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 following terminals and connectors for damage, bend and loose connection (unit side and connector side).
-AV control unit
-Harness connector M25 and PCB harness side connector
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.
-Models with navigation system





-Models without navigation system





Is the measurement value within the specification?
YES- GO TO 3.
NO- GO TO 4.

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 navigation system: Base Audio
- BOSE audio with navigation system: Bose Audio
Is the inspection result normal?
YES (Present error)-Replace the AV control unit. Refer to the following.
- Base audio without navigation system: Base Audio
- BOSE audio with navigation system: Bose Audio
YES (Past error)-Error was detected in the AV control unit branch line.
NO- Repair the power supply and the ground circuit.

4. CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

1.Disconnect the harness connector M25.
2.Check the continuity between the AV control unit harness connector and the harness connector.
-Models with navigation system





-Models without navigation system





Is the inspection result normal?
YES- Replace the PCB harness.
NO (With navigation system)-Repair the harness between the AV control unit harness connector M210 and the harness connector M25.
NO (Without navigation system)-Repair the harness between the AV control unit harness connector M84
and the harness connector M25.