Diagnosis Procedure
- CHECK CONTINUITY COMPOSITE IMAGE SIGNAL CIRCUIT (AV CONTROL UNIT TO FRONT DISPLAY UNIT)
- Turn ignition switch OFF.
- Disconnect AV control unit connector and front display unit connector.
- Check continuity between AV control unit harness connector and front display unit harness connector.CONTINUITY REFERENCE CHART
AV control unit Front display unit Continuity Connector Terminal Connector Terminal M172 46 M156 4 Existed 47 15 - Check continuity between AV control unit harness connector and ground.CONTINUITY REFERENCE CHART
AV control unit Ground Continuity Connector Terminal M172 46 Not existed 47 Is inspection result normal?
YES: GO TO 2.
NO: Repair harness or connector.
- CHECK COMPOSITE IMAGE SIGNAL (AV CONTROL UNIT TO FRONT DISPLAY UNIT)
- Connect AV control unit connector and front display unit connector.
- Turn ignition switch ON.
- Check signal between front display unit harness connector.SIGNAL REFERENCE CHART
Probe Condition Standard Reference value (+) (-) Front display unit Connector Terminal Connector Terminal M156 15 M156 4 When DVD, AUX or camera image is displayed. Waveform according to composite image is input. Is inspection result normal?
YES: Replace front display unit. Refer to "REMOVAL AND INSTALLATION ".
NO: Replace AV control unit. Refer to "REMOVAL AND INSTALLATION ".