VOLVO
BCM-C002166 - Brake Booster Performance. Algorithm Based Failures. Signal has too many transitions / events
System
Bremssteuergerät (BCM)
Volvo-Modelle, für die dieser Fehlercode gilt
Gilt für folgende Modelle:
1 ModellV60 (2011–)
Modelle nach Baujahr und Motor anzeigen (2)
Was bedeutet der Fehlercode?
On the V60, the brake control module (BCM) has received too many signal changes from the brake booster's own test signal. The test signal is used both to calibrate the booster's performance and to monitor that it works. The fault is most often due to the weather: in very cold outside air the brake booster cannot be activated as it should.
Mögliche Ursachen
- Brake booster characteristics have changed due to varying outside temperature
Was Sie tun können
- 1Check whether the fault only appears in cold weather, when the cold brake booster is often the cause
- 2Drive the car for a while so that it warms up, then check whether the code returns
- 3If the code remains once the car is warmer, a workshop should read it with diagnostic equipment
- 4The braking system is safety critical: let a workshop decide when the car can be driven normally, and do not work on the brake booster yourself
Symptome, die Sie bemerken können4
- Traction control does not work
- Hill descent assist does not work
- Hill start assist does not work
- Front monitoring and adaptive cruise control do not work
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.