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jonas_lang10

T-Roc Steering Controls Dead: Electrical Fault Alert

Looking for help with my 2020 T-Roc, the multifunction steering wheel completely stopped working. None of the steering controls respond anymore and the error memory shows a related fault. Has anyone experienced similar connectivity problems with their steering wheel controls? The vehicle diagnostics confirmed an electrical fault, but I would like to know what specific repairs were needed in your cases before heading to the workshop. Would really appreciate if you could share what the control module diagnosis revealed and how it was ultimately fixed.

4 comment(s)

janalorenz1

I had a similar issue with my 2018 VW Golf GTI. Having some experience with basic car maintenance, I initially attempted basic troubleshooting but quickly realized this required professional attention. The symptoms were identical, complete failure of the multifunction steering wheel controls. The vehicle diagnostics revealed an electrical fault in the control module connection. The main issue was a damaged cable connection in the steering wheel, which caused intermittent failures before completely stopping. My workshop found that moisture had caused corrosion in one of the main connector pins. They had to replace the cable harness and reprogram the steering wheel control module. The entire repair took about 2 hours and cost 95€. Before offering more specific advice, could you share: Have you noticed any intermittent issues before the complete failure? Does your steering wheel make any unusual sounds when turning? Did you recently have any work done on the steering or airbag system? What specific error code is showing in your diagnostics? These details would help determine if your sensor issue matches what I experienced with my Golf.

jonas_lang10 (Author)

Thanks for sharing those details. My T-Roc also started with intermittent connectivity problems before complete failure. The malfunction indicator appeared occasionally at first, then became permanent last week. The steering controls completely stopped responding after my most recent service at 90533km. I notice a slight clicking sound when turning the wheel sharply left. Vehicle diagnostics showed error code B129900 related to an electrical fault in the steering wheel module. No recent work was done on airbags or steering systems before this issue appeared. Based on your experience, it sounds like I may be dealing with a similar wiring harness problem. This helps narrow down the potential repairs needed.

janalorenz1

Thanks for providing those additional details about your T-Roc. The clicking sound combined with error code B129900 strongly suggests a wiring harness issue, very similar to what I encountered with my Golf GTI. The timing of the failure after your service is noteworthy. In my case, the electrical fault in the control module also manifested shortly after routine maintenance. This could indicate the connectivity problem was exacerbated by movement or adjustment during service work. When my steering wheel controls failed, the repair shop found the wiring harness had several worn spots where it flexed during turning. The clicking sound you describe matches this scenario perfectly, its typically caused by damaged wires moving within the harness during steering movement. Given these matching symptoms and the same error code, I recommend having your wiring harness and control module connections inspected. My repair involved: Complete harness replacement, Control module reset and reprogramming, Testing all multifunction steering features, Clearing stored electrical fault codes The repair should cost similarly to what I paid (95€), unless additional components are damaged. Make sure they check the connector pins thoroughly for corrosion, as this was a key factor in my case.

jonas_lang10 (Author)

Thanks to everyone who contributed advice about my T-Roc steering wheel issue. After getting all these helpful details, especially about the wiring harness problems and control module diagnostics, I feel much better prepared for my workshop visit next week. The matching symptoms with the clicking sound and similar error codes really helped confirm the likely cause. I will specifically ask them to inspect the wiring harness connections and check for corrosion on the connector pins, given how this seems to be a common failure point. My multifunctional steering system has the exact same intermittent connectivity pattern described, so I expect a similar repair involving harness replacement and control module reprogramming will resolve it. The sensor issue appearing after recent service work also fits the pattern mentioned. Will update once the vehicle diagnostics confirm the exact problem and repairs are completed. Really appreciate all the technical insights shared here, definitely helped me understand what to expect at the workshop.

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