Power Supply And Ground Circuit Check

CHECK FUSE
Check for blown combination meter fuses

Fig 1: Power Supply And Ground Circuit - Combination Meter Fuse Check
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 malfunction before installing new fuse. Refer to "POWER SUPPLY ROUTING ".
CHECK POWER SUPPLY CIRCUIT
1. Disconnect combination meter connector M29 (QR25DE) or M29 and M30 for (QG18DE).
2. Check voltage between combination meter harness connector terminals and ground.
  (QG18DE WITHOUT TACHOMETER)
  
  Fig 2: Combination Meter Harness Connector Terminals And Ground Voltage Specifications (QG18DE Without Tachometer)
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 3: Checking Voltage Between Combination Meter Harness Connector Terminals And Ground (QG18DE Without Tachometer)
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  (QG18DE WITH TACHOMETER)
  
  Fig 4: Combination Meter Harness Connector Terminals And Ground Voltage Specifications (QG18DE With Tachometer)
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 5: Checking Voltage Between Combination Meter Harness Connector Terminals And Ground (QG18DE With Tachometer)
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  (QR25DE)
  
  Fig 6: Combination Meter Harness Connector Terminals And Ground Voltage Specifications (QR25DE)
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 7: Checking Voltage Between Combination Meter Harness Connector Terminals And Ground (QR25DE)
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK : GO TO 3.
2. NG : Check the following.
  - Harness for open between combination meter and fuse
CHECK GROUND CIRCUIT
Check continuity between combination meter harness connector terminals and ground.

(QG18DE WITHOUT TACHOMETER)

Fig 8: Combination Meter Harness Connector Terminals And Ground Continuity Specifications (QG18DE Without Tachometer)
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 9: Checking Continuity Between Combination Meter Harness Connector Terminals And Ground (QG18DE Without Tachometer)
Courtesy of NISSAN MOTOR CO., U.S.A.

(QG18DE WITH TACHOMETER)

Fig 10: Combination Meter Harness Connector Terminals And Ground Continuity Specifications (QG18DE With Tachometer)
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 11: Checking Continuity Between Combination Meter Harness Connector Terminals And Ground (QG18DE With Tachometer)
Courtesy of NISSAN MOTOR CO., U.S.A.

(QR25DE)

Fig 12: Combination Meter Harness Connector Terminals And Ground Continuity Specifications (QR25DE)
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 13: Checking Continuity Between Combination Meter Harness Connector Terminals And Ground (QR25DE)
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK : Inspection End.
2. NG : Repair harness or connector.