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Circuit Test (Montero Sport)

  1. Disconnect harness connector from oil pressure sending unit. Turn ignition on. Check voltage between ground and sending unit harness-side connector. If battery voltage is present, problem is intermittent. If battery voltage is not present, go to next step.
  2. Check sending unit harness connector. Repair as necessary. If connector is okay, check circuit (Yellow wire) between oil pressure gauge and oil pressure sending unit. See WIRING DIAGRAMS . Repair as necessary. If circuit is okay, go to next step.
  3. Remove multi-meter assembly. Check voltage between ground and harness-side connector terminal No. 10 (Red/Black wire). See WIRING DIAGRAMS . If battery voltage is present, problem is intermittent. If battery voltage is not present, go to next step.
  4. Check harness connector to multi-meter assembly. Repair as necessary. If connector is okay, check circuit between multi-meter harness connector and fusible link No. 6. See WIRING DIAGRAMS . Repair as necessary. If circuit is okay, go to next step.
  5. Turn ignition on. Check voltage between ground and multi-meter harness-side connector terminal No. 11 (Black/White wire). See WIRING DIAGRAMS . If battery voltage is present, problem is intermittent. If battery voltage is not present, go to next step.
  6. Check harness connector to multi-meter assembly. Repair as necessary. If connector is okay, check circuit between multi-meter assembly harness connector and ignition switch. See WIRING DIAGRAMS . Repair as necessary. If circuit is okay, go to next step.
  7. Turn ignition off. Check continuity between ground and multi-meter assembly harness-side connector terminal No. 3 (Black wire). If continuity is present, problem is intermittent. If continuity is not present, go to next step.
  8. Check harness connector to multi-meter assembly. Repair as necessary. If connector is okay, check circuit (Black wire) between multi-meter assembly harness connector and ground. See WIRING DIAGRAMS . Repair as necessary. If circuit is okay, problem is intermittent.
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