VOLVO
BCM-B10DF46 - Master cylinder isolation valve. System Internal Failures. Calibration / parameter memory failure
System
Brake Control Module (BCM)
Volvo models this fault code applies to
Applies to the following models:
13 modelsC30 (2007–2013), C70 (2006–2013), S40 (2004–2013), S60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V50 (2004–2013), V60 (2011–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–)
Show models by year and engine (14)
- Volvo C30 (2007–2013)2011–2013Engine D4162T, D5204T, D5204T5 only
- Volvo C70 (2006–2013)2011Engine D5204T, D5204T5 only
- Volvo C70 (2006–2013)2012–2013All engines except: B5254T7
- Volvo S40 (2004–2013)2011–2012Engine D4162T, D5204T, D5204T5 only
- Volvo S60 (2011–)2011–2015
- Volvo S80 (2007–)2007–2015
- Volvo V40 (2013–)2013–2015
- Volvo V40 Cross Country (2013–)2013–2015
- Volvo V50 (2004–2013)2011–2012Engine D4162T, D5204T, D5204T5 only
- Volvo V60 (2011–)2011–2015
- Volvo V60 Cross Country (2015–)2015
- Volvo V70 (2008–)2008–2015
- Volvo XC60 (2009–)2009–2015
- Volvo XC70 (2008–)2008–2015
What does this fault code mean?
The brake control module is delivered calibrated from the factory and checks at start-up that its calibration data is correct. The code is set when the module lacks calibration data or when calibration has not been carried out. The fault may remain after a module has been replaced until it has been calibrated.
Possible causes
- The fitted brake control module lacks calibration data
- Calibration of the brake control module has not been carried out
- Damaged brake control module
What you can do
- 1Clear the codes in the brake control module and check whether the code returns
- 2If the code returns, a workshop should replace the brake control module
- 3After fitting, the acceleration sensor and the internal sensors of the brake control module must be calibrated; have a workshop do this
- 4The brake system is safety critical: do not work on the brake control module or its calibration yourself, and have a workshop repair the fault
Symptoms you may notice5
- Information lamp on
- Anti-spin does not work
- ABS does not work or switches on suddenly
- Hill start assist does not work
- Forward monitoring and adaptive cruise control do not work
General guidance for car owners. Diagnosis on the car can point to a different cause.