You might want to try this.
ISSUE
Some 2005-2007 Mustang vehicles may exhibit issues with the functional power window features including one touch up, short drop, and bounce back. ACTION
Follow the Service Procedure steps to correct the condition if the root cause is incorrect or no window initialization of the Smart Window Motor. SERVICE PROCEDURE
Perform a de-initialization procedure of the smart motor! side window glass, followed by re-initialization procedure.
NOTE WINDOW RE-INITIALIZATION MUST BE PERFORMED WITH THE DOORS CLOSED. NOTE ON CONVERTIBLES, WINDOWS COULD BOUNCE BACK IF THE SIDE GLASS IS OUT OF ADJUSTMENT. REFER TO THE WORKSHOP MANUAL (WSM), SECTION 501-11. NOTE CHECK TO MAKE SURE THAT THE DOOR SEAL OR MIRROR SEAL IS NOT ROLLED OVER OR BINDING. ALSO, THAT THERE IS NO OBSTRUCTION IN GLASS SEALING AREA AND THE GLASS FIT AND/OR REGULATOR MECHANICAL FASTENING IS NOT LOOSE. DE-INITIALIZATION PROCEDURE
1. De-initialization (un-learning) of the smart window motor clears the memory of the module and shuts off the One-Touch UP, Bounce Back and Short Drop functions. 2. The smart window motors can be de-initialized in two (2) different ways: a. Disconnect the battery cable from the battery WHILE THE WINDOW IS MOVING. b. Remove the window motor fuse from the Power Distribution Box WHILE THE WINDOW IS MOVING. 3. After performing one of the above procedures, the smart motor must be re-initialized, see Initialization Procedure. INITIALIZATION PROCEDURE
1. INITIALIZATION MUST BE PERFORMED WITH THE DOOR CLOSED! (For convertibles, top and the quarter glass must be in the up / closed position.) 2. From the window switch, perform the following steps without stopping: a. Operate the window UP and stall for 2 seconds. (Hold The Switch) b. Operate the window DOWN and stall for 2 seconds. (Hold The Switch) c. The smart window motor will be initialized and one-touch-UP and Short Drop will be operational. d. Cycle the window glass an additional five (5) times to set the window "Soft Stop" for the down position. TIP - VOLTAGE RANGE OF OPERATION: 9-16 VOLTS (AT THE MOTOR)
^ The smart motor will ONLY function in the 9-16 volt range; if the voltage at the smart motor drops below 9 volts, the window may not function properly or prematurely stop moving ^ If the voltage drops below 9 volts while the motor is moving, the motor will become de-initialized (one-touch UP and Short Drop will be inoperable) ^ If the motor becomes de-initialized due to low voltage, see initialization procedure. for instructions
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2005 Mustang GT | 
