Replacing Central Control Unit For Assistance Systems

Information 

The terms "Ignition on" and "Starting engine" are re-defined for fully electric vehicles (battery electric vehicles - BEV).

Establishing operational readiness/Ignition on: 

Prerequisites for establishing operational readiness: High-voltage battery is sufficiently charged, remove vehicle charging cable from the vehicle charge port, put driver's key in the emergency start tray.

Establishing operational readiness automatically: Get into the vehicle and close the driver's door. The driver's key is recognized inside the vehicle. Operational readiness is established.

Establishing operational readiness manually: Press Start/Stop switch. The driver's key is recognized inside the vehicle. Operational readiness is established.

Establishing operational readiness/Starting engine: 

Establish operational readiness and engage transmission range. The vehicle is now ready to drive and can be moved.

Ending operational readiness/Switching off ignition 

Ending operational readiness automatically: Get out of the vehicle with the driver's key and close the driver door. The driver's key is no longer detected outside the vehicle. Operational readiness ends.

Ending operational readiness manually: Press Start/Stop switch until the instrument cluster is switched off.

Ending driving readiness/Stopping engine 

Vehicle is stationary: Press the P  button on the instrument cluster. The vehicle is parked.

Information 

Ensure the consistency of a combination of hardware and software versions 

After performing software updates, always make sure that the target software versions are also actually installed on the control units and that the system is therefore ensured.

This also applies in the case of hardware replacement.

See TI 9X00 Information on the software system for various control units in the vehicle (112/21)

Information 

The instructions in the Tester  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 additional information may appear in the Tester. 

1. Connect the Tester to the vehicle and start it. Establish operational readiness on the vehicle.
2. Place original remote control (hand-held transmitter) in emergency start tray.

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

   Emergency start tray.

3. Select the vehicle type if necessary.
4. Select the Assistance systems  control unit in the overview.  Press F12 to continue. The message "Create Vehicle Analysis Log (VAL)?" appears. Press F11 to continue.
5. Select Coding/programming. 
6. Automatic programming  must now be selected. Press F12 to continue.

   Programming can take a long time.

   1. 6.1  The Tester displays the message: Programming was completed successfully.
7. Go back to the overview.
8. In the overview,  press F7 to switch to the Additional menu. 
9. Select Commission component protection.  Follow instructions and procedure.
   1. 9.1  Read and follow the information and instructions on the Tester.
   2. 9.2  Select Gateway  (master) component protection. Press F12 to continue.
   3. 9.3  Perform procedure according to menu guidance.
   4. 9.4  The Tester displays the message: Component protection taught.  Press F12 to continue.
10. Press F11 to return to the overview. 
11. Teach combination sensor.
    1. 11.1  Select the Airbag  control unit in the overview. 
    2. 11.2  Select Maintenance/repairs. 
    3. 11.3  Select Teach combination sensor.  Press F12 to continue.
    4. 11.4  Read and follow the warnings and instructions displayed on the Tester. Press F8 to start.
12. If fitted: Calibrate rear spoiler.

    > 667455 REPLACING REAR SPOILER CONTROL UNIT

13. Read out the fault memory and delete any fault entries.
14. Exit the diagnostic application, switch off ignition and disconnect the Tester from the vehicle.