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.
Transmission Control Module Malfunction Recognition
The control module is equipped with a DTC memory so that in the event of an electronic or electrical component failure or an open circuit, the malfunction can be determined quickly. Malfunction are recognized through electrical signals and stored in the DTC memory.
The control module recognizes malfunctions during vehicle operation and stores them in a DTC memory. See DIAGNOSTIC TROUBLE CODE (DTC) TABLE .
After analyzing the information the control module distinguishes between sporadic malfunctions and malfunctions present at this moment (static) and stores these.
If the malfunction is not present for a predetermined time or when driving over a longer distance, it is no longer recognized and becomes a sporadic malfunction.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.
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