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Home >> Infiniti >> 2016 >> QX50 RWD >> Repair and Diagnosis >> Electrical >> Gauges >> Meter, Warning Lamp & Indicator (Symptom Diagnosis & Removal And Installation) >> Symptom Diagnosis >> The Oil Pressure Warning Lamp Does Not Turn Off >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK OIL PRESSURE WARNING LAMP

    Perform auto active test. Refer to DIAGNOSIS DESCRIPTION .

    Does oil pressure warning lamp blink?

    YES 

    GO TO STEP 2  .

    NO 

    Replace combination meter.

  2. CHECK IPDM E/R OUTPUT VOLTAGE

    1. Disconnect the oil pressure switch connector.
    2. Turn ignition switch ON.
    3. Check voltage between the oil pressure switch harness connector and ground.
      Terminals Voltage
      (+) (-)
      Oil pressure switch Ground
      Connector Terminal
      F37 1 Approx. 12 V

    Is the inspection result normal?

    YES 

    GO TO STEP 3  .

    NO 

    GO TO STEP 4  .

  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.

  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.