Both VW Jetta Power Windows Dead, Control Fault Alert

Had the same issue on a 2018 VW Passat GTE Hybrid. When both windows stopped working simultaneously, it pointed to a central electrical problem rather than individual window regulators. The main control unit in the driver door panel was the culprit. The window control module had failed, affecting both front windows. While the mechanic initially suspected separate window motors, diagnostic testing revealed the central switch module was not sending signals to the regulators. The repair involved: 1. Removing the door panel 2. Testing the window track system 3. Replacing the main window control module 4. Reprogramming the new unit 5. Testing all window functions This was not a minor issue since it involved electrical components and programming. Individual window regulator motor failures typically happen one at a time. When both stop working together, its usually the central control module. Your symptoms match exactly what happened in my case, complete failure of both windows simultaneously. Having the control module replaced by a certified shop is crucial since it requires proper programming to work with your cars systems.

Thanks for sharing your Passat experience. I never thought a central module could affect both windows at once. At first I suspected my window regulators had failed since I heard grinding noises before the complete failure. Did the repair hold up well over time? The window control issue seems similar to mine based on those symptoms. When the door panel was off, did they notice any other parts needing attention in the window mechanism? Really curious about the final cost too, since my quote seems steep and I want to make sure Im not being overcharged.

Glad to provide an update on my Passat window control repair. The fix has worked perfectly for over a year now. The grinding noise you mentioned was actually a symptom of the faulty window regulator not receiving proper signals from the control module. When the mechanic removed the door panel, they found the window mechanism itself was in good shape. The power windows started working immediately after replacing the defective control module. Total cost came to 200€ including labor, which was reasonable for the electrical work and programming required. Based on your similar symptoms, especially both windows failing simultaneously, it sounds like you are dealing with the same central control issue rather than individual window motor problems. Getting this fixed by a qualified shop was worth every cent, no more issues with the window regulators or controls since the repair. You are right to question high repair quotes, but make sure whoever does the work can properly program the new module. This job requires more than just mechanical skills.

After getting different opinions here and checking multiple shops, I finally had the window control issue fixed at a certified shop. The symptoms matched exactly what was described, it turned out to be the central control module in the driver door panel causing both power windows to fail. The automotive repair took about 3 hours. They removed the door panel, tested the window track system, and confirmed the window regulators were actually fine. The grinding noise stopped once they installed the new control module and programmed it properly. Total cost came to 280€ which seemed fair considering the electrical work and programming needed. Much better than the 800€ quote I got initially from that first shop. The power windows now work perfectly and the repair came with a 1-year warranty. Really glad I asked here first and learned about the central module issue. Saved me from potentially paying for unnecessary window regulator replacements. Having a good understanding of the likely problem helped me find the right shop for this specific repair.