CAN

EV/HEV BRANCH LINE CIRCUIT (CAN COMMUNICATION CIRCUIT)

Diagnosis Procedure


1. CHECK CONNECTOR

1.Turn the power switch OFF.
2.Disconnect the 12V battery cable from the negative terminal. Refer to "Precaution for Removing 12V Battery" Precaution For Removing 12V Battery.
3.Check the terminals and connectors of the VCM for damage, bend and loose connection (unit side and connector side).
Is the inspection result normal?
YES- GO TO 2.
NO- Repair the terminal and connector.

2. CHECK HARNESS FOR OPEN CIRCUIT

1.Disconnect the connector of VCM.
2.Check the resistance between the VCM harness connector terminals.





Is the measurement value within the specification?
YES- GO TO 3.
NO- Repair the VCM branch line (CAN communication circuit side).

3. CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the VCM. Refer to "VCM : Diagnosis Procedure" VCM.
Is the inspection result normal?
YES (Present error)-Replace the VCM. Refer to "Removal and Installation" Removal And Installation.
YES (Past error)-Error was detected in the VCM branch line (CAN communication circuit side).
NO- Repair the power supply and the ground circuit.