LEMON Manuals: Even more car manuals for everyone
Home >> Porsche >> 2021 >> Taycan Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Entertainment Systems >> 91 Radio, On-Board Computer Park Assist -- Y1A - TAYCAN (Y1A) >> WM, 917755 Replacing Control Unit For Multi-Function Steering Wheel >> Replacing Control Unit For Multi-Function Steering Wheel

Replacing Control Unit For Multi-Function Steering Wheel

NOTE: NOTIFICATION 
Voltage drop 
  • Irreparable damage to control unit 
  • Damage to control unit 
  • Fault entries in the control unit 
  • Control unit programming/coding is aborted 
  • Malfunctions in the control unit, even during programming/coding 
    • Switch off ignition before disconnecting the control unit.
    • Make sure that the power supply is not interrupted during programming/coding.
    • Connect the battery charger with at least > current 90 A  to the vehicle battery.

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 battery charger to the jump-start terminal and start it.
  2. Connect the Tester to the vehicle and start it. Establish operational readiness on the vehicle.
  3. Place original remote control in emergency start tray.
    G15566605Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Emergency start tray

  4. Select the vehicle type if necessary.
  5. Select the Gateway  control unit in the overview.  Press F12 to continue. The message "Create Vehicle Analysis Log (VAL)?" appears. Press F11 to continue.
  6. Select Coding/programming  .
  7. Automatic programming  must now be selected. Press F12 to continue.
    1. 7.1  The Tester displays the message: Coding successfully performed.
  8. Go back to the overview. 
  9. Read out all fault memories  , process and delete existing faults if necessary.
  10. Exit the diagnostic application. End operational readiness on the vehicle. Disconnect the Tester from the vehicle.
scientia non olet · About LEMON Manuals