Pinpoint Test Bf: Abs (Anti-Lock Brake System) False Activation, Abs (Anti-Lock Brake System) Too Sensitive, Or Abs (Anti-Lock Brake System) Activates On Normal Stop: Notes

WARNING: This page is about a different car, the 2021 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.

Refer to VEHICLE DYNAMIC SYSTEMS for schematic and connector information.

Normal Operation and Fault Conditions

The ABS module uses several sensors (wheel speed, steering wheel rotation, stability control) to determine if ABS or stability control intervention is required. Accurate sensor readings rely on the vehicle being in good operational condition with as few mechanical and electrical concerns as possible. In addition, the wheels and tires must be within vehicle manufacturer's specifications as described on the VC label and the base brake system and parking brake system must be in good operational condition. If one or more of these items or systems are in need of repair or are not working at full capacity, the ABS or stability control system may activate when the driving condition does not warrant activation.

REFER to: Anti-Lock Brake System (ABS) and Stability Control - System Operation and Component Description .

Possible Sources

Wheels
Tires
Suspension components
Parking brake shoes out of adjustment (dragging)
Steering wheel rotation sensor
Yaw rate sensor (stripped chassis)
RCM (chassis cab)