Power Supply Circuit Inspection
WARNING: This page is about a different car, the 2007 Nissan Quest. 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.
FUSES SPECIFICATIONUnit Terminals Signal name Fuse No. Audio unit 6 Battery power 31 10 Ignition switch ACC or ON 4 AV switch 1 Battery power 19 BOSE speaker amp. (with BOSE) 1 Battery power 31 Subwoofer (BOSE system) 6 Battery power 18 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, subwoofer (with BOSE) or BOSE speaker amp. (with BOSE) connector.
- Check voltage between the audio unit and ground.TERMINALS VOLTAGE CHART
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 subwoofer (BOSE system) and ground.TERMINALS VOLTAGE CHART
Unit Terminal No. OFF ACC ON (+) (-) Connector Terminal Subwoofer B11 6 Ground Battery voltage Battery voltage Battery voltage - Check voltage between BOSE speaker amp. (with BOSE) and ground.TERMINALS VOLTAGE CHART
Unit Terminal No. OFF ACC ON (+) (-) Connector Terminal BOSE speaker amp. M113 1 Ground Battery voltage Battery voltage Battery voltage
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 subwoofer (BOSE system) harness connector B11 terminal 5 and BOSE speaker amp. (with BOSE) harness connector M113 terminal 17 and ground.
Continuity should exist.
OK or NG
OK: Inspection End.
NG >>
- Check connector housings for disconnected or loose terminals.
- Repair harness or connector.