Diagnosis Procedure
- CHECK FUSE
Check for blown fuses.
Power source Fuse No. Battery 35 Ignition switch ACC or ON 19 Is the inspection result normal?
YES
GO TO STEP 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 connectors and ground.
Signal name (+) (-) Ignition switch position Voltage
(Approx.)AV control unit Connector Terminal Battery power supply M208 19 Ground OFF Battery voltage Is the inspection result normal?
YES
GO TO STEP 3 .
NO
Check harness between AV control unit and fuse.
- CHECK ACC POWER SUPPLY CIRCUIT
Check voltage between AV control unit harness connectors and ground.
Signal name (+) (-) Ignition switch position Voltage
(Approx.)AV control unit Connector Terminal ACC power supply M208 7 Ground ACC Battery voltage Is the inspection result normal?
YES
GO TO STEP 4 .
NO
- Check harness between AV control unit and BCM/fuse.NOTE:
ACC power supply circuit varies according to specifications.
- Check harness between AV control unit and BCM/fuse.
- CHECK GROUND CIRCUIT
- Turn ignition switch OFF.
- Disconnect AV control unit connectors.
- Check continuity between AV control unit harness connectors and ground.
AV control unit Ground Continuity Connector Terminal M208 20 Existed
Is the inspection result normal?
YES
INSPECTION END
NO
Repair harness or connector.