OIL PRESSURE SWITCH INSPECTION

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1. Verify that the oil pressure warning light illuminates when the ignition switch is at the ON position.

2. Verify that the oil pressure warning light goes out when the engine is started.

  • If the oil pressure warning light does not illuminate or remains illuminated, inspect the BCM and related wiring harness.
    ― If the BCM and related wiring harness are normal, inspect the oil pressure. (See OIL PRESSURE INSPECTION [MZI-3.7].)
      • If the oil pressure is normal, replace the oil pressure switch.