RAM 3500 HD Truck 4WD L6-6.7L DSL Turbo (2008)
Wheel Speed Sensor: Testing and Inspection
REAR WHEEL ANTILOCK
Diagnosis of base brake conditions which are mechanical in nature should be performed first. This includes brake noise, lack of power assist, parking
brake, or vehicle vibration during normal braking.
The RWAL brake system performs several self-tests every time the ignition switch is turned on and the vehicle is driven. The CAB monitors the system
inputs and outputs circuits to verify the system is operating properly. If the CAB senses a malfunction in the system it will set a DTC into memory and
trigger the warning lamp.
NOTE: A scan tool is used to diagnose the RWAL system. For test procedures refer to the ABS Electrical Diagnostic Section.