Diagnosis Procedure

Regarding Wiring Diagram information, refer to "WIRING DIAGRAM - COUPE " or "WIRING DIAGRAM - SEDAN ".

1. CHECK OIL PRESSURE WARNING LAMP

   Perform IPDM E/R auto active test. Refer to "DIAGNOSIS DESCRIPTION ".

   Is oil pressure warning lamp illuminated? 

   YES: GO TO 2

   NO: Replace combination meter. Refer to "REMOVAL AND INSTALLATION ".

2. CHECK IPDM E/R OUTPUT VOLTAGE
   1. Turn ignition switch OFF.
   2. Disconnect the oil pressure switch connector.
   3. Turn ignition switch ON.
   4. Check voltage between the oil pressure switch harness connector F41 terminal 1 and ground.

      1 - Ground: Approx. 12V 

      Fig 1: Checking IPDM E/R Output Voltage

      Courtesy of NISSAN NORTH AMERICA, INC.

      Is the inspection result normal? 

      YES: GO TO 3

      NO: GO TO  4

3. CHECK OIL PRESSURE SWITCH

   Perform a unit check for the oil pressure switch. Refer to "COMPONENT INSPECTION ".

   Is the inspection result normal? 

   YES: Replace IPDM E/R. Refer to "REMOVAL AND INSTALLATION ".

   NO: Replace oil pressure switch.

4. CHECK OIL PRESSURE SWITCH SIGNAL CIRCUIT

   Check the oil pressure switch signal circuit. Refer to "DIAGNOSIS PROCEDURE ".

   Is the inspection result normal? 

   YES: Replace IPDM E/R. Refer to "REMOVAL AND INSTALLATION ".

   NO: Repair harness or connector.