Nissan 31918-80X00 Neutral Safety Switch

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1. Raise the vehicle securely. 2. Disconnect the range sensor electrical connectors. 3. Place the shift lever in Neutral. 4. Remove the mounting bolts for the transaxle range sensor. 5. Install the new switch onto the control shaft, ensuring it remains in Neutral while tightening the bolts. 6. Adjust the range sensor as previously described. 7. Confirm that the engine starts only when the shift lever is in Neutral or Park.

Place the transaxle in Reverse and verify continuity between connector terminals 1 and 3. Then, put the transaxle in Neutral and verify continuity between terminals 2 and 4. Ensure there's no continuity between those terminal pairs in any other gear.

Unplug the switch electrical connectors and check continuity as follows:With the shift lever in Park, there should be continuity between terminals 1 and 2, and between terminals 3 and 4.With the shift lever in Reverse, there should be continuity between terminals 3 and 5.With the shift lever in Neutral, there should be continuity between terminals 1 and 2, and between terminals 3 and 6.With the shift lever in Drive, there should be continuity between terminals 3 and 7.With the shift lever in 2, there should be continuity between terminals 3 and 8.With the shift lever in 1, there should be continuity between terminals 3 and 9.