AV CONTROL UNIT : Diagnosis Procedure
WARNING: This page is about a different car, the 2011 Nissan 370Z. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK FUSE
Check for blown fuses.
FUSE REFERENCEPower source Fuse No. Battery 34 Ignition switch ACC or ON 19 Is the inspection result normal?
YES: Go to 2.
NO: Be sure to eliminate cause of malfunction before installing new fuse.
- CHECK POWER SUPPLY CIRCUIT
Check voltage between AV control unit harness connectors and ground.
TERMINALS REFERENCESignal name Connector No. Terminal No. Ignition switch position Value (Approx.) Battery power supply M84 19 OFF Battery voltage ACC power supply 7 ACC Battery voltage Is the inspection result normal?
YES: Go to 3.
NO: Check harness between AV control unit and fuse.
- CHECK GROUND CIRCUIT
- Turn ignition switch OFF.
- Disconnect AV control unit connectors.
- Check continuity between AV control unit harness connectors and ground.
CONTINUITY SPECIFICATION
| Signal name | Connector No. | Terminal No. | Ignition switch position | Continuity |
|---|---|---|---|---|
| Ground | M84 | 20 | OFF | Existed |
Is the inspection result normal?
YES: INSPECTION END
NO: Repair harness or connector.