VOLVO
ECM-P21242F - Throttle/Pedal Position Sensor/Switch D Circuit Intermittent. General Signal Failures. Signal erratic
System
Engine Control Module (ECM)
Volvo models this fault code applies to
Applies to the following models:
7 modelsS60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V70 (2008–), XC60 (2009–)
Show models by year and engine (20)
- Volvo S60 (2011–)2011Engine B4164T, B4164T3, B4204T6, B4204T7 only
- Volvo S60 (2011–)2012–2014Engine B4164T, B4164T2, B4164T3, B4204T7 only
- Volvo S60 (2011–)2015Engine B4164T, B4164T2, B4164T3 only
- Volvo S80 (2007–)2010Engine B4204T6 only
- Volvo S80 (2007–)2011Engine B4164T, B4204T6, B4204T7 only
- Volvo S80 (2007–)2012–2014Engine B4164T, B4164T2, B4204T6, B4204T7 only
- Volvo S80 (2007–)2015Engine B4164T only
- Volvo V40 (2013–)2013Engine B4164T, B4164T3 only
- Volvo V40 (2013–)2014–2015Engine B4164T, B4164T3, B4164T4 only
- Volvo V40 Cross Country (2013–)2013–2015Engine B4164T only
- Volvo V60 (2011–)2011Engine B4164T, B4164T3, B4204T6, B4204T7 only
- Volvo V60 (2011–)2012–2014Engine B4164T, B4164T2, B4164T3, B4204T7 only
- Volvo V60 (2011–)2015Engine B4164T, B4164T2, B4164T3 only
- Volvo V70 (2008–)2010Engine B4204T6 only
- Volvo V70 (2008–)2011Engine B4164T, B4204T6, B4204T7 only
- Volvo V70 (2008–)2012–2014Engine B4164T, B4164T2, B4204T7 only
- Volvo V70 (2008–)2015Engine B4164T, B4164T2 only
- Volvo XC60 (2009–)2010Engine B4204T6 only
- Volvo XC60 (2009–)2011–2012Engine B4204T6, B4204T7 only
- Volvo XC60 (2009–)2013–2015Engine B4204T7 only
What does this fault code mean?
The fault is intermittent, meaning it comes and goes, so it may not show up right now. The engine control module has registered that the analogue signal from the accelerator pedal sensor is incorrect, and compares it with the PWM signal. The code is only set if one of the codes ECM-P012000, ECM-P012200 or ECM-P012300 has been detected, and here the fault has not lasted long enough for that.
Possible causes
- Contact resistance or oxidation in the connectors
- Damaged accelerator pedal position sensor
What you can do
- 1Check that the fuses are intact
- 2Start the engine and read the accelerator pedal position in live data while slowly pressing and releasing the pedal. Check that the values follow the pedal and each other
- 3Check the connectors at the pedal sensor and the engine control module for contact resistance and oxidation. Loose connections are a common cause of intermittent faults
- 4If the fault is intermittent and does not show during these checks, test drive the car and read the code again afterwards
- 5If the fault remains, have a workshop decide whether the pedal sensor needs replacing
Symptoms you may notice2
- A text message and a warning symbol appear in the display
- The engine lacks power and performs poorly
What the fault can affect1
- Engine torque may be limited
General guidance for car owners. Diagnosis on the car can point to a different cause.