

NOTICE: The following step uses a test lamp to simulate normal circuit loads. Use only a Rotunda Test Lamp (SGT27000) or 250-300mA incandescent bulb test lamp. To avoid connector terminal damage, use the Rotunda Flex Probe kit for the test lamp probe connection to the vehicle. Do not use the test lamp probe directly on any connector.

  • Turn the rear window defrost off.
  • Connect:
    Click to display connectors

      LH exterior mirror


    Lead 1 Measurement / Action Lead 2
      C517-2   Ground

    Click to display connectors

      RH exterior mirror


    Lead 1 Measurement / Action Lead 2
      C615-2   Ground
  • NOTE: The defrost system activates for 10 minutes With the engine running, activate the rear window defrost.

Does the test light illuminate?
Yes REPAIR the ground circuit.
No GO to D5

D5 CHECK FOR AN OPEN IN THE HEATER CIRCUIT BETWEEN THE MIRROR AND THE DOOR MODULE
  • Ignition OFF.
  • Disconnect DDM C501B (LH concern) or PDM C652B (RH concern).
  • Measure:
    Click to display connectors

      LH exterior mirror


    Positive Lead Measurement / Action Negative Lead
      C517-2   C501B-20

    Click to display connectors

      RH exterior mirror


    Positive Lead Measurement / Action Negative Lead
      C615-2   C652B-20

Is the resistance less than 3 ohms?
Yes • For the LH mirror, GO to D8
• For the RH mirror, GO to D9
No REPAIR the affected circuit.

D6 CHECK THE DOOR MODULE DIAGNOSTIC TROUBLE CODES (DTCS) WITH THE EXTERIOR MIRROR DISCONNECTED
  • Ignition OFF.
  • Disconnect suspect exterior mirror C517 (LH concern) or C615 (RH concern).
  • Ignition ON.
  • Using a diagnostic scan tool, clear the DDM or PDM Diagnostic Trouble Codes (DTCs).
  • Using a diagnostic scan tool, perform the DDM or PDM self-test.

Is DDM DTC B1163:15 or PDM DTC B1164:15 present?
Yes • For a LH concern, GO to D8
• For a RH concern, GO to D9
No GO to D7

D7 CHECK THE HEATER CIRCUIT FOR A SHORT TO GROUND AT THE EXTERIOR MIRROR
  • Ignition OFF.
  • Disconnect DDM C501B (LH concern) or PDM C652B (RH concern).
  • Measure:
    Click to display connectors

      LH


    Positive Lead Measurement / Action Negative Lead
      C517-2   Ground

    Click to display connectors

      RH


    Positive Lead Measurement / Action Negative Lead
      C615-2   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to D10
No REPAIR the circuit.

D8 CHECK FOR CORRECT DDM (DRIVER DOOR MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all DDM connectors and related in-line connectors.
  • Repair:
    • corrosion (install new connector or terminals - clean module pins)
    • damaged or bent pins - install new terminals/pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the DDM connectors and related in-line connectors. Make sure they seat and latch correctly.
  • Operate the system to determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new DDM .
REFER to: Driver Door Module (DDM) (419-10 Multifunction Electronic Modules, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

D9 CHECK FOR CORRECT PDM (PASSENGER DOOR MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all PDM connectors and related in-line connectors.
  • Repair:
    • corrosion (install new connector or terminals - clean module pins)
    • damaged or bent pins - install new terminals/pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the PDM connectors and related in-line connectors. Make sure they seat and latch correctly.
  • Operate the system to determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new PDM .
REFER to: Passenger Door Module (PDM) (419-10 Multifunction Electronic Modules, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

D10 CHECK THE EXTERIOR MIRROR JUMPER HARNESS
  • Inspect the exterior mirror jumper harness between the vehicle harness and the mirror glass for:
    • Open or short circuits
    • Damaged or pushed out pins
    • Corrosion

Is the harness OK?
Yes INSTALL a new exterior mirror glass.
REFER to: Exterior Mirror (501-09 Rear View Mirrors, Removal and Installation).
No REPAIR the harness as necessary. If the harness cannot be repaired, INSTALL a new exterior mirror.
REFER to: Exterior Mirror (501-09 Rear View Mirrors, Removal and Installation).

