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.
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HOMESERVICE MANUALSPLYMOUTH1984HORIZON BASE, 1.6 AREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 81 (SERVICING - A/T)ADJUSTMENTSNEUTRAL SAFETY SWITCH ADJUSTMENTSTESTING
1984 Plymouth Horizon Base, 1.6 A
Neutral Safety Switch Adjustments: Testing
1984 Plymouth Horizon Base, 1.6 ASECTION Testing
WARNING: This page is about a different car, the 1990 Plymouth Voyager, 1990 Plymouth Grand Voyager, 1990 Dodge Grand Caravan, 1990 Dodge Caravan, and 1990 Chrysler Town & Country. However, it is still accessible from the selected car via links, so may be relevant.
- With transaxle linkage properly adjusted, switch should allow starter operation in "P" and "N" only. To test switch, remove wire connector and test for continuity between switch center pin and transaxle case. Continuity should exist only when transaxle is in "P" or "N".
- Check for continuity between 2 outer pins. Continuity should exist with transaxle in "R" position only. There should be no continuity between either outside pin and the transaxle case.
- To replace neutral safety switch, remove switch from case and allow fluid to drain. Move selector lever to "P" and "N" positions and check that switch operating fingers are centered in switch opening. Install new switch and seal. Tighten to 24 ft. lbs. (33 N.m). Retest switch for continuity and transaxle fluid.
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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.