CAN

AV 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 AV 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 AV control unit.
2.Check the resistance between the AV control unit harness connector terminals.
-Without navigation system (Without rear view monitor)





-Without navigation system (With rear view monitor)





-With navigation system





Is the measurement value within the specification?
YES- GO TO 3.
NO- Repair the AV control unit branch line.

3. CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the AV control unit. Refer to the following.
- Base audio without rear view camera: Without Rear View Camera
- Base audio with rear view camera: With Rear View Camera
- BOSE audio without navigation: Without Navigation
- BOSE audio with navigation: With Navigation
Is the inspection result normal?
YES (Present error)-Replace the AV control unit. Refer to the following.
- Base audio without rear view camera: Without Rear View Camera
- Base audio with rear view camera: With Rear View Camera
- BOSE audio without navigation: Without Navigation
- BOSE audio with navigation: With Navigation
YES (Past error)-Error was detected in the AV control unit branch line.
NO- Repair the power supply and the ground circuit.