Power Supply Circuit Inspection
WARNING: This page is about a different car, the 2006 Nissan Xterra. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK FUSES
Check that the following fuses are not blown.
UNIT TERMINAL SIGNAL NAME DESCRIPTIONUnit Terminals Signal name Fuse No. Audio unit 6 Battery power 29 10 Ignition switch ACC or ON 4 Audio amplifier (premium system) 1 Battery power 17 17 OK or NG
OK: GO TO 2.
NG: If fuse is blown, be sure to eliminate cause of problem before installing new fuse. Refer to "POWER SUPPLY ROUTING CIRCUIT ".
- POWER SUPPLY CIRCUIT CHECK
- Disconnect audio unit connector M43 and audio amplifier connector B158 (premium system).
- Check voltage between the audio unit and ground.UNIT TERMINAL SIGNAL NAME DESCRIPTION
Unit Terminal No. OFF ACC ON (+) (-) Connector Terminal Audio unit M43 6 Ground Battery voltage Battery voltage Battery voltage 10 Ground 0V Battery voltage Battery voltage - Check voltage between audio amplifier (premium system) and ground.
UNIT TERMINAL SIGNAL NAME DESCRIPTIONUnit Terminal No. OFF ACC ON (+) (-) Connector Terminal Audio amplifier B158 1 Ground Battery voltage Battery voltage Battery voltage 17 OK or NG
OK: GO TO 3.
NG :
- Check connector housings for disconnected or loose terminals.
- Repair harness or connector.
- GROUND CIRCUIT CHECK
- Turn ignition switch OFF.
- Check continuity between audio amplifier (premium system) harness connector B158 terminal 4 and terminal 20 and ground.
Continuity should exist.
OK or NG
OK: Inspection End.
NG :
- Check connector housings for disconnected or loose terminals.
- Repair harness or connector.