Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1994 Nissan-Datsun Sentra SE-R, StandardFACTORY OEM SERVICE PROCEDURE
Neutral Position Switch System Test
- Turn ignition off. Disconnect and inspect ECM 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 ground. Move shift lever through gears. Continuity should exist ONLY in Neutral. If continuity is not as specified, go to next step. If continuity is as specified, system is functioning properly.
- Turn ignition off. Disconnect and inspect Neutral position switch 2-pin harness connector for pushed-out, bent, damaged or corroded terminals. Connector is located on top of transaxle. Repair connector as necessary. Check continuity between Black wire of Neutral position switch 2-pin harness connector and ground. Continuity should exist. If continuity exists, go to next step. If continuity does not exist, repair open in Black wire or connectors.
- Check continuity between ECM harness connector terminal No. 35 (Green/Orange wire) and Green/Orange wire of Neutral position switch 2-pin harness connector. Continuity should exist. If continuity exists, check Neutral position switch. See NEUTRAL POSITION SWITCH TEST. If continuity does not exist, check harness and connectors for open. Repair as necessary.
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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