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 MANUALSPLYMOUTH1994ACCLAIM V6-181 3.0L SOHCREPAIR AND DIAGNOSISTRANSMISSION AND DRIVETRAINAUTOMATIC TRANSMISSION/TRANSAXLECONTROL MODULEDESCRIPTION AND OPERATIONTCM OUTPUTSTRANSMISSION CONTROL RELAY
1994 Plymouth Acclaim V6-181 3.0L SOHC
Transmission Control Relay
1994 Plymouth Acclaim V6-181 3.0L SOHCSECTION Transmission Control Relay
The instant the ignition is turned "ON," the TCM performs a self-test to determine if its internal electronic circuits are all working properly. If the self-test results are good, then the TCM sends battery voltage to the Transmission Relay control circuit. The relay closes its internal contacts, which then supply battery voltage to the TCM, the four solenoids and the three pressure switches in the solenoid assembly. If the TCM "sees" a problem in the system, it turns off the power feed to the Transmission Control Relay, causing the contacts to open. A diagnostic trouble code is then stored in memory. The Transmission Control Relay is located in various places depending on the vehicle model.
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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.