VOLVO
BCM-C004428 - Brake Pressure Sensor "A". General Signal Failures. Signal bias level out of range / zero adjustment 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 (BCM) has compared the stored zero point (offset) of the brake pressure sensor with the value saved on the previous drive, and the difference is unreasonable. The fault most often comes from a damaged sensor, but it can also come from the module itself.
Possible causes
- Damaged pressure sensor
- Internal fault in the brake control module
What you can do
- 1Read and note the code, clear it and road test the car to see whether it returns
- 2Check that brake pressure rises when the pedal is pressed, which a workshop can read with diagnostic equipment
- 3If the fault returns, the brake control module normally needs replacing by a workshop, and the acceleration sensor and internal sensors must then be calibrated afterwards
- 4The braking system is safety critical: do not work on the brake system yourself; leave this to a workshop, and drive carefully until the fault is fixed
Symptoms you may notice5
- Traction control warning lamp on
- Traction control does not work
- Stability function does not work
- Adaptive cruise control and collision warning do not work
- Electronic parking brake has reduced function
What the fault can affect2
- Active yaw control (AYC) is blocked
- Traction control, stability control and brake assistance can be disabled
General guidance for car owners. Diagnosis on the car can point to a different cause.