Thursday, 24 June 2010 21:04

It’s Friday and I can’t get the door glass to work!

Written by Tom McGee and Jeffrey Webster

Its Friday afternoon, the vehicle owner is expected to pick her car up in less that an hour. That’s when you discover that the door glass isn’t operating properly. Panic sets in. How do you fix it quickly?

With the ever-increasing use of electrical and electronic systems in today’s vehicles, we are seeing an increase in the number of systems that need to be reset or re-initialized. In some cases, there is some type of memory setting that can be programmed.

Technicians are quickly becoming responsible for recording the memory settings and returning them to where they were when the vehicle arrived at your facility. All these systems need to be reset/re-initialized following repairs.
Let’s take a look at the procedures required to re-initialize the glass door on three different vehicles.

2008 Acura TL V6-3.5L
Resetting the Power Window Control Unit
Resetting the driver’s or front passenger’s power window is required when any of the following have occurred:
•    Power window regulator replacement or repair
•    Power window motor replacement or repair
•    Window run channel replacement or repair
•    Door glass replacement or repair
•    Power is removed from a power window control unit while the power window timer is ON.

Using the Honda Diagnostic System (HDS)
1.    Connect the HDS to the vehicle’s DLC.
2.    Turn the ignition switch ON (II), then enter the vehicle’s VIN and mileage at the prompts.
3.    Select “Body Electrical” from the “System Selection” menu.
4.    From the “Body Electrical System Select” menu, select “Power Windows”.
5.    From the “Mode” menu, select “Adjustment”.
6.    From the “Adjustment” menu, select “Window P Reset” for driver’s side (passenger’s side) power window.
7.    Follow the prompts on the screen.
8.    Confirm that the power window control unit is reset by using the driver’s (passenger’s) power window AUTO UP and AUTO DOWN function.

Without the HDS
1.    Turn the ignition switch ON (II).
2.    Move the driver’s (passenger’s) power window all the way down by using the driver’s (passenger’s) power window DOWN switch.
3.    Open the driver’s (passenger’s) door. NOTE: Steps 4-7 must be done within 5 seconds of each other.
4.    Turn the ignition switch OFF.
5.    Push and hold the driver’s (passenger’s) power window DOWN switch.
6.    Turn the ignition switch ON (II).
7.    Release the driver’s (passenger’s) power window DOWN switch.
8.    Repeat step 4-7 three more times.
9.    Wait 1 second.
10.    Confirm that AUTO UP and AUTO DOWN do not work. If AUTO UP and DOWN work, go back to step 1.
11.    Move the driver’s (passenger’s) power window all the way down by using the driver’s (passenger’s) power window DOWN switch.
12.    Pull up and hold the driver’s (passenger’s) power window UP switch until the power window reaches the fully closed position, then continue to hold the switch for 1 second.
13.    Confirm that the power window control unit is reset by using the driver’s (passenger’s) power window AUTO UP and AUTO DOWN function. If the power window still does not work in AUTO, repeat the procedure several times, paying close attention to the 5 second time limit between steps. If it still does not work, go to B-CAN System Diagnosis Test Mode A. See: Powertrain Management\Computers and Control Systems\Information Bus\Testing and Inspection\Diagnostic Trouble Code Tests and Associated Procedures\B-CAN System Diagnosis Test Mode A.

2009 Cadillac CTS AWD V6-3.6L
Express Window Programming and Setup
Anytime battery power is lost or if the power window motor is replaced, the express down and express up features must be relearned.
Follow the procedure below to program the power windows:
•    Ignition ON, lower each window to the full down position and hold each window switch at the full down position for 5 seconds.
•    Raise each window to the full up position and hold each window switch at the full up position for 5 seconds.
•    Verify that the express down and express up feature are working by pressing the power window switch past its first detent and releasing and pulling the power window switch past its first detent and releasing. If the express down and express up functions are successfully relearned, the power window should roll completely down and roll completely up.

2008 Lexus Truck LX 570 V8-5.7L (3UR-FE)
WINDOW / GLASS: POWER WINDOW CONTROL SYSTEM: CUSTOMIZE PARAMETERS
1.    CUSTOMIZING FUNCTION WITH TECHSTREAM (REFERENCE)
NOTICE:
•    When the customer requests a change in a function, first make sure the function(s) can be customized. •    Be sure to make note of the current settings before customizing.
•    When troubleshooting a function, first make sure that the function is set to the default setting.
A.    Connect the Techstream to the DLC3.
B.    Turn the engine switch on (IG).
C.    Turn the Techstream on.
D.    Enter the following menus: Customize Setting.
E.    Select the setting by referring to the table below.

