Lincoln Nautilus: Supplemental Restraint System / Supplemental Restraint System (SRS) Depowering. General Procedures
Depower
WARNING:
Incorrect repair techniques or actions can cause an
accidental Supplemental Restraint System (SRS) deployment. Never
compromise or depart from these instructions. Failure to precisely
follow all instructions could result in serious personal injury from an
accidental deployment.
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WARNING:
Before beginning any service procedure in this
manual, refer to health and safety warnings in section 100-00 General
Information. Failure to follow this instruction may result in serious
personal injury.
Refer to: Health and Safety Precautions (100-00 General Information, Description and Operation).
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Determine if a SRS
fault is present. Turn the ignition OFF and wait 10 seconds, then turn
the ignition ON and monitor the airbag warning indicator. The airbag
warning indicator illuminates continuously for approximately 6 seconds
and then turns off. Continue to monitor the airbag warning indicator for
approximately 30 seconds as this is the time required for the RCM to complete testing of the SRS .
-
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If the airbag warning indicator either fails to light, remains lit continuously or flashes, an SRS
fault is present. The flashing may not occur until approximately 30
seconds after the ignition has been turned from OFF to ON. If this
occurs, diagnose and repair any SRS faults before proceeding with other repairs. Go to step 5.
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If the airbag warning indicator is inoperative and a SRS
fault exists, a chime sounds in a pattern of 5 sets of 5 beeps or a
message displays in the message center. If this occurs, diagnose and
repair the airbag warning indicator and any SRS faults before proceeding with other repairs. Go to step 5
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If after the ignition has been turned ON for 30
seconds the airbag warning indicator remains unlit with no chime or SRS
message displayed in the message center, no SRS fault is present. Go to
step 4.
No SRS Fault Present (with ignition ON, airbag warning indicator stays off after prove out)
-
WARNING:
Turn the ignition OFF and wait one minute to
deplete the backup power supply. Ignition must remain OFF until repair
is complete. Failure to follow this instruction may result in serious
personal injury or death in the event of an accidental deployment.
Turn the ignition OFF and wait one minute before continuing vehicle service.
SRS Fault Present
-
Turn the ignition OFF.
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Remove the BCM fuses from the BJB . Refer to Wiring Diagram Cell 11 for fuse and relay information.
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Disconnect the battery.
Refer to: Battery Disconnect and Connect (414-01 Battery, Mounting and Cables, General Procedures).
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Wait at least one minute before continuing vehicle service.
Disposal
Disposal of Deployable Devices and Pyrotechnic Devices That Are Undeployed-Inoperative
NOTE:
All inoperative airbags, seatbelt pretensioners and
inflatable seatbelt inflators have been placed on the Mandatory Return
List...
Repower
WARNING:
Incorrect repair techniques or actions can cause an
accidental Supplemental Restraint System (SRS) deployment. Never
compromise or depart from these instructions...
Other information:
What Is the Personal Safety System
An advanced safety system that protects
occupants in frontal crashes.
How Does the Personal Safety System Work
This system provides an improved level of
frontal crash protection to front seat
occupants and is designed to reduce the risk
of airbag-related injuries...
Removal
NOTICE:
If installing a new A/C compressor due to an internal failure of the
old unit, carry out the following procedures to remove contamination
from the A/C system. Failure to remove contamination from the A/C
system, if present, will result in poor A/C performance and/or damage to
the new A/C compressor and other components...