Lincoln Nautilus Manuals

Lincoln Nautilus: Cruise Control / Cruise Control - System Operation and Component Description. Description and Operation

Lincoln Nautilus 2018-2023 Service Manual / Electrical / Electronic Feature Group / Cruise Control / Cruise Control - System Operation and Component Description. Description and Operation

System Operation

Non-Adaptive Cruise Control


Item Description
1 Brake switch assembly
2 IPC
3 Accelerator pedal
4 Deactivator switch
5 Stoplamp switch
6 SCCM
7 PCM
8 Cruise control switches
9 GWM
10 ABS module
11 RCM
12 Steering Effort Control Module (SECM) (adaptive steering)
13 SASM (adaptive steering)

Network Message Chart

  Network Input Messages - IPC


Broadcast Message Originating Module Message Purpose
Cruise control override   PCM Driver overriding cruise control with accelerator pedal.
Cruise control status   PCM Data used for speed control indicator status.
Cruise control set speed   PCM Data used to display the driver selected vehicle speed

  Network Input Messages - PCM


Broadcast Message Originating Module Message Purpose
Cruise control switch commands   SCCM Used for cruise control enable/disable and operating mode request.
Stability control event in progress ABS module Deactivates speed control when requested.
Traction control event in progress
Vehicle lateral acceleration   RCM Deactivates speed control when requested.
Vehicle longitudinal acceleration
Vehicle yaw rate

  Network Input Messages - SCCM (Adaptive Steering)


Broadcast Message Originating Module Message Purpose
Cruise control switch commands   SASM Used for cruise control switch enable/disable and operating mode commands on vehicles equipped with adaptive steering.

Cruise Control Operation

The cruise control functions include:

  • turning on the cruise control system.
  • setting and maintaining the desired vehicle speed.
  • accelerating the vehicle speed.
  • coasting down to a lower speed.
  • resuming the prior vehicle speed.
  • turning off the cruise control system.

The cruise control system maintains a selected vehicle speed within a range between 32 km/h (20 mph), or 30 km/h (18 mph) if equipped with a metric cluster, and the maximum limited vehicle speed. When a MyKey® restricted key is in use, the vehicle speed will not exceed the MyKey® maximum limited speed. During normal driving conditions, the vehicle speed can fluctuate slightly from the selected set speed due to road conditions. The vehicle speed can fluctuate more noticably when driving up and down steep hills.

Certain conditions cause the cruise control system to deactivate:

  • Application of the parking brake
  • Transmission gear selector is placed into a position other than D or OD
  • Cruise control set speed is overridden with the accelerator pedal for a period longer than 5 minutes
  • Cruise control switch is pressed or stuck longer than 2 minutes
  • Vehicle speed decreases more than 16 km/h (10 mph) below the set speed
  • ABS fault

The BPP switch assembly (contains the stoplamp switch and cruise control deactivator switch) and APP sensor are hardwired inputs to the PCM .

Electronic Throttle Body (ETB) command is a hardwired output of the PCM .

The vehicle speed is controlled by the PCM through the Electronic Throttle Control (ETC) subsystem.

The cruise control system provides self-diagnostics. Cruise control is disabled anytime an error is detected in the system. No IPC indicator or message center messages are displayed when faults occur. Fault codes are logged by the PCM , SCCM or SECM (if equipped with Adaptive Steering).

An Electronic Throttle Control (ETC) system fault also causes the cruise control system to be disabled. In this case, an Electronic Throttle Control (ETC) system powertrain malfunction (wrench) warning indicator is displayed.

Cruise Control Indicator

The cruise control indicator, located in the IPC , illuminates to indicate the cruise control system is active.

Steering Wheel Switch Function

Cruise control switch inputs are received by the SCCM and sent to the GWM on the HS-CAN2 and then to the PCM on the HS-CAN1 .

Pressing (ON) and releasing the ON/OFF switch turns the cruise control system on. Pressing (SET+) or (SET-) on the SET switch while the vehicle is traveling at the desired speed activates the cruise control system.

Pressing up or down on the SET switch while in the active mode increases or decreases the maintained vehicle speed by 2 kmh per press when displayed units are "kmh" and 1 mph per press when displayed units are "mph". If the respective switch is pressed and held, the vehicle speed continues to accelerate or decelerate until the switch is released.

Pressing down (OFF) and releasing the ON/OFF switch, or turning the ignition switch to the OFF position, turns the cruise control system off. While the cruise control system is active, applying the brake pedal or pressing the CNCL (CANCEL) switch puts the cruise control system into standby mode. Pressing the RES (RESUME) switch when the cruise control system is in standby mode causes the vehicle to accelerate to the last speed. Resume does not function if the OFF switch is pressed, the ignition switch is cycled OFF, or if the current vehicle speed is below the minimum operational speed.

Steering Wheel Switches

The cruise control steering wheel mounted switches are momentary contact switches that toggle up and down for the switch state. On vehicles without adaptive steering, the switches are an input to the SCCM . On vehicles with adaptive steering, the switches are an input to the SECM . The SECM sends switch data to the SASM (part of the clockspring assembly), and the SASM sends the switch data to the SCCM over the HS-CAN2 .

Brake Switch

When the brake pedal is applied, the cruise control deactivator switch, integrated in the BPP switch, opens and removes the ground signal from the PCM input circuit releasing the throttle, immediately deactivating the cruise control system.

    Cruise Control - Overview. Description and Operation

    Overview The cruise control system is controlled by the PCM . The cruise control mode is selected from the steering wheel mounted switches which are integrated into the steering wheel...

    Cruise Control. Diagnosis and Testing

    DTC Charts 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)...

    Other information:

    Lincoln Nautilus 2018-2023 Owners Manual: Anti-Theft Alarm System Settings. Security – Troubleshooting


    Anti-Theft Alarm System Settings What are the Alarm Security Levels You can select two levels of alarm security, all sensors and perimeter sensing. All Sensors All sensors is the standard setting. In all sensors, all equipped sensors are on when you arm the alarm...

    Lincoln Nautilus 2018-2023 Owners Manual: Window Bounce-Back. Locking the Rear Window Controls


    Window Bounce-Back What Is Window Bounce-Back The window stops and reverses if it detects an obstruction when closing. Overriding Window Bounce-Back WARNING: If you override bounce-back, the window does not reverse if it detects an obstacle. Take care when closing the windows to avoid personal injury or damage to your vehicle...

    Categories

    Programming the Garage Door Opener to Your Garage Door Opener Motor

    Lincoln Nautilus. Programming the Garage Door Opener to Your Garage Door Opener Motor

    Press the learn button on the garage door opener motor, you have 30 seconds to complete the next two steps. Return to your vehicle.

    read more

    Copyright © 2023 www.linautilus.com