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Home >> Nissan-Datsun >> 1995 >> Altima SE, Automatic, RE4F04A >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests 2.4L >> Engine Sensors & Switches >> Inhibitor Switch System Test

Inhibitor Switch System Test

  1. Ensure inhibitor switch functions properly. See procedures under INHIBITOR SWITCH  . Disconnect and inspect ECM harness connector for pushed-out, bent, damaged or corroded terminals. Repair connector as necessary. Turn ignition on. Check continuity between ECM harness connector terminal No. 22 (Green/Orange wire) and ground. Move shift lever through gears. Continuity should exist ONLY in Park and Neutral. If continuity is not as specified, go to next step. If continuity is as specified, system is functioning properly.
  2. Turn ignition off. Disconnect inhibitor relay. Relay is located in relay box, next to battery. Place shift lever in Neutral or Park. Turn ignition on. Measure voltage between ground and inhibitor relay connector terminal No. 1 (Green/Black wire). Battery voltage should be present. If battery voltage is present, go to step 5). If battery voltage is not present, go to next step.
  3. Turn ignition off. Disconnect inhibitor switch 8-pin harness connector. Connector is located on side of transaxle. Turn ignition on. Measure voltage between inhibitor switch 8-pin harness connector terminal No. 3 (Brown wire) and ground. Battery voltage should be present. If battery voltage is present, go to next step. If battery voltage is not present, check harness and connectors. Also check 10-amp fuse. Repair or replace as necessary.
  4. Turn ignition off. Check continuity between inhibitor relay connector No. 1 and inhibitor switch 8-pin harness connector terminals No. 4 and 6 (Green/Black wires). Continuity should exist in both checks. If continuity does not exist, check harness and connectors. Repair as necessary. If continuity exists, check inhibitor switch. See INHIBITOR SWITCH  .
  5. Turn ignition off. On vehicles equipped with cruise control, check continuity between ground and inhibitor relay connector terminals No. 2 and 7 (Black wires). On vehicles without cruise control, check continuity between ground and inhibitor relay connector terminals No. 2 and 5 (Black wires). Continuity should exist in all checks. If continuity does not exist in any check, repair harness or connectors. If continuity exists in all checks, go to next step.
  6. On vehicles equipped with cruise control, check continuity between ECM harness connector terminal No. 22 (Green/Orange wire) and inhibitor relay connector terminal No. 6 (Green/Orange wire). On vehicles without cruise control, check continuity between ECM harness connector terminal No. 22 (Green/Orange wire) and inhibitor relay connector terminal No. 3 (Green/Orange wire). Continuity should exist in all checks. If continuity does not exist in any check, repair harness or connectors. If continuity exists in all checks, check inhibitor relay. See RELAYS  under RELAYS & SOLENOIDS.
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