VOLVO
BCM-U30004B - Control Module. System Internal Failures. Over temperature
System
Brake Control Module (BCM)
Volvo models this fault code applies to
Applies to the following models:
1 modelV60 (2011–)
Show models by year and engine (2)
What does this fault code mean?
The BCM monitors the temperature inside its housing. The code is set when the signal from the temperature sensor is implausible. The fault normally lies in the module and may be temporary, and no action other than clearing is needed if the code does not return.
Possible causes
- Internal fault in the brake control module
What you can do
- 1Switch the ignition on and read the codes in the brake control module
- 2Clear the code; no other action is needed if it does not return
- 3After a road test, check that the code does not return, and have a workshop check the brake module if it does
- 4The brake system is safety-critical, so have a workshop carry out any intervention in the brake control module
Symptoms you may notice1
- No noticeable symptoms for the driver
General guidance for car owners. Diagnosis on the car can point to a different cause.