COMBINATION METER: Diagnosis Procedure

Regarding Wiring Diagram information, refer to "WIRING DIAGRAM ".

1. CHECK FUSES 

   Check for blown combination meter fuses.

   Unit	Power source	Fuse No.
   Combination meter	Battery	19
   	Ignition switch ON or START	14
   	Ignition switch ACC or ON	4

   Is the inspection result normal? 

   YES: GO TO 2

   NO: If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.

2. POWER SUPPLY CIRCUIT CHECK 
   1. Disconnect combination meter connector M24.
   2. Check voltage between combination meter harness connector M24 terminals 1, 8, 24 and ground.

      Terminals			Ignition switch position
      (+)		(-)	OFF	ACC	ON	START
      Connector	Terminal
      M24	1	Ground	0V	Battery voltage	Battery voltage	0V
      	8		Battery voltage	Battery voltage	Battery voltage	Battery voltage
      	24		0V	0V	Battery voltage	Battery voltage

      Fig 1: Checking Voltage Between Combination Meter Harness Connector M24 Terminals 1, 8, 24 And Ground

      Courtesy of NISSAN NORTH AMERICA, INC.

      Is the inspection result normal? 

      YES: GO TO 3

      NO: Check harness for open between combination meter and fuse.

3. GROUND CIRCUIT CHECK 
   1. Turn ignition switch OFF.
   2. Disconnect combination meter connector M23.
   3. Check continuity between combination meter harness connector M23 terminal 52 and ground, and connector M24 terminal 9 and ground.

      Terminals			Continuity
      (+)		(-)
      Connector	Terminal
      A: M23	52	Ground	Yes
      B: M24	9

      Fig 2: Checking Continuity Between Combination Meter Connector M23 Terminal 52 And Ground

      Courtesy of NISSAN NORTH AMERICA, INC.

      Is the inspection result normal? 

      YES: Inspection End.

      NO: Repair or replace harness or connector.