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, Replacing
- Country-specific laws make adaptation of the Transmission Control Module (TCM) to the vehicle necessary. This "writing" function is not possible with the generic scan tool, therefore it is necessary to use the VAS5052 in On Board Diagnostic (OBD) function for this purpose.
- Procedure for replacing Transmission Control Module: → 38 - AUTOMATIC TRANSMISSION - GEARS, HYDRAULIC CONTROLS for 6 SPD. AUTOMATIC TRANSMISSION 09E ALL WHEEL DRIVE or 38 - AUTOMATIC TRANSMISSION - GEARS, HYDRAULIC CONTROLS for 6 SPD. AUTOMATIC TRANSMISSION 09L ALL WHEEL DRIVE
Final Procedures
After connecting connections to control module, the following steps must be carried out in the order described:
- Retrieve DTC memory Mode 3: Check DTC memory.
- If necessary, erase DTC memory Mode 4: Reset/erase diagnostic data.
- If DTC memory was erased, generate readiness code.
- End diagnosis and switch ignition off.
Use the Manual With the Right Hardware
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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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