VOLVO
BCM-C008204 - Brake system malfunction indicator. General malfunction information. Internal error
System
Brake Control Module (BCM)
Volvo models this fault code applies to
Applies to the following models:
1 modelXC90 (2003–)
What does this fault code mean?
On the XC90, the brake control module (BCM) has registered an internal fault, for example interference or a break in the circuit to the hydraulic valves. The fault is often temporary, but while it is present, ABS and several stability functions are blocked.
Possible causes
- Interference or noise that has disturbed the module's calculations
- Internal fault in the brake control module
What you can do
- 1Read the codes and deal with any other codes first, as they may be linked
- 2Clear the code and check whether it returns. Check that the connector at the brake control module is secure and free from oxidation
- 3Check that the wiring is not too close to an interference source, such as a mobile phone
- 4If the fault returns, the brake control module needs replacing by a workshop
- 5The braking system is safety critical: do not work on the brake control module yourself; leave this to a workshop, and drive carefully until the fault is fixed
Symptoms you may notice5
- General warning lamp on
- ABS warning lamp on
- Brake circuit has failed and the warning lamp is on
- ABS does not work
- Anti-spin and stability function do not work
What the fault can affect2
- ABS and electronic brake force distribution are blocked
- Traction control, stability control, active yaw control and brake assistance are blocked
General guidance for car owners. Diagnosis on the car can point to a different cause.