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Home >> Jeep >> 1987 >> Comanche Base, 2.1 B >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Servicing - A/T >> Adjustment >> Neutral Safety Switch

Neutral Safety Switch

  1. Switch combines functions of neutral safety switch and back-up light switch. With transmission linkage properly adjusted, switch should allow starter operation in "P" and "N" only.
  2. To test switch, remove wire connector and test for continuity between center pin of switch and case. Continuity should only exist when transmission is in "P" or "N".
  3. Check for continuity between 2 outer pins. Continuity should exist with transmission in "R" only. There should be no continuity between either outer pin and transmission case. If any of these conditions are not met, the switch should be replaced.
  4. To replace switch, unscrew from case. Move selector lever to "P" and "N" positions and check that switch operating fingers are centered in switch opening. Install switch and new seal in case. Check fluid level and add as needed.
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