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Home >> Nissan-Datsun >> 1993 >> Sentra SE-R, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Engine Sensors & Switches >> Neutral Position Switch System Test (300ZX)
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Neutral Position Switch System Test (300ZX)

  1. Turn ignition on. Check voltage between ECM harness connector terminal No. 44 (Yellow/Blue wire) and ground. Move shift lever through gears. Zero volts should be present in Neutral and 8-9 volts should be present in all other positions. If voltage is not as specified, go to next step. If voltage is as specified, system is functioning properly.
  2. Turn ignition off. Disconnect and inspect ECM harness connector for pushed-out, bent, damaged or corroded terminals. Repair connector as necessary. Disconnect and inspect Neutral position harness connector for pushed-out, bent, damaged or corroded terminals. Repair connector as necessary.
  3. Check continuity of Yellow/Blue wire between ECM harness connector terminal No. 44 and Neutral position switch harness connector. Continuity should exist. If continuity exists, check Neutral position switch. See NEUTRAL POSITION SWITCH TEST (PICKUP, 240SX & 300ZX). If continuity does not exist, repair open in Yellow/Blue wire or connectors.
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