VOLVO
BCM-0068 - Sensor power supply. Faulty signal
System
Brake Control Module (BCM)
Volvo models this fault code applies to
Applies to the following models:
10 modelsC30 (2007–2013), C30 Electric (2011–2013), C70 (2006–2013), S40 (2004–2013), S60 (2001–2009), S80 (1999–2006), V50 (2004–2013), V70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)
Show models by year and engine (21)
- Volvo C30 (2007–2013)2007–2011
- Volvo C30 (2007–2013)2012All engines except: D4162T, D5204T, D5204T5
- Volvo C30 (2007–2013)2013Engine B4204S3, B4204S4, B5254T7 only
- Volvo C30 Electric (2011–2013)2011–2013
- Volvo C70 (2006–2013)2006–2011
- Volvo C70 (2006–2013)2012–2013Engine B5254T7 only
- Volvo S40 (2004–2013)2004–2010
- Volvo S40 (2004–2013)2011–2012All engines except: D4162T, D5204T, D5204T5
- Volvo S60 (2001–2009)2002–2009
- Volvo S80 (1999–2006)2002–2006
- Volvo V50 (2004–2013)2004–2010
- Volvo V50 (2004–2013)2011–2012All engines except: D4162T, D5204T, D5204T5
- Volvo V70 (2000–2008)2002–2008
- Volvo V70 XC / XC70 (2001–2007)2002–2007
- Volvo XC90 (2003–)2003–2004, 2015
- Volvo XC90 (2003–)2005–2006All engines except: B8444S
- Volvo XC90 (2003–)2007Engine B5254T2, D5244T4 only
- Volvo XC90 (2003–)2008–2010All engines except: B6324S, B8444S
- Volvo XC90 (2003–)2011All engines except: B6324S5, B8444S
- Volvo XC90 (2003–)2012All engines except: B6324S5
- Volvo XC90 (2003–)2013–2014Engine B5254T9 only
What does this fault code mean?
Applies only to cars fitted with DSTC. The brake pressure sensors and the pedal position sensor share a common supply inside the brake control module. If the module detects that the supply voltage to one of the sensors is wrong, the code is set.
Possible causes
- Wiring shorted to ground or supply voltage
- Defective sensors
- Pedal position sensor wiring shorted to ground or supply voltage
- Pedal position sensor not working
- Brake control module (BCM) not working
What you can do
- 1Check the connectors at the brake control module, the pedal position sensor and the brake pressure sensors for contact resistance and oxidation
- 2Check the wiring to the pedal position sensor for open circuits and short circuits to ground and supply voltage
- 3Read the fault status and check the sensors with diagnostic equipment
- 4The brake system is safety critical: drive carefully as stability and traction control do not work, and do not work on the brake sensors yourself
Symptoms you may notice4
- General warning lamp on
- Anti-skid, stability and anti-spin do not work
- Information lamp on
- Traction control does not work
What the fault can affect3
- Stability control, traction control, active yaw control (AYC) and TRACS are disabled
- Brake assist is disabled
- Traction control on the rear wheels is disabled
General guidance for car owners. Diagnosis on the car can point to a different cause.