Convertible Top Control Module: Service and Repair
WM 619619 Removing and installing convertible top control unit
Tools
Technical values
Preliminary work
1. Move convertible top to service position.
2. Removing cover over the motor
2.1. To loosen the carpet, pull out the plastic clips using special tool 21 and take out the carpet. Disassembly tool, universal Nr.21
3. If the control unit must be replaced, then read out the values from the control unit before removal. PIWIS Tester 9718 => 619619 Removing and installing control unit for convertible top - "Programming" section
Removing convertible top control unit
Information
If the control unit for the convertible top must be replaced, first the values must be read from the control unit using the PIWIS tester 9718. => 619619 Removing and installing convertible top control unit - section on "Programming"
1. Unscrew both fastening screws -1- for the convertible top control unit.
Unscrewing fastening screws
2. Remove control module, disengage the connector housing -arrow A- to the right, and pull it down and off. Press plug connection -arrow B- together and pull it down and off. Disengage plug connection -arrow C- upward and to the right, and pull it down and off.
Unplugging electrical connector
Installing convertible top control unit
Installing control unit for hood
Information
If the control unit for the convertible top must be replaced, first the values must be read from the control unit using the PIWIS tester 9718. => 619619 Removing and installing convertible top control unit - section on "Programming"
1. Join electric plug connections -arrow C- and engage the locking lever downward. Connect the plug connection -arrow B-. Join plug connection -arrow A- and press the plug housing to the left until it engages. Lay lines carefully (do not trap).
Plugging in electric plug connections
2. Position the control unit and secure with both fastening screws -1-. => Tightening torque: 4.8 Nm (3.5 ftlb.)
Tightening fastening screws
Subsequent work
1. Reinstall the carpet over the motor.
2. Take convertible top out of the service position.
3. Write the read out values with the PIWIS Tester 9718. => 619619 Removing and installing convertible top control unit - section on "Programming"
Programming convertible top control unit
Reading out and writing values for convertible top control unit
NOTICE
Voltage drop
- Risk of irreparable damage to control unit
- Risk of damage to control unit
- Fault entries in the control unit
- Coding in the control unit is aborted
- Malfunctions in control unit, even during programming
-> Prior to disconnecting the control unit, switch off the ignition and remove the ignition key.
-> Ensure that the power supply is not interrupted during programming.
-> Connect a battery charger with a current rating of at least => Nominal value: 40 A to the vehicle battery.
NOTICE
Voltage drop
- Risk of irreparable damage to control unit
- Risk of damage to control unit
- Fault entries in the control unit
- Coding in the control unit is aborted
- Malfunctions in control unit, even during programming
-> Prior to disconnecting the control unit, switch off the ignition and remove the ignition key.
-> Ensure that the power supply is not interrupted during programming.
-> Connect a battery charger with a current rating of at least => Nominal value: 40 A to the vehicle battery.
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 ignition. >> Continue.
2. Select the vehicle type.
3. Switch from the vehicle type to the list of control units.
4. Select convertible top with the cursor keys and press the >> key.
5. Select Control unit replacement with the cursor keys and press the >> key.
6. Select Read out values (codings) with the cursor keys and press the >> key.
7. The message Codes successfully read out appears on the screen of the Porsche System Tester. Press >>.
8. Switch off ignition and replace control unit.
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. In the menu Write in data >> , the data read-out is installed.
13. System Tester displays Coding write-in complete >>.
14. Change to the Coding menu and compare the coding with the vehicle equipment. Recode if necessary.
15. Leave menu and read out fault memory.
Coding convertible top control unit
NOTICE
Voltage drop
- Risk of irreparable damage to control unit
- Risk of damage to control unit
- Fault entries in the control unit
- Coding in the control unit is aborted
- Malfunctions in control unit, even during programming
-> Prior to disconnecting the control unit, switch off the ignition and remove the ignition key.
-> Ensure that the power supply is not interrupted during programming.
-> Connect a battery charger with a current rating of at least => Nominal value: 40 A to the vehicle battery.
NOTICE
Voltage drop
- Risk of irreparable damage to control unit
- Risk of damage to control unit
- Fault entries in the control unit
- Coding in the control unit is aborted
- Malfunctions in control unit, even during programming
-> Prior to disconnecting the control unit, switch off the ignition and remove the ignition key.
-> Ensure that the power supply is not interrupted during programming.
-> Connect a battery charger with a current rating of at least => Nominal value: 40 A to the vehicle battery.
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. Connect the PIWIS tester 9718 to the vehicle and start it. Switch on the ignition. >> 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 convertible top with the cursor keys and press >>.
8. Select Coding and press the >>.
9. Calibrate convertible top. => 619619 Removing and installing control unit for convertible top - "Calibrating" section
10. Carry out a convertible top operation and read out fault memory.
Calibrating the convertible top
Information
- The convertible top opens and closes automatically during convertible-top calibration with the PIWIS tester 9718. Calibration can be started irrespective of whether the convertible top is open or closed. The latching hook in roof frame 1 does not close during calibration. There must not be any objects in or on the convertible top to obstruct this.
1. Connect and switch on the PIWIS tester 9718.
2. Switch on ignition.
3. Select the menu item Convertible top , Drive links , and select Calibrate menu item in the command line which then appears.
4. Start calibration with the F7 key.