PINPOINT TEST E: THE LH (LEFT-HAND) AND/OR RH (RIGHT-HAND) POWER FOLDING MIRROR IS INOPERATIVE/DOES NOT OPERATE CORRECTLY

NOTE: Clean the entire mirror assembly and glass to assist in verification of the customer concern and/or impact damage. Do not clean any mirror glass or housing with an ice scraper, razor blade, abrasive pad, harsh chemicals or petroleum based cleaning products, as these may damage the mirror glass and/or housing.


Refer to Wiring Diagrams Cell 124 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Rear View Mirrors - System Operation and Component Description (501-09 Rear View Mirrors, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
DDM B11F6:11 Driver Folding Mirror Motor: Circuit Short To Ground A continuous memory and on-demand DTC that sets in the DDM if the DDM detects a greater than expected current draw when voltage is applied to the LH exterior mirror fold in circuit.
DDM B11F6:15 Driver Folding Mirror Motor: Circuit Short To Battery Or Open A continuous memory and on-demand DTC that sets in the DDM if the DDM detects a lower than expected current draw when voltage is applied to the LH exterior mirror fold in circuit.
PDM B11F7:11 Passenger Folding Mirror Motor: Circuit Short To Ground A continuous memory and on-demand DTC that sets in the PDM if the PDM detects a greater than expected current draw when voltage is applied to the RH exterior mirror fold in circuit.
PDM B11F7:15 Passenger Folding Mirror Motor: Circuit Short To Battery Or Open A continuous memory and on-demand DTC that sets in the PDM if the PDM detects a lower than expected current draw when voltage is applied to the RH exterior mirror fold in circuit.

Possible Sources

  • Binding or obstructed power fold mirror
  • Power fold mirrors not synchronized
  • The power fold mirror motor lockout feature is active
  • Communication network concern
  • Wiring, terminals or connectors
  • Power window concern
  • Exterior mirror fold switch (integral to the driver door window control switch)
  • Power folding mirror
  • PDM
  • DDM

Visual Inspection and Pre-checks

  • Verify that the power folding mirrors are not binding or obstructed.
  • Verify the lockout feature is disabled.
  • Verify all of the power windows can be opened and closed normally using the driver door window control switch.
  • The power folding mirrors may need to be synchronized when one or both power folding mirrors are partially folded in toward the door manually, and then folded inward using the power folding mirror control switch.

NOTE: The power folding mirrors must be synchronized anytime the RH , LH or both power folding mirrors are folded or unfolded without using the automatic folding feature, folded or unfolded without using without using the power folding mirror control switch, or if a new power folding mirror has been installed. Refer to Power Mirrors Synchronization in this section.

NOTE: If the exterior mirrors are folded and unfolded several times consecutively, the power lockout feature disables the system for approximately 3-10 minutes to prevent damage to the power fold motors. After 3-10 minutes have elapsed, normal operation resumes.

E1 PERFORM A NETWORK TEST
  • Ignition ON.
  • Using a diagnostic scan tool, perform a network test.

Do the DDM and PDM pass the network test?
Yes GO to E2
No See the DDM and/or the PDM does not respond to the diagnostic scan tool.

E2 CHECK THE DOOR MODULE DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, perform the DDM and PDM self-test.

Are any DDM Diagnostic Trouble Codes (DTCs) or PDM Diagnostic Trouble Codes (DTCs) present?
Yes • For DDM DTC B11F6:11 or PDM DTC B11F7:11, GO to E5
• For DDM DTC B11F6:15 or PDM DTC B11F7:15, GO to E7
• For all other DDM or PDM Diagnostic Trouble Codes (DTCs), REFER to the DDM or PDM DTC Chart in this section.
No • If both power folding mirrors are inoperative, GO to E3
• If only one power folding mirror is inoperative, GO to E4

E3 CHECK THE DRIVER DOOR WINDOW CONTROL SWITCH
  • Operate all windows using the driver door window control switch.

Do all the power windows operate correctly?
Yes INSTALL a new driver door window control switch.
REFER to: Driver Door Window Control Switch (501-11 Glass, Frames and Mechanisms, Removal and Installation).
. If the concern is still present after switch replacement, GO to E11
No DIAGNOSE the power windows before continuing diagnostics of the power folding mirrors.
REFER to: Glass, Frames and Mechanisms (501-11 Glass, Frames and Mechanisms, Diagnosis and Testing).

E4 CHECK THE FOLD CIRCUIT FOR VOLTAGE AT THE SUSPECT EXTERIOR MIRROR

NOTICE: The following step uses a test lamp to simulate normal circuit loads. Use only a Rotunda Test Lamp (SGT27000) or 250-300mA incandescent bulb test lamp. To avoid connector terminal damage, use the Rotunda Flex Probe kit for the test lamp probe connection to the vehicle. Do not use the test lamp probe directly on any connector.

