Coding Control Unit For Electric Parking Brake

WARNING: This page is about a different car, the 2018 Porsche Macan and 2017 Porsche Macan. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION: Voltage drop

Risk of irreparable damage to control unit
Risk of damage to control unit
Fault entries in the control unit
Coding in the control unit is aborted
Malfunctions in control unit, even during programming

→ Prior to disconnecting the control unit, switch off ignition and remove ignition key.

→ Ensure that the power supply is not interrupted during programming.

→ Connect a battery charger with a current rating of at least → Nominal value: 40 A to the vehicle battery.

NOTE:

The PIWIS Tester 3 9900 instructions 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 PIWIS Tester 3 9900.

Connect the PIWIS Tester to the vehicle and start the PIWIS Tester. Switch on ignition and press F12 to continue.
Select the vehicle type and start the diagnostic application.
Select the required control unit, e.g. Parking brake in the overview.
Maintenance/repairs must then be selected.
Select Start-up and press F12 to continue.
Follow the instructions on the Tester.
The Tester displays the message Coding has been completed successfully. Press F12 to continue.
The Tester confirms that start-up was completed successfully. Press F12 to continue.
Read out the fault memory and erase it if necessary.
Check function of electric parking brake by actuating the lever. The LED in the button may flash after the first function test.
1. 10.1. If the LED in the button starts flashing after the first function test:
  1. 10.1.1. Perform a further function test. Check function of electric parking brake by actuating the lever.
Perform a test drive, check function of electric parking brake by actuating the lever and read out the fault memory.