Check Actuator Travel Of Brake Shoes
WARNING: This page is about a different car, the 2024 Porsche 911, 2023 Porsche 911, and 2022 Porsche 911. However, it is still accessible from the selected car via links, so may be relevant.
Information
The actuator travel of the brake shoes only needs to be checked for brake discs with an aluminum brake hub.
- Close electric parking brake using the button.
- Read out left/right actuator position.
- 2.1 > 9900 - PIWIS Tester 3 must now be connected. Then select Brake electronics (PSM) > Actual values/input signals > Left actuator position and right actuator position.
- If the value is greater than > Length 4.5 mm , perform calibration.