  • Ignition OFF.
  • Disconnect suspect exterior power folding mirror C517 (LH mirror) or C615 (RH mirror).
  • Connect:
    Click to display connectors

      LH power folding mirror concern


    Lead 1 Measurement / Action Lead 2
      C517-10   C517-6

    Click to display connectors

      RH power folding mirror concern


    Lead 1 Measurement / Action Lead 2
      C615-10   C615-6
  • Ignition ON.
  • Press the exterior mirror fold switch.

Does the test light illuminate when the exterior mirror fold switch is pressed?
Yes GO to E12
No • For a RH power folding mirror concern, GO to E10
• For a LH power folding mirror concern, GO to E11

E5 CHECK THE DOOR MODULE DIAGNOSTIC TROUBLE CODES (DTCS) WITH THE SUSPECT EXTERIOR MIRROR DISCONNECTED
  • Ignition OFF.
  • Disconnect suspect exterior power folding mirror C517 (LH mirror) or C615 (RH mirror).
  • Ignition ON.
  • Using a diagnostic scan tool, clear the DDM ( LH power folding mirror concern) or PDM ( RH power folding mirror concern) Diagnostic Trouble Codes (DTCs) and repeat the self-test.

Is DDM DTC B11F6:15 or PDM DTC B11F7:15 present?
Yes GO to E12
No GO to E6

E6 CHECK THE EXTERIOR MIRROR FOLD IN CIRCUIT FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect DDM C501B (LH power folding mirror concern) or PDM C652B (RH power folding mirror concern).
  • Measure:
    Click to display connectors

      LH power folding mirror concern


    Positive Lead Measurement / Action Negative Lead
      C501B-18   Ground

    Click to display connectors

      RH power folding mirror concern


    Positive Lead Measurement / Action Negative Lead
      C652B-18   Ground

Is the resistance greater than 10,000 ohms?
Yes • For a LH concern, GO to E11
• For a RH concern, GO to E10
No REPAIR the circuit.

E7 CHECK THE DOOR MODULE DIAGNOSTIC TROUBLE CODES (DTCS) WITH THE FOLD CIRCUITS JUMPERED TOGETHER
  • Ignition OFF.
  • Disconnect suspect exterior power folding mirror C517 (LH mirror) or C615 (RH mirror).
  • Connect:
    Click to display connectors

      LH power folding mirror concern


    Positive Lead Measurement / Action Negative Lead
      C517-10   C517-6

    Click to display connectors

      RH power folding mirror concern


    Positive Lead Measurement / Action Negative Lead
      C615-10   C615-6
  • Ignition ON.
  • Using a diagnostic scan tool, clear the DDM ( LH power folding mirror concern) or PDM ( RH power folding mirror concern) Diagnostic Trouble Codes (DTCs) and repeat the self-test.

Is DDM DTC B11F6:11 or PDM DTC B11F7:11 present?
Yes REMOVE the fused jumper wire. GO to E12
No REMOVE the fused jumper wire. GO to E8

E8 CHECK THE FOLD CIRCUITS FOR A SHORT TO VOLTAGE
  • Ignition OFF.
  • Disconnect DDM C501B (LH power folding mirror concern) or PDM C652B (RH power folding mirror concern).
  • Ignition ON.
  • Measure:
    Click to display connectors

      LH power folding mirror concern


    Positive Lead Measurement / Action Negative Lead
      C517-10   Ground
      C517-6   Ground

    Click to display connectors

      RH power folding mirror concern


    Positive Lead Measurement / Action Negative Lead
      C615-10   Ground
      C615-6   Ground

Is any voltage present?
Yes REPAIR the affected circuit.
No GO to E9

E9 CHECK THE FOLD CIRCUITS FOR AN OPEN
  • Ignition OFF.
  • Measure:
    Click to display connectors

      LH power folding mirror concern


    Positive Lead Measurement / Action Negative Lead
      C517-10   C501B-18
      C517-6   C501B-9

    Click to display connectors

      RH power folding mirror concern


    Positive Lead Measurement / Action Negative Lead
      C615-10   C652B-18
      C615-6   C652B-9

Are the resistances less than 3 ohms?
Yes • For a LH power folding mirror concern, GO to E11
• For a RH power folding mirror concern, GO to E10
No REPAIR the affected circuit.

