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Pinpoint Test D: 4X4 Control Module Received No/Invalid Data From Anti-Lock Brake System (Abs) Module

CAUTION: This test must be carried out on a hard surface in an area without traffic.

NOTE: Conduct Steps 1 through 7 outlined in Inspection and Verification prior to carrying out this test.

D1 CHECK THE WHEEL SPEED SENSORS
- Key in ON position.
- Enter the diagnostic mode on the scan tool. View 4X4 control module PID: WSPD. Monitor and record.
- Monitor the wheel speed sensors while driving the vehicle at a constant 32 km/h (20 mph).
- Do the 4 wheel speed sensors match the speedometer and are they within 3 km/h (1.8 mph) of each other?
1. YES : The system is operating correctly at this time. CLEAR the DTCs. REPEAT the self-test.
2. NO : REFER to VEHICLE DYNAMIC SYSTEMS for further diagnosis of the ABS system.