VOLVO
BCM-C004701 - Brake Booster Pressure Sensor. General Failure Information. General electrical 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 (16)
- 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–)2011–2012
- Volvo V60 (2011–)2013–2014All engines except: D82PHEV
- Volvo V60 (2011–)2015All engines except: D82PHEV, D87PHEV
- 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 vacuum pressure sensor in the brake booster gives the brake control module (BCM) a signal about the vacuum pressure. The sensor measures across two chambers, and the signals should agree. When they do not, the module has registered an electrical fault.
Possible causes
- Contact resistance or oxidation in the connections
- Open circuit in the signal wire
- Signal wire shorted to supply voltage or ground
- Damaged vacuum pressure sensor
What you can do
- 1Read and note the code, clear it and road test the car to see whether it returns
- 2Check that the battery is in good condition and that the fuses are intact
- 3Check the connector at the vacuum sensor and at the brake control module for contact resistance and oxidation
- 4Read the vacuum pressures with diagnostic equipment and replace the sensor if it is damaged
- 5The braking system is safety critical: do not work on the brake booster or sensor yourself; leave this to a workshop
Symptoms you may notice2
- Information lamp lit
- Yellow warning symbol and message in the display
General guidance for car owners. Diagnosis on the car can point to a different cause.