Power Window Motor: Testing and Inspection

Window Motor Initialization

NOTE: Initialization is required to learn both the full up and full down positions of the glass as it travels through the glass channel. Once initialized, obstacle detection is enabled.

NOTE: For MKZ only, the front window motor must be de-initialized, then initialized whenever the front window motor is removed from the window regulator drum housing, a new window regulator is installed, a new window glass is installed, a new top run is installed or for any operation in which grease or lubricants are applied to the window regulator or glass run.

NOTE: A new (original factory setting) or de-initialized LH or RH front window motor will not operate in one-touch up mode until initialized. If a new LH or RH front window motor has been installed, proceed to the initialization procedure.

NOTE: If diagnosing a LH or RH front window switch problem, perform the window initialization procedure before replacing the window switch.

NOTE: All LH or RH front window components (window glass, window regulator, window motor, seals and glass top run) must be installed and tightened to specification before carrying out the initialization procedure.

NOTE: Excessive bounce-back (window reverses direction with no obstructions present) may indicate that a de-initialization procedure may need to be performed.

De-Initialization procedure

1. Turn the ignition key ON.

2. Operate the window control switch in one-touch mode and remove power from the window motor while the window is moving by one of the following methods:

1. Disconnect the vehicle battery cable while the window is moving.

2. Disconnect the window motor connector while the window is moving.

3. Remove the LH or RH front window motor fuse while the window is moving.

3. This will de-initialize the window motor and reset the window motor to its original factory settings.

4. Perform the initialization procedure to turn the one-touch up feature on.

Initialization procedure

NOTE: The LH or RH front window must be in the full OPEN position for this procedure to operate correctly.

NOTE: If the initialization procedure is only partially completed, the LH or RH front window motor will remain un-initialized and will operate only in proportional up/down and one-touch down modes.

5. Turn the ignition key ON.

6. Activate and hold the window control switch in the UP position at the second detent until the window glass stalls for 2 seconds into the glass top run and release the switch.

7. Activate and hold the window control switch in the DOWN position at the second detent until the window glass stalls for 2 seconds at the bottom of its travel and release the switch.

8. Test for correct window operation by carrying out the one-touch up and one-touch down features.