VOLVO
ECM-P212236 - Throttle/Pedal Position Sensor/Switch D Circuit Low. FM (Frequency Modulated) / PWM (Pulse Width Modulated) Failures. Signal frequency too low
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 (11)
- 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–)2008–2010Engine D4204T 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–)2008–2010Engine D4204T only
- Volvo V70 (2008–)2012–2015Engine D4162T only
What does this fault code mean?
The engine control module monitors the PWM signal from the accelerator pedal sensor and has registered that it has too low a frequency. The fault may come from connectors, a break in the signal ground wire, a signal wire shorted to ground or supply voltage, or a damaged accelerator pedal position sensor.
Possible causes
- Poor contact or oxidation, or a loose connector
- An open circuit in the signal ground wire
- The signal wire is short-circuited to ground or supply voltage
- Damaged accelerator pedal position sensor
What you can do
- 1Check that the fuses are intact
- 2Look at the connector at the pedal sensor and the engine control module, and check for looseness and oxidation
- 3Use a multimeter to check that the signal ground wire has no break
- 4Look for chafing on the signal wire, and use a multimeter to check that it is not shorted to ground or supply voltage
- 5If you have a diagnostic tool, read the pedal position in live data and check that it follows the pedal
- 6If 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.