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 ground and ECM harness connector terminal No. 35 (Blue/Black wire). 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.
- Disconnect and inspect neutral position switch 2-pin harness connector for pushed-out, bent, damaged or corroded terminals. Connector is located on transmission extension housing. 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 Black wire or connectors.
- Check continuity between ECM harness connector terminal No. 35 (Blue/Black wire) and neutral position switch 2-pin harness connector. Continuity should exist. If continuity exists, check neutral position switch. See NEUTRAL POSITION SWITCH . If continuity does not exist, check for open harness and connectors. Repair as necessary.