E10 CHECK FOR CORRECT PDM (PASSENGER DOOR MODULE) OPERATION
  • Disconnect and inspect all PDM connectors and related in-line connectors.
  • Repair:
    • corrosion (install new connector or terminals - clean module pins)
    • damaged or bent pins - install new terminals/pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the PDM connectors and related in-line connectors. Make sure they seat and latch correctly.
  • Operate the system to determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new PDM .
REFER to: Passenger Door Module (PDM) (419-10 Multifunction Electronic Modules, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

E11 CHECK FOR CORRECT DDM (DRIVER DOOR MODULE) OPERATION
  • Disconnect and inspect all DDM connectors and related in-line connectors.
  • Repair:
    • corrosion (install new connector or terminals - clean module pins)
    • damaged or bent pins - install new terminals/pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the DDM connectors and related in-line connectors. Make sure they seat and latch correctly.
  • Operate the system to determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new DDM .
REFER to: Driver Door Module (DDM) (419-10 Multifunction Electronic Modules, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

E12 CHECK THE EXTERIOR MIRROR JUMPER HARNESS
  • Inspect the exterior mirror jumper harness between the vehicle harness and the mirror motors for:
    • Open or short circuits
    • Damaged or pushed out pins
    • Corrosion

Is the harness OK?
Yes INSTALL a new exterior mirror.
REFER to: Exterior Mirror (501-09 Rear View Mirrors, Removal and Installation).
No REPAIR the harness as necessary. If the harness cannot be repaired, INSTALL a new exterior mirror.
REFER to: Exterior Mirror (501-09 Rear View Mirrors, Removal and Installation).

PINPOINT TEST F: THE LH (LEFT-HAND) AND/OR RH (RIGHT-HAND) AUTOMATIC POWER FOLDING MIRROR FEATURE IS INOPERATIVE

Normal Operation and Fault Conditions

REFER to: Rear View Mirrors - System Operation and Component Description (501-09 Rear View Mirrors, Description and Operation).

Possible Sources

  • Communication network concern
  • GWM concern
  • PCM concern
  • IPC concern
  • BCM concern
  • DDM
  • PDM

Visual Inspection and Pre-checks

  • Verify the automatic power folding feature is turned on in the IPC message center.
F1 VERIFY BOTH POWER FOLDING MIRRORS CAN BE FOLDED AND UNFOLDED USING THE EXTERIOR MIRROR FOLD SWITCH
  • Ignition ON.
  • Using the exterior mirror fold switch, operate the power folding mirrors.

Do both mirrors fold and unfold using the switch?
Yes GO to F2
No GO to Pinpoint Test E

F2 PERFORM A NETWORK TEST
  • Using a diagnostic scan tool, perform a network test.

Do the DDM , PDM , IPC , BCM and GWM pass the network test?
Yes GO to F3
No See the Symptom Chart: Communication Network.

F3 PERFORM THE IPC (INSTRUMENT PANEL CLUSTER) SELF-TEST
  • Using a diagnostic scan tool, perform the IPC self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes See the DTC Chart: IPC .
REFER to: Instrumentation, Message Center and Warning Chimes (413-01 Instrumentation, Message Center and Warning Chimes, Diagnosis and Testing).
No GO to F4

F4 PERFORM THE BCM (BODY CONTROL MODULE) SELF-TEST
  • Using a diagnostic scan tool, perform the BCM self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes See the BCM DTC Chart.
REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Diagnosis and Testing).
No GO to F5

F5 CHECK THE PCM (POWERTRAIN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, perform the PCM self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes See Electronic Engine Control, PCM DTC Chart. Refer to the appropriate section in Group 303 for the procedure.
No GO to F6

F6 CHECK THE GWM (GATEWAY MODULE A) CONTINUOUS MEMORY DIAGNOSTIC TROUBLE CODES (CMDTCS)
  • Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (CMDTCs).

Are any Continuous Memory Diagnostic Trouble Codes (CMDTCs) present?
Yes See the GWM DTC Chart.
No GO to F7

F7 PERFORM THE DDM (DRIVER DOOR MODULE) SELF-TEST
  • Using a diagnostic scan tool, perform the DDM self-test.

Are any Diagnostic Trouble Codes (DTCs) present?
Yes REFER to the DDM DTC Chart in this section.
No GO to F8

F8 PERFORM THE PDM (PASSENGER DOOR MODULE) SELF-TEST
  • Using a diagnostic scan tool, perform the PDM self-test.

