W/Harness Inspection

Electronic Hydraulic Power Steering System
C1656 CAN Signal Error Cluster - Inspection/Repair:_:W/Harness Inspection

W/Harness Inspection

1. Many malfunctions in the electrical system are caused by poor harness and terminals. Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage.
2. Thoroughly check all connectors (and connections) for looseness, bending, corrosion, contamination, deterioration, and/or damage.
3. Has a problem been found?






CAN communication circuit inspection

CAN communication circuit inspection (EHPS <-> Cluster )
1. Ignition "OFF"
2. Disconnect EHPS ECU connector and Cluster connector
3. Measure the resistance between CAN-HIGH terminal of EHPS ECU harness connector and CAN-HIGH terminal of Cluster harness connector.
4. Measure the resistance between CAN-LOW terminal of EHPS ECU harness connector and CAN-LOW terminal of Cluster harness connector.

Specification :below 1Ohms




5. Is the measured resistance within specification ?