What changes
The ABS unit stores the current pressure as the reference — the same as the “SET” button in the menu. Needed after inflating, rotating or replacing wheels.
Details
For indirect pressure monitoring, which derives the pressure from the ABS sensors. Routine 0413 in the ABS unit with access code 20103 (fallback 40168). Takes a few seconds. A direct system with sensors in the wheels is reset from the car's menu.
Before you start
Takes about 1 min.
- Pressure in all wheels set according to the label on the door pillar
- Ignition on, car stationary