Description

The oil pressure warning lamp remains illuminated while the engine is running (normal oil pressure).

Diagnosis Procedure

1.CHECK OIL PRESSURE WARNING LAMP

Perform auto active test. Refer to PCS-12, "Diagnosis Description" (with I-KEY) or PCS-43, "Diagnosis Description" (without I-KEY).

Is oil pressure warning lamp blinking? YES >> GO TO 2.

NO >> GO TO 5.

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 and ground.

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 MWI-56, "Component Inspection".

Is the inspection result normal? YES >> Replace IPDM E/R. Refer to PCS-34, "Removal and Installation" (with I-KEY) or PCS-63, "Removal and Installation" (without I-KEY).

NO >> Replace oil pressure switch. Refer to EM-330, "Disassembly and Assembly" (K9K).

4.CHECK OIL PRESSURE SWITCH SIGNAL CIRCUIT

Check the oil pressure switch signal circuit. Refer to MWI-56, "Diagnosis Procedure".

Is the inspection result normal? YES >> GO TO 5.

NO >> Repair harness or connector.

5.CHECK COMBINATION METER INPUT SIGNAL

Connect CONSULT-III and perform an input signal check for the combination meter. Refer to MWI-56, "Component Function Check".

Is the inspection result normal? YES >> Replace combination meter. Refer to MWI-69, "Removal and Installation".

NO >> Replace IPDM E/R. Refer to PCS-34, "Removal and Installation" (with I-KEY) or PCS-63, "Removal and Installation" (without I-KEY).