Neutral Safety Switch

1984 Plymouth Horizon Base, 1.6 ASECTION Neutral Safety Switch
WARNING: This page is about a different car, the 1984 Plymouth Voyager, 1984 Dodge Mini Ram Van, and 1984 Dodge Caravan. However, it is still accessible from the selected car via links, so may be relevant.
  1. With transmission linkage properly adjusted, switch should allow starter operation in Park and Neutral only. To test switch, remove wire connector and test for continuity between center pin of switch and case. Continuity should exist only when transmission is in "P" or "N".
  2. Check for continuity between 2 outer pins. Continuity should exist with transmission in Reverse, only. There should be no continuity between either outside pin and the transmission case.
    NOTE: Ensure gearshift linkage is properly adjusted before replacing a switch that tests bad.
  3. To replace, remove switch from case and allow fluid to drain. Move selector lever to Park and Neutral positions and check that switch operating fingers are centered in switch opening. Install new switch and seal. Retest switch for continuity and add transmission fluid.
    Fig 1: Back-Up Light/Neutral Safety Switch
    G35241

    When installing new switch, tighten to 24 ft. lbs. (33 N.m).

RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.