Diagnosis Procedure

The oil pressure warning lamp stays off when the ignition switch is placed ON.

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 OIL PRESSURE SWITCH SIGNAL CIRCUIT 

   Check the oil pressure switch signal circuit. Refer to Diagnosis Procedure .

   Is the inspection result normal?

   YES

   GO TO 3.

   NO

   Repair harness or connector.

3. CHECK OIL PRESSURE SWITCH UNIT 

   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.