Are any Diagnostic Trouble Codes (DTCs) present?
Yes REFER to the PDM DTC Chart in this section.
No If only the RH exterior mirror is inoperative, GO to F10
If only the LH exterior mirror is inoperative, GO to F9
If both exterior mirrors are inoperative, GO to F9

F9 CHECK FOR CORRECT DDM (DRIVER DOOR MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all DDM connectors and related in-line connectors.
  • Repair:
    • corrosion (install new connector or terminals - clean module pins)
    • damaged or bent pins - install new terminals/pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the DDM connectors and related in-line connectors. Make sure they seat and latch correctly.
  • Operate the system to determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new DDM .
REFER to: Driver Door Module (DDM) (419-10 Multifunction Electronic Modules, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

F10 CHECK FOR CORRECT PDM (PASSENGER DOOR MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all PDM connectors and related in-line connectors.
  • Repair:
    • corrosion (install new connector or terminals - clean module pins)
    • damaged or bent pins - install new terminals/pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the PDM connectors and related in-line connectors. Make sure they seat and latch correctly.
  • Operate the system to determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new PDM .
REFER to: Passenger Door Module (PDM) (419-10 Multifunction Electronic Modules, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST G: THE LH (LEFT-HAND) EXTERIOR AUTO-DIMMING MIRROR IS INOPERATIVE OR ALWAYS IN A DARKENED STATE

Refer to Wiring Diagrams Cell 124 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Rear View Mirrors - System Operation and Component Description (501-09 Rear View Mirrors, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
IPMA B1286:14 Interior Mirror: Circuit Short To Ground Or Open A continuous memory DTC that sets in the IPMA when the IPMA detects a short to ground on the LH exterior auto-dimming mirror output circuit.

Possible Sources

  • Wiring, terminals or connectors
  • LH exterior mirror glass
  • LH exterior mirror
  • Interior auto-dimming rear view mirror concern
  • IPMA (integral to the interior auto-dimming rear view mirror) if equipped
G1 VERIFY THE INTERIOR AUTO-DIMMING REAR VIEW MIRROR FORWARD AND REARWARD FACING SENSORS ARE NOT BLOCKED
  • Visually verify the forward and rearward facing sensors are not blocked or obstructed. Sources of obstruction can include:
    • Stickers, window decals or tags.
    • Tool road or parking passes.
    • Fold-down screens for TVs or DVD players.
    • Non-OEM window tinting.
    • Dirt and debris.
    • Decorative objects hung from mirror.

Are either of the sensors blocked?
Yes If possible, REMOVE the obstruction. If it is not possible to remove the obstruction, ADVISE the customer the blockage affects the operation of the interior and LH exterior auto-dimming mirrors.
No GO to G2

G2 VERIFY THE OPERATION OF THE INTERIOR AUTO-DIMMING REAR VIEW MIRROR - DAYLIGHT CONDITIONS
  • Ignition ON.
  • Select PARK.
  • NOTE: Base electrochromatic mirror shown. IPMA mirror is similar. Use a bright lamp to illuminate the forward facing sensor and the rearward facing sensor. The mirror should adjust to a high reflectance state (mirror will be clear).

Did the interior auto-dimming rear view mirror adjust to a high reflectance (clear) state?
Yes GO to G3
No GO to Pinpoint Test H

G3 VERIFY THE OPERATION OF THE INTERIOR AUTO-DIMMING REAR VIEW MIRROR - NIGHTTIME CONDITIONS
  • NOTE: Covering the sensor(s) with a finger or hand is not adequate for this step. Cover the forward and rearward facing sensors with black electrical tape or other dark material. The mirror should adjust to a high reflectance state (mirror will be clear).

Did the interior auto-dimming rear view mirror adjust to a high reflectance (clear) state?
Yes GO to G4
No GO to Pinpoint Test H

G4 VERIFY THE OPERATION OF THE INTERIOR AUTO-DIMMING REAR VIEW MIRROR - NIGHTTIME CONDITIONS WITH GLARE
  • NOTE: Covering the sensor(s) with a finger or hand is not adequate for this step. Remove the black electrical tape or other dark material from the rearward facing sensor.
  • Use a bright light to illuminate the rearward facing sensor. The mirror should adjust to a lower reflectance state (mirror will be dark).

