W/Harness Inspection

C1616 CAN Bus Off

Inspection/Repair - W/Harness Inspection

Terminal and Connector Inspection

1. Many malfunctions in the electrical system are caused by poor harness and terminal condition.
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 Signal Circuit Inspection

Short Check (to ground)
1. Ignition "OFF" & Engine "OFF".
2. Disconnect TPMS ECU, PCM and ABS ECU connector.
3. Measure resistance between CAN LOW terminal, CAN HIGH terminal of the TPMS ECU harness connector and chassis ground.

Specification :Infinity Ohms








4. Is the measured resistance within specifications?





CAN BUS Resistance Check
1. Ignition "OFF" & Engine "OFF".
2. Disconnect TPMS ECU, PCM and ABS ECU connector.
3. Measure resistance between CAN LOW terminal and CAN HIGH terminal of the TPMS ECU harness connector.

Specification :Approx. 120 Ohms








4. Is the measured resistance within specifications?