Windows: Testing and Inspection

STANDARD PROCEDURE - CLEAR/RELEARN

NOTE: The battery must be fully charged or the vehicle running for proper calibration of the front door module.

NOTE: The following procedure must be performed anytime the power window system has been serviced in either front door or, there is a possible concern with a door module calibration.
Express-up / Express-down possible concerns.
- Glass will not lower all the way down flush to the belt-line.
- Glass will not raise fully; wind noise / water leak.
- Glass will not raise automatically (Express-up) after lifting the switch to the second detent and releasing.

To clear/denormalize the door module memory, perform the following procedure:

CLEAR/DENORMALIZE

1. Check and repair any door module Diagnostic Trouble Code (DTC)(s) before proceeding.
2. Using a scan tool, under the miscellaneous functions menu select (Denormalize Window/Reset ECU), and follow the directions to clear/denormalize the door module memory.
To relearn/normalize the door module memory, perform the following procedure:

RELEARN/NORMALIZE

NOTE: The battery must be fully charged or the vehicle running before proceeding.

1. If needed, place the vehicle battery on charge or have the engine running.
2. To relearn/normalize the door module, start by raising the door glass to the full-up position by pulling up on the window switch to its second detent and hold the switch until the door glass is fully closed. Continue to hold the window switch up for two seconds after the door glass is full closed.
3. Lower the door glass to the full-down position by pushing down (depress) the window switch to its second detent and hold the switch until the door glass is fully open. Continue to hold the window switch down for two seconds after the door glass is fully open.
4. Check the operation of the express-up and express-down features.
5. If the express up does not work, repeat the procedure starting at step #2, waiting for three seconds after the window stops.
6. Check that the door glass reverses when in the express-up mode by holding a pen in the path of the glass.
7. Recheck and repair any door module DTC's as needed