Conditions for Clearing the DTC
WARNING: This page is about a different car, the 2011 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
B320A 39, B320B 39, B320C 39
If the DTC is current, the appropriate window motor must be replaced before the DTC can be cleared.
B320A 42, B320B 42, B320C 42
The affected power window motor must be programmed before the DTC can be cleared.
B320A 4B, B320B 4B, B320C 4B
The affected power window motor must be calibrated before the DTC can be cleared.