So I've been in-and-out of the service center for 4 weeks now. They have spent 40+ hours diagnosing, replacing a myriad of parts and still haven't been able to fully repair my FWD issue. It's frustrating because the issue is only repeatable *if the car has been sleeping overnight, and you try to open via one of the FWD*. After an overnight sleep, if you first go in the car through the driver door and open the FWD via the screen, it operates as intended -- no reboot happens.
As you can see from the video, the door will openly slightly and then reboot (same reboot as holding down the 2 buttons on steering wheel). It takes a full 2 minutes to reboot and will ask you to recalibrate the doors afterwards.
SC has been able to replicate and has replaced the FWD ECU and 2 different sets of upper spine modules. They have inspected all grounding wires, tested voltages and signals across all the FWD harnesses. They are exhausted and so am I.
I have a mobile service appt to replace my 12v battery tomorrow. 4 years old and approx 60k miles. My theory is that the 12v battery is on its last legs and when it tries to open the FWD door for the first time after sitting, it may not have enough juice and fails -- hence a reboot. The MCU is asking me to calibrate the doors every time. I know that some forum members have unplugged and plugged the 12v terminals to forcefully trigger a FWD calibration. This is my own theory and none of the technicians or the manager at the SC have suggested replaement of 12v or provided feedback on what to do next. If this doesn't solve it, I may need to go to a different SC for a 2nd opinion.
At worst, I proactively replace the 12v before getting factory replacement alerts. At best, the 12v battery is the culprit and solves my FWD problem.
I'm looking for feedback from the forum on what you think may be the issue is or if anyone has experience with this. Technicians and SC manager have pretty much given up on me at this point and are stumped on the cause.
As you can see from the video, the door will openly slightly and then reboot (same reboot as holding down the 2 buttons on steering wheel). It takes a full 2 minutes to reboot and will ask you to recalibrate the doors afterwards.
SC has been able to replicate and has replaced the FWD ECU and 2 different sets of upper spine modules. They have inspected all grounding wires, tested voltages and signals across all the FWD harnesses. They are exhausted and so am I.
I have a mobile service appt to replace my 12v battery tomorrow. 4 years old and approx 60k miles. My theory is that the 12v battery is on its last legs and when it tries to open the FWD door for the first time after sitting, it may not have enough juice and fails -- hence a reboot. The MCU is asking me to calibrate the doors every time. I know that some forum members have unplugged and plugged the 12v terminals to forcefully trigger a FWD calibration. This is my own theory and none of the technicians or the manager at the SC have suggested replaement of 12v or provided feedback on what to do next. If this doesn't solve it, I may need to go to a different SC for a 2nd opinion.
At worst, I proactively replace the 12v before getting factory replacement alerts. At best, the 12v battery is the culprit and solves my FWD problem.
I'm looking for feedback from the forum on what you think may be the issue is or if anyone has experience with this. Technicians and SC manager have pretty much given up on me at this point and are stumped on the cause.
