Circuit/System Verification
- Vehicle in Service Mode
- Verify the driver window functions while commanding the Driver Window Motor Up and Down with a scan tool.
- If the UP and DOWN does not work
Replace the M74D window motor - driver.
- If the UP and DOWN works
- If the UP and DOWN does not work
- Verify the driver window performs the Express Up and Express Down functions with the driver window switch.
- If the driver window does not Express Up and Express Down
Normalize the driver window motor, refer to Window Motor Programming - Express Function .
- If the driver window performs the Express Up and Express Down functions
- If the driver window does not Express Up and Express Down
- All OK.