Did the interior auto-dimming rear view mirror adjust to a low reflectance (dark) state?
Yes GO to G5
No GO to Pinpoint Test H

G5 VERIFY THE OPERATION OF THE INTERIOR AUTO-DIMMING REAR VIEW MIRROR - VEHICLE IN REVERSE AND NIGHTTIME CONDITIONS WITH GLARE
  • NOTE: Covering the sensor(s) with a finger or hand is not adequate for this step. Continue to illuminate the rearward facing sensor with the forward facing sensor covered.
  • Select REVERSE.

Did the interior auto-dimming rear view mirror adjust to a high reflectance (clear) state after reverse was selected?
Yes • If the LH exterior auto-dimming rear view mirror is inoperative, GO to G6
• If the LH exterior auto-dimming rear view mirror is always in a low reflectance (dark) state, GO to G9
No GO to Pinpoint Test H

G6 CHECK FOR VOLTAGE AT THE LH (LEFT-HAND) EXTERIOR AUTO-DIMMING MIRROR WHILE SIMULATING NIGHTTIME CONDITIONS WITH GLARE
  • Select PARK.
  • Ignition OFF.
  • Disconnect LH Exterior Mirror C517 .
  • Ignition ON.
  • NOTE: Covering the sensor(s) with a finger or hand is not adequate for this step. Illuminate the rearward facing sensor with the forward facing sensor covered.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C517-15   C517-1

Is any voltage present?
Yes GO to G12
No GO to G7

G7 CHECK FOR AN OPEN BETWEEN THE LH (LEFT-HAND) EXTERIOR MIRROR AND THE INTERIOR AUTO-DIMMING MIRROR
  • Ignition OFF.
  • Disconnect Interior Auto-Dimming Rear View Mirror C9039 (without automatic wipers) or Interior Auto-Dimming Rear View Mirror C9012 (with automatic wipers).
  • Measure:
    Click to display connectors

      Without automatic wipers


    Positive Lead Measurement / Action Negative Lead
      C517-15   C9039-3
      C517-1   C9039-4

    Click to display connectors

      With automatic wipers


    Positive Lead Measurement / Action Negative Lead
      C517-15   C9012-5
      C517-1   C9012-4

Are the resistances less than 3 ohms?
Yes GO to G8
No REPAIR the affected circuit.

G8 CHECK THE LH (LEFT-HAND) EXTERIOR AUTO-DIMMING MIRROR CIRCUITS FOR A SHORT TOGETHER
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C517-15   C517-1

Is the resistance greater than 10,000 ohms?
Yes GO to G9
No REPAIR the affected circuits.

G9 CHECK THE LH (LEFT-HAND) EXTERIOR AUTO-DIMMING MIRROR CIRCUITS FOR VOLTAGE WHILE SIMULATING NIGHTTIME CONDITIONS
  • Select PARK.
  • Ignition OFF.
  • Disconnect LH Exterior Mirror C517 .
  • Ignition ON.
  • NOTE: Covering the sensor(s) with a finger or hand is not adequate for this step. Cover the forward and rearward facing sensors with black electrical tape or other dark material. The mirror should adjust to a high reflectance state (mirror will be clear).
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C517-15   C517-1

Is any voltage present?
Yes GO to G10
No GO to G12

G10 CHECK THE LH (LEFT-HAND) EXTERIOR AUTO-DIMMING MIRROR CIRCUITS FOR A SHORT TO VOLTAGE WITH THE INTERIOR AUTO DIMMING MIRROR DISCONNECTED
  • Ignition OFF.
  • Disconnect Interior Auto-Dimming Rear View Mirror C9039 (without automatic wipers) or Interior Auto-Dimming Rear View Mirror C9012 (with automatic wipers).
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C517-15   Ground
      C517-1   Ground

Is any voltage present?
Yes REPAIR the affected circuit.
No • If the vehicle is equipped with an automatic wipers, GO to G11
• If the vehicle is equipped with an without automatic wipers, INSTALL a new interior auto-dimming rear view mirror.
REFER to: Exterior Mirror (501-09 Rear View Mirrors, Removal and Installation).

