Side Door Window Mechanical Diagnosis
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 GMC Yukon XL, 2012 GMC Yukon, 2012 Chevrolet Tahoe, 2012 Chevrolet Suburban, and 2012 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
Side Door Window Mechanical Diagnosis
| Cause | Correction |
|---|---|
| DEFINITION: A mechanical condition that requires a correction for proper operation of the side door window. Refer to Symptoms - Fixed and Moveable Windows prior to beginning this table. |
|
| Intermittent Operation | Check proper glass alignment/attachment and door seal installation. |
| Check switch and switch bezel to see if sticking. | |
| Check wire harness for pinched/shorted wire. | |
| THIS STEP APPLIES TO ALL TWO PIN MOTOR CONNECTORS ONLY. Perform electrical diagnostics, by first applying 12 volt power supply to the regulator motor to verify motor function. | |
| Glass Binds | Check proper glass alignment/attachment. |
| Check for defective seal and/or proper seal installation. | |
| Check for debris in glass run channel. | |
| Check for glass run channel position. | |
| Regulator/Glass Rattles | Check for loose fasteners and retorque if required. |
| Check that the glass is in the channel and reinstall if not positioned correctly. | |
| Noisy Operation | Check for other components in the glass path such as wire harness, impact foam, lock rods, or cables. |
| Check for proper glass alignment/attachment and door seal installation. | |
| Windnoise | Check seals, mirror patch, and glass alignment. |
| False glass reversal, the glass goes down unexpectedly. | Check seals, reinitialize the glass and/or realign the glass. |
| Check for debris in the glass run channel. | |