INITIALIZE POWER WINDOW CONTROL SYSTEM (POWER WINDOW REGULATOR MOTOR (ALL DOORS) CAUTION:
When the power window regulator motor is reinstalled or replaced, the power window control system must be initialized. Functions such as the auto up/down, jam protection and key-off do not operate if the initialization is not performed.
HINT: When the battery is replaced, it is not necessary to initialize the power window regulator motor.
NOTICE: When the power window regulator motor is replaced, DTC B2313 is output. Clear the DTC after the initialization.
When performing initialization, do not perform any other procedures.
After a door glass or a door glass run has been replaced, the jam protection function may operate unexpectedly when the auto up function is used, due to detection of a value different from the operation learned value of the door glass movement speed. In such cases, the auto up function can be resumed by repeating the following operation at least 5 times:
1.    Open the power window by fully pushing down the power window switch.
2.    Close the power window by fully pulling up the power window switch and holding it at the auto up position.
•    If the initialization is not completed properly, the LIN communication system may have a malfunction See: Powertrain Management\Computers and Control Systems\Testing and Inspection\Diagnostic Trouble Code Descriptions\LIN Communication System.
A.    Initialization procedures when replacing the power window regulator motor with a new one:
1)    Connect the battery and turn the engine switch on (IG) (at this time, the LED on the power window switch blinks to indicate that it is ready for initialization).
2)    Fully open the window by fully pushing the power window switch, and hold the switch for 1 second or more after the window is fully opened.
3)    Fully close the power window by fully pulling the power window switch, and hold the switch for 1 second or more after the window is fully closed to reset the glass position. The LED on the power window switch stops blinking and illuminates to indicate that the initialization is complete.
B.     Initialization procedures when removing/installing the power window regulator motor:
1)    Connect the battery and turn the engine switch on (IG).
2)    Fully close the power window by fully pulling the power window switch, and hold the switch for 6 seconds or more after the window is fully closed (if the power window does not move or stops halfway even when the switch is fully pulled, release the switch and fully pull it again).
3)    Fully open the window by pushing down the power window switch, and hold the switch for 1 second or more after the window is fully opened.
4)    Release the power window switch. Then fully push and hold the switch for 4 seconds or more.
5)    Fully close the power window by fully pulling the power window switch, and hold the switch for 1 second or more after the window is fully closed to reset the glass position and complete the initialization.
C.    Initialization procedures when the power window does not fully open:
1)    Connect the battery and turn the engine switch on (IG).
2)    Fully close the power window by fully pulling the power window switch, and hold the switch for 6 seconds or more after the window is fully closed (if the power window does not move or stops halfway even when the switch is fully pulled, release the switch and fully pull it again).
3)    Fully open the window by pushing down the power window switch, and hold the switch for 1 second or more after the window is fully opened.
4)    Release the power window switch. Then fully push and hold the switch for 4 seconds or more.
5)    Fully close the power window by fully pulling the power window switch, and hold the switch for 1 second or more after the window is fully closed to reset the glass position and complete the initialization.
While this article focused on reinitializing door glass, there are a variety of different systems that require these types of procedures, such as sun roofs, steering angle sensors, power doors, etc. Collision repair facilities must have access to the correct procedures to ensure that, when it’s Friday afternoon and the vehicle owner expects to take delivery of her vehicle, she can happily drive away without any delays.
For more information on OE repair information, please visit:
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©2010 ALLDATA LLC. All rights reserved. All technical information, images and specifications are from ALLDATA Collision. ALLDATA is a registered trademark and ALLDATA Collision is a mark of ALLDATA LLC. All other brand names and marks are the property of their respective holders.
Acura, Acura TL and Honda are registered trademark names and model designations of  Honda Motor Company, LTD. and/or American Honda Motor Co., Inc. Cadillac and Cadillac CTS are registered trademark names and model designations of  General Motors. Lexus, LX 570 and Techstream are registered trademark names and model designations of  Toyota Motor Sales, U.S.A., Inc. All trademark names and model designations are being used solely for reference and application purposes.

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