AV CONTROL UNIT: Diagnosis Procedure
- CHECK FUSE
Check for blown fuses.
Power source Fuse No. Battery 34 Is the inspection result normal?
YES: GO TO 2.
NO: Be sure to eliminate cause of malfunction before installing new fuse.
- CHECK BATTERY POWER SUPPLY CIRCUIT
Check voltage between AV control unit harness connector and ground.
Signal name Connector No. Terminal No. Ignition switch position Value (Approx.) Battery power supply M208 19 OFF Battery voltage Is the inspection result normal?
YES: GO TO 3.
NO: Check harness between AV control unit and fuse.
- CHECK ACC POWER SUPPLY CIRCUIT
Check voltage between AV control unit harness connector and ground.
Signal name Connector No. Terminal No. Ignition switch position Value (Approx.) ACC power supply M208 7 ACC Battery voltage Is the inspection result normal?
YES: GO TO 4.
NO: Check harness between AV control unit and BCM.
- CHECK GROUND CIRCUIT
- Turn ignition switch OFF.
- Disconnect AV control unit connectors.
- Check continuity between AV control unit harness connectors and ground.
Signal name Connector No. Terminal No. Ignition switch position Continuity Ground M208 20 OFF Existed Is the inspection result normal?
YES: INSPECTION END
NO: Repair harness or connector.