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Test D - Oil Pressure Gauge Inaccurate

  1. Ensure engine oil pressure is okay. Perform OIL PRESSURE SENDING UNIT TEST under COMPONENT TESTING  . If sending unit is okay, go to next step. Replace sending unit if it fails test.
  2. Perform OIL PRESSURE GAUGE TEST  under COMPONENT TESTING. If oil pressure gauge is okay, go to next step. Replace oil pressure gauge if it fails test.
  3. Turn ignition off. Unplug 16-pin connector from instrument cluster. Measure resistance between Purple/Yellow wire at harness connector pin No. 6 and sending unit harness connector. Resistance should be less than 5 ohms. Measure resistance between Purple/Yellow wire at harness connector pin No. 6 and ground. If resistance is as specified, replace instrument cluster printed circuit. If resistance is not as specified, repair Purple/Yellow wire between instrument cluster and sending unit.
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