Pinpoint Test C: DTC U0415 - 4X4 Control Module Received No/Invalid Data From Abs Module

WARNING: When directed to drive the vehicle as part of this test, drive the vehicle on a hard surface in an area without traffic to prevent a crash. Failure to follow these instructions may result in personal injury.

NOTE: Carry out a thorough inspection and verification as outlined before carrying out this pinpoint test. Refer to Inspection and Verification .

C1 CHECK FOR ABS MODULE DTCs
- Key in ON position.
- Carry out the ABS module self-test.
- Review the results of the ABS module self-test.
- Are any DTCs present?
1. YES : REFER to VEHICLE DYNAMIC SYSTEMS article for further diagnosis of the ABS.
2. NO : Go to C2.
C2 CHECK WHEEL SPEED SENSORS PIDs
- Enter the following diagnostic mode on the diagnostic tool: DataLogger - 4X4 Control Module
- While driving the vehicle at 48 km/h (30 mph), monitor the following wheel speed sensor PIDs:
  - Left Front Wheel Speed Sensor (LF_WSPD)
  - Left Rear Wheel Speed Sensor (LR_WSPD)
  - Right Front Wheel Speed Sensor (RF_WSPD)
  - Right Rear Wheel Speed Sensor (RR_WSPD)
- Do the 4 wheel speed sensors match the speedometer and are they within 2 km/h (1.2 mph) of each other?
1. YES : The system is operating correctly at this time. CLEAR the DTCs. REPEAT the self-test.
2. NO : INSPECT for proper tire size and tire inflation. If no concerns with the tires are found, REFER to VEHICLE DYNAMIC SYSTEMS article for further diagnosis of the ABS.