VOLVO
BCM-C008217 - Brake system malfunction indicator. General electrical malfunction. Voltage too high
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 that the voltage to it is too high. The most common cause is a fault in the charging system. The brake control module may then switch off the ABS and stability functions to protect itself.
Possible causes
- Fault in the charging system
What you can do
- 1Start the engine and let it idle. Check that the voltage is normal, and if it is too high, check the charging system
- 2Read and note the code, clear it and road test the car to see whether it returns
- 3Check the charging system with diagnostic equipment, as the fault often lies there
- 4The braking system is safety critical: do not work on the braking system yourself; leave this to a workshop, and drive carefully until the fault is fixed
Symptoms you may notice4
- General warning lamp on
- ABS warning lamp on
- ABS, anti-spin and stability function do not work
- Anti-skid function does not work
What the fault can affect2
- ABS, traction control, stability control and brake assistance are blocked
- Active yaw control (AYC) is blocked
General guidance for car owners. Diagnosis on the car can point to a different cause.