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Inhibitor Switch System Test (240SX)

  1. Ensure inhibitor switch functions properly. See INHIBITOR SWITCH TEST (ALTIMA, NX 2.0L, SENTRA 2.0L, QUEST & 240SX). Ensure ignition is off. 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. 35 (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 and inspect A/T control harness connector for pushed-out, bent, damaged or corroded terminals. Repair connector as necessary. Check continuity between ECM harness connector terminal No. 35 (Green/Orange wire) and A/T control unit harness connector terminal No. 13 (Green/Orange wire). Continuity should exist. If continuity does not exist, repair open in Green/Orange wire. If continuity does not exist, recheck ECM and A/T control unit harness connectors and repair as necessary.