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Parking Assist Control Module: Service and Repair



Removing And Installing Control Module For ParkAssist

Tools







Removing control module for ParkAssist

NOTE: If the ParkAssist control unit has to be replaced, the values from the control unit should first be read out using the PIWIS Tester 9718.







1. Push control unit forwards in direction of travel from behind, unclip it, detach it and turn the holder 180 degrees.







2. Push together the retaining tabs for the control unit and pull the two catches back. Lift control unit up and out.







WARNING:
Risk of damage to electronic control modules.
- If care is not taken, electrical and electronic components may be destroyed.
- Before removing the control module, switch off the ignition and remove the ignition key.







3. -A- Carefully lever the connector away from the control unit using two screwdrivers.
4. -B- Carefully lever the connector away from the control unit using one screwdriver.

Installing control module for ParkAssist

NOTE: If the ParkAssist control unit has to be replaced, the values from the control unit should first be read out using the PIWIS Tester 9718.

1. Press electrical connectors -A, B- into control unit until they are felt to engage.







2. Position control unit on its holder, press it in and clip it into the holder.







3. Turn the bracket by 180 degrees into the direction of travel, attach it at the front and clip it into place at the rear.







Programming control unit for ParkAssist

Reading out and writing values for ParkAssist 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.

NOTE:
- The PIWIS tester 9718 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 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 ParkAssist 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.
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 Codes successfully written in. Press .>>".
14. Change to the Coding menu and compare the coding with the vehicle equipment. Recode if necessary.
15. Quit menu, carry out a test drive, and read out fault memory.

Coding control unit for ParkAssist

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.

NOTE:
- The PIWIS tester 9718 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 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 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 ParkAssist with the cursor keys and press the .>>" key.
8. Select Coding and press the .>>".
9. Select Vehicle type and code with .F8".
Vehicle type
997
987

10. Select Volume and code with .F8".
Volume
Loud
Quiet

11. Take a test drive, read out the fault memory and erase it if necessary.
12. ParkAssist has now been taught.
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