Testing Components and Functions - DSA

Resetting The Wheel Adaptation

If, for example, a tire is suddenly punctured while driving or the air pressure in a tire rapidly deviates, there will be deviation between the wheels. The DSA control module adaptation will then quickly adapt the wheel speed to even out the speed of all wheels. This is so the DSA control module can base its calculation on the same wheel speed levels.

When the punctured tire is repaired, or the air pressure returns to normal, the wheel adaptation values will no longer be correct. Before the DSA control module has had time to re-adapt the wheel speed, the anti-spin control may start slightly earlier or later than normal. If these symptoms occur, the wheel adaptation must be reset and the car test driven. This is in order to give the DSA control module the chance to adapt the wheel speed signals.







- Ignition on.
- Use the Reset adaptation function to reset the wheel adaptation.

Test drive the car: Drive slowly. Then accelerate rapidly for approximately 4 seconds. Then release the accelerator pedal (AP) quickly. Let the car engine brake for approximately 4 seconds. Repeat this one more time.

The wheel speed signals have now been adapted.