VW Up TCM Failure Causes Multiple Transmission Issues

I had a very similar transmission control issue with my 2015 VW Polo with the automatic transmission. Based on my experience working with several transmission repairs, these symptoms sound very familiar. The transmission control module failure caused nearly identical problems, erratic shifting, grinding noises, and emergency mode activation. The automotive ECU was throwing multiple error codes related to the gearbox issues. After taking it to a specialized transmission workshop, they performed comprehensive diagnostic testing on the control module. The tests confirmed that the transmission control unit was indeed defective and needed replacement. The entire repair process took about 3 days and cost 1000€, including programming and adaptation of the new module. The replacement completely resolved all the transmission-related problems. The gearbox started shifting smoothly again, and all error codes cleared up. To better assist with your situation, could you share: Current mileage on your Up, When these symptoms first appeared, Whether any transmission maintenance has been done before, The specific error codes from your diagnostic scan This information would help determine if your case matches what I experienced and whether the control module is likely the root cause.

I had my last service at 52000km, so fairly recent. The scanning tool revealed error codes P0722 and P0705, pointing to transmission control issues. The symptoms started appearing gradually over the past month. Initially just delayed shifts, then progressing to the grinding sounds and emergency mode. No previous transmission repair work has been done except routine maintenance. Your experience with the faulty transmission control module sounds very similar to what I am experiencing. The automatic gearbox symptoms and diagnostic codes align closely. This gives me more confidence that my transmission diagnosis is on the right track. I will contact a transmission repair specialist to conduct detailed testing of the control module. Having a ballpark cost estimate of around 1000€ for the repair helps with planning. Good to know the fix completely resolved your transmission issues.

Thanks for sharing those details about your VW Up. The error codes P0722 and P0705 match exactly what my transmission control module was showing before replacement. These codes typically indicate input/output speed sensor issues and range/position circuit problems in the transmission control system. The gradual progression of your automatic transmission problems mirrors my experience. The delayed shifting response came first, followed by the grinding and emergency mode activation. This pattern is a classic sign of a failing transmission control unit. After my repair was completed, I learned that moisture intrusion and electronic component aging are common causes of transmission control failures in these models. The specialized workshop also mentioned that attempting partial repairs often leads to recurring electronic issues. One tip from my experience: make sure the workshop performs a complete adaptation procedure after installing the new transmission control module. My repair initially had some minor shifting quirks until they redid the adaptation process properly. Have you noticed if the transmission problems get worse after the car sits overnight or in wet conditions? This could further confirm the diagnosis, as it was a telling symptom in my case.

The specific error codes and progression of symptoms you described really help confirm we are dealing with similar transmission control problems. Good point about checking if moisture affects the symptoms, I have noticed the shifting issues are actually worse after rainy days or morning dew. Based on the car computer diagnostic codes P0722 and P0705, along with your transmission repair experience, I feel confident moving forward with having the control module checked. The gradual progression from delayed shifts to grinding and emergency mode matches up perfectly with what you encountered. Your insight about proper adaptation after control module replacement is particularly valuable. I will make sure to discuss this specifically with the transmission repair shop. Also good to know about avoiding partial fixes that could lead to recurring electronic transmission problems. I will schedule an appointment with a specialized workshop to get comprehensive testing done. The 1000€ repair cost seems reasonable considering the complexity of transmission control module replacement and programming. Thanks for sharing your experience, it has been extremely helpful in understanding what I am dealing with.

I have a 2005 Fiat Punto automatic. For the last two months, when I stop the car at a traffic light or intersection, it jumps out of neutral.

(Translated from Greek)

I have a 2005 Fiat Punto automatic. For the last two months, when I stop the car at a traffic light or intersection, it jumps out of neutral.

(Translated from Greek)

Start by checking the transmission fluid level and condition, as low or dirty fluid can cause shifting issues. Ensure the fluid is at the correct level and appears clean. If the fluid is low, top it up with the recommended type for your vehicle. If it's dirty, consider a transmission fluid change. Let me know how it goes or if you have any further questions!

Start by checking the transmission fluid level and condition, as low or dirty fluid can cause shifting issues. Ensure the fluid is at the correct level and appears clean. If the fluid is low, top it up with the recommended type for your vehicle. If it's dirty, consider a transmission fluid change. Let me know how it goes or if you have any further questions!