W/Harness Inspection

Electronic Hydraulic Power Steering System
C1611 CAN Time-out EMS - 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 connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.
3. Has a problem been found?






CAN communication circuit inspection (EHPS ECU <-> ECM)

1. Ignition "OFF"
2. Disconnect ECM connector and EHPS ECU connector
3. Measure the resistance between CAN-HIGH terminal of ECM harness connector and CAN-HIGH terminal of EHPS ECU harness connector.
4. Measure the resistance between CAN-LOW terminal of ECM harness connector and CAN-LOW terminal of EHPS ECU harness connector.

Specification : below 1 Ohms




5. Is the measured resistance within specification?