G11 CHECK FOR CORRECT IPMA (IMAGE PROCESSING MODULE A) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all IPMA connectors and related in-line connectors.
  • Repair:
    • corrosion (install new connector or terminals - clean module pins)
    • damaged or bent pins - install new terminals/pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the IPMA connectors and related in-line connectors. Make sure they seat and latch correctly.
  • Operate the system to determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new IPMA (integral to the interior auto-dimming rear view mirror).
REFER to: Exterior Mirror (501-09 Rear View Mirrors, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

G12 CHECK THE EXTERIOR MIRROR JUMPER HARNESS
  • Inspect the exterior mirror jumper harness between the vehicle harness and the mirror glass for:
    • Open or short circuits
    • Damaged or pushed out pins
    • Corrosion

Is the harness OK?
Yes INSTALL a new LH exterior mirror glass.
REFER to: Exterior Mirror (501-09 Rear View Mirrors, Removal and Installation).
No REPAIR the harness as necessary. If the harness cannot be repaired, INSTALL a new exterior mirror. REFER to: Exterior Mirror (501-09 Rear View Mirrors, Removal and Installation).

PINPOINT TEST H: THE INTERIOR AUTO-DIMMING REAR VIEW MIRROR DOES NOT OPERATE CORRECTLY

Refer to Wiring Diagrams Cell 124 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Rear View Mirrors - System Operation and Component Description (501-09 Rear View Mirrors, Description and Operation).

Possible Sources

  • Obstructed forward or rearward sensors
  • Fuse
  • Wiring, terminals or connectors
  • TR data concern
  • Reverse lamp concern
  • Interior auto-dimming rear view mirror
  • IPMA (integral to the interior auto-dimming rear view mirror) if equipped

Visual Inspection and Pre-checks

  • Inspect the interior auto-dimming rear view mirror forward and rearward facing sensors for damage, debris or obstructions.
  • Inspect BCM fuse 36 (15A).
H1 VERIFY THE OPERATION OF THE REVERSE LAMPS
  • Ignition ON.
  • NOTE: If the TR sensor is malfunctioning and the reverse lamps are inoperative or always on, the interior auto-dimming rear view mirror will not function properly. Move the selector lever through the entire range while monitoring the reverse lamps.
  • Select PARK.

Do the reverse lamps illuminate only in REVERSE (R)?
Yes GO to H2
No DIAGNOSE the reversing lamps.
REFER to: Reversing Lamps (417-01 Exterior Lighting, Diagnosis and Testing).

H2 INSPECT THE MIRROR FOR PROPER INSTALLATION
  • Inspect the interior auto-dimming rear view mirror to make sure the rearward facing sensor is at the top of the mirror glass.

Is the rearward facing sensor at the top of the interior auto-dimming rear view mirror glass?
Yes GO to H3
No INSTALL the interior auto-dimming rear view mirror with the rearward facing sensor at the top of the mirror glass.
REFER to: Interior Rear View Mirror (501-09 Rear View Mirrors, Removal and Installation).

H3 VERIFY THE FORWARD AND REARWARD FACING SENSORS ARE NOT BLOCKED
  • Visually verify the forward and rearward facing sensors are not blocked or obstructed. Sources of obstruction can include:
    • Stickers, window decals or tags.
    • Tool road or parking passes.
    • Fold-down screens for TVs or DVD players.
    • Non-OEM window tinting.
    • Dirt and debris.
    • Decorative objects hung from mirror.

Are either of the sensors blocked?
Yes If possible, REMOVE the obstruction. If it is not possible to remove the obstruction, ADVISE the customer the blockage affects the operation of the interior auto-dimming rear view mirror.
No GO to H4

H4 VERIFY THE OPERATION OF THE INTERIOR AUTO-DIMMING REAR VIEW MIRROR - DAYLIGHT CONDITIONS
  • NOTE: Base electrochromatic mirror shown. IPMA mirror is similar. Use a bright lamp to illuminate the forward facing sensor and the rearward facing sensor. The mirror should adjust to a high reflectance state (mirror will be clear).

Did the mirror adjust to a high reflectance (clear) state?
Yes GO to H5
No INSTALL a new interior auto-dimming rear view mirror.
REFER to: Interior Rear View Mirror (501-09 Rear View Mirrors, Removal and Installation).

H5 VERIFY THE OPERATION OF THE INTERIOR AUTO-DIMMING REAR VIEW MIRROR - NIGHTTIME CONDITIONS
  • NOTE: Covering the sensor(s) with a finger or hand is not adequate for this step. Cover the forward and rearward facing sensors with black electrical tape or other dark material. The mirror should adjust to a high reflectance state (mirror will be clear).

Did the mirror adjust to a high reflectance (clear) state?
Yes GO to H6
No INSTALL a new interior auto-dimming rear view mirror.
REFER to: Interior Rear View Mirror (501-09 Rear View Mirrors, Removal and Installation).

