Inspection Procedure
- CHECK DTC RELATING TO FRONT RIGHT WSS OF ABS (OR WSS)
- Connect a Hi-Scan (Pro) to the data link connector.
- Turn the ignition switch ON and monitor any other DTCs relating to front right WSS of ABS (or WSS).
Is DTC relating to front right wheel speed sensor of ABS (or WSS)?
- No: Go to next step.
- Yes: Do all repairs associated with those codes before proceeding with this procedure.
- CHECK ABS CONTROL MODULE (OR WSS) AND ECM CONNECTORS
Thoroughly check connectors for loose, poor connection, bent, corrosion, contamination, deterioration, or damage. See CONNECTOR INSPECTION PROCEDURE .
Are all connectors good?
- Yes: Go to next step.
- No: Repair or replace it.
- CHECK FOR OPEN IN HARNESS
[WITH ABS]
- Turn ignition switch to OFF position, and then disconnect ABS control module and ECM connector.
- Measure resistance between terminal 3 of the ABS control module harness connector and 39 of the ECM harness connector.
Specification (Resistance) : below 1Ω
[WITHOUT ABS]
- Turn ignition switch to OFF position, and then disconnect WSS and ECM connector.
- Measure resistance between terminal 1 of the WSS harness connector and 17 of the ECM harness connector.
- Measure resistance between terminal 2 of the WSS harness connector and 18 of the ECM harness connector.
Specification (Resistance) : below 1Ω
Does each resistance indicate continuity?
- Yes: Go to next step.
- No: Repair open in harness.
- CHECK FOR SHORT TO GROUND IN HARNESS
[WITH ABS]
- Turn ignition switch to OFF position, and then disconnect ABS control module and ECM connector.
- Measure resistance between terminal 3 of the ABS control module harness connector and chassis ground.
Specification (Resistance) : infinite
[WITHOUT ABS]
- Turn ignition switch to OFF position, and then disconnect WSS and ECM connector.
- Measure resistance between terminal 1 of the WSS harness connector and chassis ground.
- Measure resistance between terminal 2 of the WSS harness connector and chassis ground.
Specification (Resistance) : infinite
Does each resistance indicate open?
- Yes: Proceed with ECM PROBLEM INSPECTION PROCEDURE .
- No: Repair short or short to chassis ground in harness.