VOLVO
ECM-P251A47 - PTO Enable Switch Circuit / Open. System Internal Failures. Watchdog / safety µC failure
System
Engine Control Module (ECM)
Volvo models this fault code applies to
Applies to the following models:
9 modelsC30 (2007–2013), S40 (2004–2013), S60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V50 (2004–2013), V60 (2011–), V70 (2008–)
Show models by year and engine (9)
- Volvo C30 (2007–2013)2011–2013Engine D4162T only
- Volvo S40 (2004–2013)2011–2012Engine D4162T only
- Volvo S60 (2011–)2011–2015Engine D4162T only
- Volvo S80 (2007–)2012–2015Engine D4162T only
- Volvo V40 (2013–)2013–2015Engine D4162T only
- Volvo V40 Cross Country (2013–)2013–2015Engine D4162T only
- Volvo V50 (2004–2013)2011–2012Engine D4162T only
- Volvo V60 (2011–)2011–2015Engine D4162T only
- Volvo V70 (2008–)2012–2015Engine D4162T only
What does this fault code mean?
The engine control module continuously monitors its internal components and functions. The code is stored when the control module detects an internal fault in itself, which means the module is the source of the fault.
Possible causes
- Damaged engine control module
What you can do
- 1Read the fault status with the engine running. If the code is not active, the fault may have been intermittent
- 2Restart the engine and see whether the fault returns
- 3Clear the code and road test the car to see whether it comes back
- 4If the fault returns, the engine control module must be replaced, which a workshop does
Symptoms you may notice1
- Text message in the display
General guidance for car owners. Diagnosis on the car can point to a different cause.