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 MANUALSPLYMOUTH1990VOYAGER SE, 2.5 J, AUTOMATICREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMENGINE CONTROLS - BASIC TESTING - 4-CYLFUEL SYSTEMAUTO SHUTDOWN (ASD) RELAY CHECK
1990 Plymouth Voyager SE, 2.5 J, Automatic
Auto Shutdown (ASD) Relay Check
1990 Plymouth Voyager SE, 2.5 J, AutomaticSECTION Auto Shutdown (ASD) Relay Check
NOTE:
If ASD relay is suspected of causing a fuel or ignition system malfunction, it will be necessary to use Diagnostic Readout Box (DRB-II) to diagnose ASD relay. See appropriate G - TESTS W/ CODES article.
When distributor signal is not present with ignition switch in RUN position, ASD relay turns off power to electric fuel pump, fuel injectors, ignition coil and O2 sensor heating element.
RENDER: 1.0x
NO RELATED
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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.