Power Supply And Ground Circuit Inspection

WARNING: This page is about a different car, the 2003 Nissan Murano. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FUSE
Check for blown combination meter and unified meter and A/C amp. fuses.

Fig 1: Power Supply And Ground Circuit Inspection - Checking Fuse
Courtesy of NISSAN MOTOR CO., U.S.A.

Refer to WIRING DIAGRAM - METER - .

OK or NG
1. OK : GO TO 2.
2. NG : If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to FUSES & CIRCUIT BREAKERS - MURANO .
CHECK POWER SUPPLY CIRCUIT
1. Disconnect combination meter connector and unified meter and A/C amp. connector.
2. Check voltage between combination meter harness connector terminals and ground.
  
  Fig 2: Terminal Voltage Based On Ignition Switch Position
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 3: Checking Voltage Between Combination Meter And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
3. Check voltage between unified meter and A/C amp. harness connector terminals and ground.
  
  Fig 4: Terminal Voltage Based On Ignition Switch Position
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 5: Checking Voltage Between Unified Meter And A/C Amp. And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK : GO TO 3.
2. NG : Check the following.
  - Harness for open or short between combination meter and fuse
  - Harness for open or short between unified meter and A/C amp. and fuse
CHECK GROUND CIRCUIT
1. Check continuity between combination meter harness connector terminals and ground.
  
  Fig 6: Checking Continuity Between Combination Meter And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 7: Terminal Connector Continuity
  Courtesy of NISSAN MOTOR CO., U.S.A.
2. Check continuity between unified meter and A/C amp. harness connector terminals and ground.
  
  Fig 8: Check Continuity Between Unified Meter And A/C Amp. And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 9: Terminal Connector Continuity
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK : INSPECTION END
2. NG : Repair harness or connector.