W/Harness Inspection

Electric Parking Brake
C1656 CAN signal error Cluster - W/Harness Inspection

Terminal and Connector Inspection

1. Many malfunctions in the electrical system are caused by poor harness(es) and terminal condition. 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 Inspection

Check CAN communication line
1. IG "OFF"
2. Disconnect Cluster ECU connector and EPB ECU connector.
3. Measure resistance between CAN-High terminal of Cluster ECU harness connector and CAN-High terminal of EPB ECU harness connector.
4. Measure resistance between CAN-Low terminal of Cluster ECU harness connector and CAN-Low terminal of EPB ECU harness connector.

Specification : Below approx. 1 Ohms




5. Is the measured value within specifications?