Circuit/System Testing
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
Ignition ON, command the appropriate power window DOWN and UP with a scan tool. The power window should go DOWN and UP as commanded.
- If the DTC is current and the power window is inoperative, replace the power window motor.
- If the DTC is history and the power window performs the UP and DOWN functions, clear the DTC.
B320A 42, B320B 42 or B320C 42
Reprogram the appropriate power window and operate the power window within the conditions for running the DTC, verify the DTC does not reset.
- If the DTC resets, replace the power window motor.
B320A 4B, B320B 4B or B320C 4B
Command the appropriate power window motor fully DOWN by pressing and holding the window switch for 5 seconds, then command the power window motor fully UP by lifting and holding the window switch for 5 seconds. Operate the power window within the conditions for running the DTC, verify the DTC does not reset
- If the DTC resets, replace the power window motor.