Central Control Module: Service and Repair
WM 903519 Removing and installing gateway control unit
Tools
Preliminary work
Preliminary work for gateway control unit
Remove wiper linkage. -> 92191900 Removing and installing wiper linkage - section on "Removing" Service and Repair
If the control unit is being replaced, read out the values from the control unit before removal. -> 903519 Removing and installing gateway control unit - section on "Coding"
Removing gateway control unit
Information
The gateway control unit is located underneath the plenum panel.
Installation position of gateway control unit shown on the 997
1. Switch off ignition and remove ignition key.
2. Unscrew the three fastening screws -1- on the cover.
Removing cover
3. Turn the cover and control unit around.
4. -A- Pull (unclip) the gateway control unit out of the cover at the connector side.
Removing gateway control unit
5. -B- Pull the gateway control unit to the left out of the holder.
6. Release electric connector -A- and pull it off the gateway control unit.
Releasing electric connector
Installing gateway control unit
1. Push on electric connector until it engages securely on the gateway control unit.
Connecting electric connector
2. Check the seal on the cover and replace seal or cover and seal if necessary.
Checking seal on cover
3. Slide the gateway control unit into the cover -B- and clip it in -A-.
Installing gateway control unit
4. Fit the cover and secure with the three fastening screws -1-.
Installing cover
5. If a new gateway control unit has been installed, it must be coded on the vehicle. -> 903519 Removing and installing gateway control unit - section on "Coding"
Subsequent work
Subsequent work for gateway control unit
Install wiper linkage. -> 92191900 Removing and installing wiper linkage - section on "Installing" Service and Repair.
If the control unit was replaced, read out the values from the control unit. -> 903519 Removing and installing gateway control unit - section on "Coding"
Coding gateway control unit
Information
If the gateway control module is replaced, the gateway control module must be coded using the PIWIS tester 9718. This is to adapt the Gateway control module to the vehicle and equipment.
If possible, before the gateway control module is removed and replaced, a read-out of the vehicle data should be obtained from the Porsche System Tester.
During coding, 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.
The Porsche System Tester instructions take precedence and in the event of a discrepancy these are the instructions that must be followed. Deviations may occur with later software versions.
The procedure described here has been structured in general terms; different text or additions may appear in the Porsche System Tester.
1. Connect the Porsche System Tester to the vehicle and start the System Tester. Switch on the ignition. >> Continue.
2. Select vehicle type using the cursor keys.
3. Move from vehicle type to the list of control units >>.
4. Select Gateway 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 "Reading code" will appear on the screen of the Porsche System Tester. Press the >> key.
8. Switch off ignition and replace gateway control unit. -> 903519 Removing and installing gateway control unit - section on "Removing"
9. System Tester displays Coding write-in complete. Press the >> key.
10. Follow the instructions on the Tester.
11. Quit menu, switch off ignition, lock then unlock vehicle and read out fault memory once more.
If faults are present, proceed in accordance with the Diagnosis Manual. => "Rep. Gr. 9035 Gateway control unit "
12. In the Gateway menu, select Required & actual configuration and press >>.
13. Check the list for both Required and Actual for the same + or -. If there are deviating specifications, first check if the components are installed on this vehicle.
14. If necessary, change to the Coding menu, and select the non-matching components (e.g., Tyre pressure monitoring system) and code the components with F8.
15. In the Gateway menu, select Required & actual configuration and press >>. Then check the list once again.
16. Read out and erase fault memory.
Manually coding with the tester
Information
If the "old" control module can no longer be read out, the coding must be performed "manually" with the PIWIS tester 9718. This is to adapt the Gateway control module to the vehicle and equipment.
During coding, 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.
The Porsche System Tester instructions take precedence and in the event of a discrepancy these are the instructions that must be followed. Deviations may occur with later software versions.
The procedure described here has been structured in general terms; different text or additions may appear in the Porsche System Tester.
1. Connect the Porsche System Tester to the vehicle and start the System Tester. Switch on ignition. >> Continue.
2. Select vehicle type using the cursor keys.
3. Move from vehicle type to the list of control units >>.
4. Select Gateway with the cursor keys and press the >> key.
5. Select the Coding menu >>.
6. Select the individual systems/components in turn and code the vehicle-dependent equipment with F8.
7. In the Gateway menu, select Required & actual configuration >>.
8. Check the list for both Required and Actual for the same + or -. If there are deviating specifications, first check if the components are installed on this vehicle.
9. If necessary, change to the Coding menu, and select the non-matching components (e.g., Tyre pressure monitoring system) and code the components with F8.
10. In the Gateway menu, select Required & actual configuration >> and check the list once again.
11. In the menu Vehicle type, select Control units and then select the menu Special functions.
12. PerformVehicle handover and follow the instructions of the tester.
13. Read out and erase fault memory.