Power Window Motor: Service and Repair
WM 645419 Removing and installing power window motor
Tools
Technical values
Preliminary work
Preliminary work for power window motor
-> 705919 Removing and installing door trim panel - section on "removing" 705919 Removing and installing door panel
Removing power window motor
Installation position shown on the 997
1. If a new power window motor is to be installed, read out the values first. -> 645419 Removing and installing power window motor - section on "Installing"
Switch off ignition and remove ignition key.
Information
On "newer" power window motors, the wire harness from the door wiring harness is clipped in on the power window motor.
- Use a screwdriver to unclip the wire harness from the clip above the power window motor.
A new connector concept is used on "newer" power window motors. Procedure:
- Release (pull out) the red lock on the connector using a screwdriver.
- Release the locking lug underneath and pull the connector off the power window motor.
2. Unlock electric connector -a- and disconnect from power window motor.
Release and remove connector -a-.
3. Unscrew the three fastening screws -1-.
Unscrewing fastening screws -1-
4. Pull the power window motor out of the teeth.
Installing power window motor
Information
On "newer" power window motors, the wire harness from the door wiring harness is clipped in on the power window motor.
- Clip in wire harness on the power window motor.
1. Position power window motor and push into the teeth.
2. Screw in the three fastening screws. => Tightening torque: 3 Nm (2 ftlb.)
Screwing in fastening screws -1-
3. Press in electric connector on power window motor until it engages securely.
Plugging in connector
Information
The end positions of the power windows are deleted from the control unit when the electric connectors are disconnected and connected.
4. Operate rocker switch and fully close window once.
5. Operate rocker switch to close again. The upper end position of the side window is stored.
6. Operate rocker switch and fully open window once.
7. Operate rocker switch to open again. The lower end position of the side window is stored.
8. If a new power window motor has been installed (door control unit), this must be programmed/coded. -> 645419 Removing and installing power window motor - section on "Programming"; -> 645419 Removing and installing power window motor - section on "Coding".
Subsequent work
Subsequent work for window power motor
-> 705919 Removing and installing door trim panel - section on "installing" 705919 Removing and installing door panel
Programming power window motor (door control unit)
Reading from and writing to the power windows motor (door control unit)
WARNING
Sudden voltage interruption of the power supply to the control module.
- Destruction of the control module.
-> During programming, it is essential to guarantee the power supply for the Porsche System tester. It is essential to connect a battery charger with a current rating of at least 40 A to the vehicle battery.
-> Prior to disconnecting the control module, switch off the ignition and remove the ignition key.
Information
The PIWIS Tester 9718 instructions take precedence since the description may be different with later Tester releases.
The procedure described here has been structured in general terms; different text or additions may appear in the PIWIS Tester 9718.
1. Connect the Porsche System Tester to the vehicle and start the System Tester. Switch on the ignition and press >> to continue.
2. Select vehicle type using the cursor keys.
3. Switch from the vehicle type to the list of control units.
4. Select Door and press the >> key.
5. Select Control unit replacement using the cursor keys and confirm by pressing >>.
6. Select Read out values (codings) with the cursor keys and press the >> key.
7. The Porsche System Tester displays the message Coding read-out complete >>.
8. Switch off ignition and replace control unit. -> 64541900 Removing and installing window regulator motor - section on "Removing"
9. Switch to the Special functions menu and perform the vehicle handover using the F8 key.
10. In the Special functions menu, erase All fault memories by pressing >>.
11. Carry out automatic search of control units.
12. Switch to the menu Write in data >> , the data read-out is installed.
13. System tester displays the message Coding write-in complete >>.
14. Change to the Coding menu and compare the coding with the vehicle equipment. Recode if necessary.
15. Read out fault memory and, if necessary, erase it.
Coding power window motor (door control unit)
WARNING
Sudden voltage interruption of the power supply to the control module.
- Destruction of the control module.
-> During programming, it is essential to guarantee the power supply for the Porsche System tester. It is essential to connect a battery charger with a current rating of at least 40 A to the vehicle battery.
-> Prior to disconnecting the control module, switch off the ignition and remove the ignition key.
Information
The PIWIS Tester 9718 instructions take precedence since the description may be different with later Tester releases.
The procedure described here has been structured in general terms; different text or additions may appear in the PIWIS Tester 9718.
Information
The procedure described must be applied when a control unit has to be replaced and the tester function Control unit replacement cannot be used.
1. PIWIS Tester 9718 must be connected to the vehicle before starting it. Switch on the ignition and press >> to continue.
2. Select the vehicle type.
3. Switch to the Special functions menu and perform the vehicle handover using the F8 key.
4. In the Special functions menu, erase All fault memories by pressing >>.
5. Carry out automatic search of control units.
6. Using the >> key, move from the vehicle type to the list of control units.
7. Select Door and press >>.
8. Select Coding and press >>.
9. Memory via radio must be selected. Perform coding by pressing F8.
10. Mirror memory function must be selected. Perform coding by pressing F8.
11. Lock with Safe function must be selected. Perform coding by pressing F8.
12. Synchronous mirror adjustment must be selected. Perform coding by pressing F8.
13. Mirror lowering must be selected. Perform coding by pressing F8.
14. Comfort closing must be selected. Perform coding by pressing F8.
15. Comfort opening must be selected. Perform coding by pressing F8.
16. Door inner handle in normal driving must be selected. Perform coding by pressing F8.
17. Manual transmission must be selected. Perform coding by pressing F8.
18. Read out fault memory and erase it if necessary.
19. Door control unit is now taught.