CAN

PWBD BRANCH LINE CIRCUIT

Diagnosis Procedure


1. CHECK CONNECTOR

1.Turn the ignition switch OFF.
2.Disconnect the battery cable from the negative terminal.
3.Check the terminals and connectors of the automatic back door control unit 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 automatic back door control unit.
2.Check the resistance between the automatic back door control unit harness connector terminals.





Is the measurement value within the specification?
YES- GO TO 3.
NO- Replace body No. 2 harness.

3. CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the automatic back door control unit. Power Supply And Ground Circuit.
Is the inspection result normal?
YES (Present error)-Replace the automatic back door control unit. Service and Repair.
YES (Past error)-Error was detected in the automatic back door control unit branch line.
NO- Repair the power supply and the ground circuit.