H6 VERIFY THE OPERATION OF THE INTERIOR AUTO-DIMMING REAR VIEW MIRROR - NIGHTTIME CONDITIONS WITH GLARE
  • NOTE: Covering the sensor(s) with a finger or hand is not adequate for this step. Remove the black electrical tape or other dark material from the rearward facing sensor.
  • Use a bright light to illuminate the rearward facing sensor. The mirror should adjust to a lower reflectance state (mirror will be dark).

Did the mirror adjust to a low reflectance (dark) state?
Yes GO to H7
No GO to H8

H7 VERIFY THE OPERATION OF THE INTERIOR AUTO-DIMMING REAR VIEW MIRROR - VEHICLE IN REVERSE AND NIGHTTIME CONDITIONS WITH GLARE
  • NOTE: Covering the sensor(s) with a finger or hand is not adequate for this step. Continue to illuminate the rearward facing sensor with the forward facing sensor covered.
  • Select REVERSE.

Did the mirror adjust to a high reflectance (clear) state after reverse was selected?
Yes Select PARK (P). The system is operating correctly at this time. REVIEW the operation of the interior auto-dimming rear view mirror feature with the customer.
No • If the vehicle is equipped with an automatic wipers, GO to H11
• If the vehicle is equipped with an without automatic wipersIPMA , GO to H10

H8 CHECK FOR VOLTAGE TO THE INTERIOR AUTO-DIMMING REAR VIEW MIRROR
  • Ignition OFF.
  • Disconnect Interior Auto-Dimming Rear View Mirror C9039 (without automatic wipers) or Interior Auto-Dimming Rear View Mirror C9012 (with automatic wipers).
  • Ignition ON.
  • Measure:
    Click to display connectors

      Without automatic wipers


    Positive Lead Measurement / Action Negative Lead
      C9039-1   Ground

    Click to display connectors

      With automatic wipers


    Positive Lead Measurement / Action Negative Lead
      C9012-1   Ground

Is the voltage greater than 11 volts?
Yes GO to H9
No VERIFY that BCM fuse 36 (15A) is OK. If the fuse is OK, REPAIR the circuit. If the fuse is not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

H9 CHECK FOR GROUND AT THE INTERIOR AUTO-DIMMING REAR VIEW MIRROR
  • Ignition OFF.
  • Measure:
    Click to display connectors

      Without automatic wipers


    Positive Lead Measurement / Action Negative Lead
      C9039-10   Ground

    Click to display connectors

      With automatic wipers


    Positive Lead Measurement / Action Negative Lead
      C9012-3   Ground

Is the resistance less than 3 ohms?
Yes • Vehicles with an automatic wipers, GO to H11
• Vehicles without an automatic wipers, GO to H10
No REPAIR the circuit.

H10 CHECK THE REVERSE INHIBIT CIRCUIT FOR VOLTAGE AT THE INTERIOR AUTO-DIMMING REAR VIEW MIRROR WITH THE VEHICLE IN REVERSE
  • Ignition ON.
  • Select REVERSE.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C9039-6   Ground

Is the voltage greater than 11 volts?
Yes INSTALL a new interior auto-dimming rear view mirror.
REFER to: Interior Rear View Mirror (501-09 Rear View Mirrors, Removal and Installation).
No REPAIR the circuit.

H11 PERFORM A NETWORK TEST
  • Select PARK.
  • Using a diagnostic scan tool, perform a network test.

Do the PCM , GWM and IPMA pass the network test?
Yes GO to H12
No See the Symptom Chart: Communication Network.

H12 CHECK FOR IPMA (IMAGE PROCESSING MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Ignition ON.
  • Select REVERSE.
  • Wait 15 seconds.
  • Select PARK.
  • Using a diagnostic scan tool, check the IPMA Diagnostic Trouble Codes (DTCs).

Are any Diagnostic Trouble Codes (DTCs) present?
Yes REFER to the IPMA DTC Chart in this section.
No GO to H13

H13 CHECK FOR CORRECT IPMA (IMAGE PROCESSING MODULE A) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all IPMA connectors and related in-line connectors.
  • Repair:
    • corrosion (install new connector or terminals - clean module pins)
    • damaged or bent pins - install new terminals/pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the IPMA connectors and related in-line connectors. Make sure they seat and latch correctly.
  • Operate the system to determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new IPMA (integral to the interior auto-dimming rear view mirror). REFER to: Interior Rear View Mirror (501-09 Rear View Mirrors, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.


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