VOLVO
ECM-901B - Brake pedal sensor, signal via CAN. Signal missing
System
Engine Control Module (ECM)
Volvo models this fault code applies to
Applies to the following models:
4 modelsC30 (2007–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)
Show models by year and engine (9)
- Volvo C30 (2007–2013)2007Engine B5254T3 only
- Volvo C30 (2007–2013)2008–2013Engine B5254T7 only
- Volvo C70 (2006–2013)2006–2007Engine B5254T3 only
- Volvo C70 (2006–2013)2008–2013Engine B5254T7 only
- Volvo S40 (2004–2013)2005–2007Engine B5254T3 only
- Volvo S40 (2004–2013)2008Engine B5254T3, B5254T7 only
- Volvo S40 (2004–2013)2009–2012Engine B5254T7 only
- Volvo V50 (2004–2013)2005–2007Engine B5254T3 only
- Volvo V50 (2004–2013)2008–2012Engine B5254T7 only
What does this fault code mean?
The engine control module (ECM) receives no valid brake pedal signal over the CAN network from the brake control module (BCM), and the code is set. The cause lies in the brake control module, so this code is a consequence of that fault. Fix the BCM fault first; this code can be cleared only once the fault in the brake control module has been fixed and erased.
Possible causes
- The cause lies in the brake control module (BCM)
What you can do
- 1Read the codes in the BCM and trace those first
- 2Clear this code only after the code in the brake control module has been fixed and erased
- 3Because the fault concerns the brake system, have a workshop take over if the brake control module check finds nothing
Symptoms you may notice1
- Cruise control does not work at all
What the fault can affect1
- Cruise control is switched off
General guidance for car owners. Diagnosis on the car can point to a different cause.