[Tech II]

What you should do, is go to any GM dealer, and give them your VIN number, and ask them to check for any open recalls.....

Otherwise, clear all codes, drive vehicle, and see if the problem recurs again, and what codes are set....

There are a ton of TSB's on this problem and If the wiring checks out, and there is no water leak that is affecting the harness, you probably need a new electric motor...