W/Harness Inspection

HEV Control System
U0101 Lost Communication with TCM (C-CAN) - Inspection/Repair:_:W/Harness Inspection

W/Harness Inspection




1. Perform a visual check of the Electrical systems including the harness connectors and check for corrosion and deformation.plus poor terminals fit.
2. Poor connections can be checked by monitoring signals in current data while moving and lightly pulling on the harness and connectors.
3. Has a problem been found?






CAN communication circuit inspection

CAN communication line inspection
1. IG KEY OFF.
2. Disconnect HCU connector and PCM connector.
3. Measure the resistance between CAN-HIGH terminal of HCU harness connector and CAN-HIGH terminal of PCM harness connector.
4. Measure the resistance between CAN-LOW terminal of HCU harness connector and CAN-LOW terminal of PCM harness connector.

Specification :Below 1Ohms








5. Is the measured registance within specification ?