VOLVO
BCM-0074 - Hydraulic valves. 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?
The brake control module (BCM) has registered a fault in the circuits to the inlet and outlet valves of the hydraulic ABS unit. The fault may be caused by a short circuit, an open circuit, interference or an internal fault in the module. While the fault is present, ABS and stability control do not work.
Possible causes
- Fault inside the brake control module (BCM)
- Short to ground or supply voltage in the valve circuits, or an open circuit in the circuit
What you can do
- 1Try to activate the hydraulic valves with diagnostic equipment; the valves should be heard operating
- 2Check the connectors at the brake control module for contact resistance and oxidation
- 3Clear the code and road test to see whether it returns
- 4The brake system is safety critical: do not replace the brake control module without a workshop's assessment, do not work on the hydraulic unit yourself
Symptoms you may notice5
- ABS warning lamp on
- The brake circuit does not work and the warning lamp comes on
- Anti-spin and stability function do not work
- Anti-skid does not work
- General warning lamp on
What the fault can affect3
- ABS is disabled
- Traction control, stability control, active yaw control (AYC) and brake assist are disabled
- Electronic brake force distribution (EBD) is disabled
General guidance for car owners. Diagnosis on the car can point to a different cause.