VOLVO
ECM-P21292F - Throttle/Pedal Position Sensor/Switch E 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 and the signal erratic: the PWM signal from the accelerator pedal sensor has been wrong, but the fault is not present at the moment. The engine control module (ECM) compares the two pedal signals, which should follow each other as the pedal moves. This code is only set together with other fault codes in the system.
Possible causes
- Contact resistance or oxidation in the connectors
- Damaged accelerator pedal sensor
What you can do
- 1Check that the fuses are intact; their locations are in the owner's manual or on the fuse box cover
- 2Road test the car to see whether the fault shows right now, and read the diagnostic and fault status if you have a diagnostic tool
- 3With a diagnostic tool, read the pedal movement in live data while pressing and releasing the pedal slowly; the values should change with the movement and the signals should follow each other
- 4Check the connectors at the pedal sensor and the engine control module for contact resistance and oxidation
- 5If the fault returns, treat it as permanent and replace the pedal sensor only if nothing else is found in the wiring
Symptoms you may notice2
- Yellow warning symbol and a message in the display
- The car has poor performance and lacks power
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.