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Multiple GTW Errors After Extensive Repair - Unable to Charge - 20 MX Performance

Hi guys

Any help or feedback is greatly appreciated. Long story short I purchased a wrecked (rear end damage) clean title 20 MXP to repair and drive. I am in the repair business, and the repair itself went fairly smoothly although it was an extensive repair. The car was dead when I purchased (pyro fuse), I did not power it up due to the airbag deployment. After the repair, it powered up but is giving multiple error codes shown below.

GTW_f281 - Software update required
GTW_f210 - Service is required
GTW_f209 - Unable to charge
GTW_f208 - Unable to start vehicle
GTW_f015 - Software update required

The car sat after the accident for a bit, and then sat in my shop while being repaired for a total of 6 months or so. It is showing a range of 37 miles remaining. I have replaced the 12V battery. I was careful to check for short or wire damage when disassembling and reassembling. The only module replaced was the charge port housing/module. Safety Restore cleared the crash data from the SRS module. Initially it was trying to download an update, but it seemed to have failed to install. I repeatedly get the "update did not complete successfully. Please wait for a new update to be sent to your car" popup.

My next troubleshooting step is determining whether it is a hardware or software issue. Hoping someone here may have insight into that. I have a Toolbox 3 cable on order and that will be my next step.

Thanks in advance


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Figured I would add a little more info. I will continue to update the thread in case anyone else has a similar issue.

Firmware v10.2 2021.4.18.2
Unable to enter service mode from the screen.
I do hear contactors opening and closing, car remains powered up when 12V is disconnected so there is some HV.
Charge port will open and close, when charger is connected display reads charging stopped. Pressing start charging has no effect.
I have done several wheel change hard resets, no effect.

Unfortunately waiting a week or so for toolbox cable. I would like to try a gateway reboot and see if there is any change.
Not sure this will help, but the deepest reboot is changing the the wheel size on the screen. One time our 2020 wouldnt go into drive. Changing the wheel size rebooted something and we were able to proceed. Also I had an upgrade that kept failing. I did a wheel size reboot followed by a user initated software update and it took.
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Thanks for the tip!

I did make some progress on it for anyone encountering similar issues. Another user pointed me in the direction of the modules I changed out. I swapped them with the original from the door and swapped circuit board from original charger port and was able to start it but was still having charging issues.

It turns out even with the HV cover in place on the rear of the charger port the red safety lock MUST be pushed all the way in and locked, as there is a sensor on the board inside to detect it. If it's not locked you will get charge port codes. Hope this helps someone. Charging now :cool:
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