Power Supply Circuit Inspection

WARNING: This page is about a different car, the 2005 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.

Fig 1: Fuse Identification & Specifications
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK: GO TO 2.
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
1. Disconnect audio unit, subwoofer (with BOSE) or BOSE speaker amp. (with BOSE) connector.
2. Check voltage between the audio unit and ground.
  
  Fig 2: Connector M43 (Wire Terminal Color) Specification
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 3: Checking Voltage Between Audio Unit Connector Terminals 6, 10 & Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
3. Check voltage between subwoofer (BOSE system) and ground.
  
  Fig 4: Connector B11 Terminal (Wire Color) Specification
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 5: Checking Voltage Between Subwoofer (BOSE System) Connector Terminal 6 & ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
4. Check voltage between BOSE speaker amp. (with BOSE) and ground.
  
  Fig 6: Connector M113 Terminal (Wire Color) Specification
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 7: Checking Voltage Between Bose Speaker AMP (With Bose) Connector Terminal 1 & Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: GO TO 3.
2. NG:
  - Check connector housings for disconnected or loose terminals.
  - Repair harness or connector.
GROUND CIRCUIT CHECK
Check continuity between subwoofer (BOSE system) harness connector B11 terminal 5 (B) and BOSE speaker amp. (with BOSE) harness connector M113 terminal 17 (B) and ground.

Fig 8: Checking Ground Circuit
Courtesy of NISSAN MOTOR CO., U.S.A.

Continuity should exist.

OK or NG
1. OK: Inspection End.
2. NG:
  - Check connector housings for disconnected or loose terminals.
  - Repair harness or connector.