Lincoln Aviator 2020-2022 Service Manual / Chassis / Brake System / Anti-Lock Brake System (ABS) and Stability Control / Description and Operation - Anti-Lock Brake System (ABS) and Stability Control - Overview

Lincoln Aviator: Anti-Lock Brake System (ABS) and Stability Control / Description and Operation - Anti-Lock Brake System (ABS) and Stability Control - Overview

Overview

The ABS and stability control systems are comprised of the following subsystems to assist the driver in maintaining control of the vehicle:

  • ABS
  • Curve control
  • Drive away release (EPB)
  • EBD
  • EPB control
  • ESC
  • Hill descent control
  • Hill start assist
  • Hydraulic fade compensation
  • RSC
  • Selectable drive modes
  • Supplemental braking assist
  • Supports adaptive cruise control
  • Supports collision avoidance
  • Traction control
  • Trailer sway control

The ABS helps maintain steering control during hard braking by preventing wheel lockup. The ABS also includes a brake assist function which provides maximum brake system pressure during a severe braking situation.

The curve control system helps maintain vehicle stability while traveling through a curve.

The drive away release function automatically releases the electric parking brake once certain conditions have been met.

The EBD system helps maintain vehicle control by keeping a balanced braking condition between the front and rear wheels.

The ABS module is the ECU for the electric parking brake system. For information on the electric parking brake system,
Refer to: Anti-Lock Brake System (ABS) and Stability Control - Overview (206-09 Anti-Lock Brake System (ABS) and Stability Control, Description and Operation).

The ESC system helps prevent skids or lateral slides by modulating brake fluid pressure to individual brake calipers and reducing engine torque.

The hill descent control feature helps maintain a low vehicle speed while descending steep inclines on various surface conditions.

The hill start assist feature is designed to assist the driver when trying to start the vehicle while on an incline. Using the ABS, the hill start assist system holds the vehicle on an incline for a short time, allowing the driver to release the brake pedal and press the accelerator pedal without needing to use the parking brake.

Hydraulic fade compensation counteracts brake fade by providing additional brake pressure at the wheel ends if the maximum achievable vehicle deceleration is not reached when the driver applies significant force to the brake pedal.

The RSC system helps prevent excessive vehicle roll by modulating brake fluid pressure to individual brake calipers and reducing engine torque.

The supplemental braking assist system uses the hydraulic pump motor and HCU to provide additional braking assist during a severe braking event or to or to assist with adaptive cruise control and collision avoidance.

The ABS supports the adaptive cruise control system by applying the brakes as necessary to maintain the distance gap set by the driver. For information on the adaptive cruise control system,
Refer to: Anti-Lock Brake System (ABS) and Stability Control - Overview (206-09 Anti-Lock Brake System (ABS) and Stability Control, Description and Operation).

The ABS supports the collision avoidance system by monitoring information and precharging the brake system allowing the vehicle to stop in the shortest distance possible. For information on the collision avoidance system,
Refer to: Anti-Lock Brake System (ABS) and Stability Control - Overview (206-09 Anti-Lock Brake System (ABS) and Stability Control, Description and Operation).

The selectable drive mode system helps maintain vehicle traction by adapting the responses of the engine, transmission, 4WD system, the dynamic suspension system, the EPAS system, the ABS and the stability control system to the demands of the terrain. For additional information on the selectable drive mode system,
Refer to: Anti-Lock Brake System (ABS) and Stability Control - Overview (206-09 Anti-Lock Brake System (ABS) and Stability Control, Description and Operation).

The traction control system helps prevent loss of traction by reducing drive-wheel spin during acceleration.

The trailer sway control system helps maintain vehicle stability while towing a trailer by detecting and helping to reduce the conditions causing trailer sway.

Some noise from the system and pulsations in the brake pedal are normal conditions during most ABS and stability control system activations. Longer than normal brake pedal travel may also be experienced immediately following an ABS or stability control system activation.

    Anti-Lock Brake System (ABS) and Stability Control

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    Description and Operation - Anti-Lock Brake System (ABS) and Stability Control - System Operation and Component Description

    System Operation System Diagrams Anti-Lock Brake System (ABS) and Stability Control Item Description 1 EBB assembly 2 ABS module 3 GWM 4 RCM 5 PSCM 6 BCM 7 AWD module 8 IPC 9 IPMA 10 FCIM 11 GSM 12 PCM 13 SODR 14 SODL 15 Brake fluid level switch 16 Hydraulic pressure sensor 17 Hydraulic pump motor 18 Hydraulic valve solenoids 19 IPMB 20 CCM 21 PAM 22 ATCM 23 Wheel speed sensors 24 SOBDMC ( HEV) 25 VDM 26 Actuator position sensor Steering Angle Sensor Module (SASM) — Vehicles With Adaptive Steering Item Description 1 Private CAN 2 SASM 3 Steering wheel rotation sensor 4 LH multifunction switch 5 RH multifunction switch 6 PSCM 7 RCM 8 SUMA 9 SECM (Adaptive Steering Only) 10 GWM 11 PCM 12 BCM 13 APIM 14 IPC 15 HVAC 16 SIMA Network Message Charts Anti-Lock Brake System (ABS) Module - Network Input Messages   Module Network Input Messages - ABS Module Broadcast Message Originating Module Message Purpose Accelerator pedal position   PCM This message is sent to the GWM and then to the ABS module...

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    Categories

    Activating Intelligent Access

    The intelligent access key must be within 3 ft (1 m) of the door or luggage compartment you intend to lock or unlock.

    At a Door

    Electronic door handles are on each door. Gently depress the switch inside the exterior door handle to unlock and open the door. An unlock symbol illuminates on the door window trim indicating your vehicle is unlocked.

    Lincoln Aviator. Activating Intelligent Access

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