VOLVO
BCM-0118 - Power supply for the active yaw control sensor. Voltage too high
System
Brake Control Module (BCM)
Volvo models this fault code applies to
This fault code has different meanings depending on model, model year or engine. Select the meaning that applies to your car.
Applies to the following models:
5 modelsS60 (2001–2009), S80 (1999–2006), V70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)
Show models by year and engine (11)
- Volvo S60 (2001–2009)2002–2009
- Volvo S80 (1999–2006)2002–2006
- 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 registers that the voltage supply to the AYC sensor is too high. This may be because the supply wire is shorted to supply voltage, or because the AYC sensor is damaged inside.
Possible causes
- Supply wire to the AYC sensor shorted to supply voltage
- Internal fault in the AYC sensor
What you can do
- 1Check the supply wire to the AYC sensor for damage and for short circuits to supply voltage
- 2Check the voltage supply with diagnostic equipment and replace the AYC sensor if its supply is wrong
- 3The brake system is safety critical: do not replace the brake control module for this code, and drive carefully until the fault is fixed
Symptoms you may notice5
- Anti-spin warning lamp on
- General yellow warning lamp on
- Anti-spin does not work
- Stability function does not work
- Anti-skid does not work
What the fault can affect1
- Traction control (TC), stability control (SC) and active yaw control (AYC) are disabled
General guidance for car owners. Diagnosis on the car can point to a different cause.