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MWI-96 < SYMPTOM DIAGNOSIS > THE OIL PRESSURE WARNING LAMP DOES NOT TURN OFF THE OIL PRESSURE WARNING LAMP DOES NOT TURN OFF Description INFOID:0000000009721316 The oil pressure warning lamp remains illuminated while the engine is running (normal oil pressure). Diagnosis Procedure INFOID:0000000009721317 1. CHECK OIL PRESSURE WARNING LAMP Perform auto active test. Refer to PCS-10, "Diagnosis Description" 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 terminal 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-52, "Component Inspection" Is the inspection result normal? YES >> Replace IPDM E/R. Refer to PCS-37, "Removal and Installation" NO >> Replace oil pressure switch. 4. CHECK OIL PRESSURE SWITCH SIGNAL CIRCUIT Check the oil pressure switch signal circuit. Refer to Is the inspection result normal? YES >> GO TO 5. NO >> Repair harness or connector. 5. CHECK COMBINATION METER INPUT SIGNAL Connect CONSULT and perform an input signal check for the combination meter. Refer to Is the inspection result normal? YES >> Replace combination meter. NO >> Replace IPDM E/R. Refer to PCS-37, "Removal and Installation" Terminals Voltage (Approx.) (+) ( − ) Oil pressure switch Ground Connector Terminal F63 1 12 V |