Preliminary Checks
Confirm concern. Ensure battery is fully charged. Ensure window in question is properly aligned. Check the following for possible cause of malfunction:
- Damaged guide or regulator mechanism.
- Malfunctioning window motor. See POWER WINDOW MOTOR under COMPONENT TESTING.
- Malfunctioning switch. See MASTER SWITCH and/or SINGLE SWITCH under COMPONENT TESTING.
- Open or shorted circuit.