Was bedeutet der Fehlercode BCM-B11D408?

Diagnose und Fehlercodedefinition für BCM-B11D408 (Volvo V40 (2013–), Volvo V40 Cross Country (2013–)). Steuergerätereparatur bei OBD Tuning.

VOLVO

BCM-B11D408 - Low Speed Collision Mitigation By Braking Disabled. General Failure Information. Bus Signal / Message Failures

System

Bremssteuergerät (BCM)

Volvo-Modelle, für die dieser Fehlercode gilt

Gilt für folgende Modelle:

2 Modelle

V40 (2013–), V40 Cross Country (2013–)

Modelle nach Baujahr und Motor anzeigen (2)

Was bedeutet der Fehlercode?

The automatic braking at low speed, which is part of the forward monitoring, has been switched off. The fault is caused by interference or communication faults on the CAN network, for example another module disturbing the network or braking requests arriving too often.

Mögliche Ursachen

Short circuit between the CAN wires
Open circuit in one of the CAN wires
Internal fault in another control module on the same part of the CAN network
Internal fault in the module

Was Sie tun können

1Read the codes in the other modules on the CAN network and deal with them first
2Check the CAN wiring and connectors with diagnostic equipment
3If the fault remains, have a workshop find which module is disturbing communication
4The brake system is safety critical: do not work on the brake system modules yourself, and have a workshop repair the fault

Symptome, die Sie bemerken können1

Forward monitoring and automatic braking do not work

Was der Fehler beeinflussen kann2

Low speed automatic braking is disabled while the code is set
The module stays switched off until the power supply is interrupted, and on a new start it tries to communicate again

Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.