Body Control Module: Testing and Inspection
Removing And Installing Control Unit For Rear Convenience Systems
Tools
Preliminary work
Preparing control unit for comfort system rear
Refer to Removing and installing front seat
General warning notes
General warnings for rear convenience systems control unit
WARNING: Risk of damage and injury.
- If care is not taken, electrical and electronic components may be destroyed.
- Before removing the control unit for rear convenience systems, switch off the ignition and remove the ignition key.
Removing control unit for rear convenience systems
1. Push holder of control unit forwards in direction of travel from behind, unclip, detach and turn it through 180°.
WARNING: Risk of damage and injury.
- If care is not taken, electrical and electronic components may be destroyed.
- Before removing the control unit for rear convenience systems, switch off the ignition and remove the ignition key.
2. Release the three electrical plugs -a- and pull them away from the control unit.
3. Press the four retaining clips carefully back and take the control unit out of the holder.
4. Take out the control unit.
Installing control unit for rear convenience systems
1. Insert control unit into holder making sure the clips engage.
2. Press electric connectors into control unit until they are felt to engage.
3. Turn the holder through 180° into the direction of travel, engage at front and clip in at rear.
4. If a new control unit has been installed, continue under. Refer to Removing and installing control unit for rear convenience systems.
Subsequent work
Subsequent work on control unit for rear convenience comfort systems
Refer to Removing and installing front seat
Programming control unit for rear convenience systems
Reading from and writing to the rear convenience system 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. This may be due to more recent software versions.
- 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 Rear 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 >>.
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. Refer to Removing and installing control unit for rear convenience systems.
9. Switch to the Special functions menu and perform vehicle handover by pressing F8.
10. Erase all fault memories in the Special functions menu and press >>.
11. Carry out automatic search of control units.
12. Switch to the Write in data menu and press >> to load the data that was read out.
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. Exit the menu, carry out a test drive and read out the fault memory.
Coding control unit for rear convenience systems
Coding the control unit for rear convenience systems
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. This may be due to more recent software versions.
- The procedure described here has been structured in general terms; different text or additions may appear in the PIWIS Tester 9718.
- 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 vehicle handover by pressing F8.
4. Erase all fault memories in the Special functions menu and press >>.
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 Rear end and press the >>.
8. Select Coding and press the >>.
9. Select Automatic transmission and code with F8.
Automatic transmission
Installed
Not installed
10. Select Vehicle type and code with F8.
Vehicle type
Boxster (987)
911 (997)
11. Select Rear wiper and code with F8.
Rear wiper
Installed
Not installed
12. Select Targa roof and code with F8.
Targa roof
Installed
Not installed
13. Select Convertible top and code with F8.
Convertible Top
Installed
Not installed
14. Select Steel tilt/slide sunroof and code with F8.
Steel tilt/slide sunroof
Installed
Not installed
15. Select Spoiler function and code with F8.
Spoiler function
No
Yes
16. Select Country coding and code with F8.
Country coding
GB/Netherlands/Malta/Cyprus
USA/Mexico/Canada
Australia/New Zealand/Brazil
Belgium
RoW
17. Take a test drive, read out the fault memory and erase it if necessary.
18. Rear control unit is now taught.