VOLVO
ECM-P012216 - Throttle/Pedal Position Sensor A Circuit Low. General Electrical Failures. Circuit voltage below threshold
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 engine control module (ECM) detects a fault in the signal from throttle potentiometer 1, and the voltage is too low. The fault code is then set.
Possible causes
- Poor contact or oxidation between the engine control module and the throttle unit connectors
- Short-circuit to ground in the signal cable
- Power supply to potentiometers 1 and 2 shorted to ground or open-circuited
- Damaged throttle unit
What you can do
- 1Read the fault code status with the ignition on and check whether the fault is active. Then clear the code and road test the vehicle
- 2Check the connections between the control module and the throttle unit for contact resistance and oxidation
- 3With the connector unplugged, use a multimeter to check the throttle unit supply for a short to ground or an open circuit
- 4If you have a diagnostic tool: read the throttle position sensor in live data and see whether it follows the pedal. A value that does not follow suggests a fault
- 5If no faults are found in these checks and the fault remains as a permanent fault, have a workshop try replacing the throttle unit
Symptoms you may notice2
- A text message is shown together with a warning symbol
- The engine has poor performance and lacks power
What the fault can affect2
- The throttle angle is calculated from potentiometer 2 instead
- If potentiometers 1 and 2 both have stored faults at the same time, power to the throttle motor is cut off and the throttle returns to its spring-loaded position
General guidance for car owners. Diagnosis on the car can point to a different cause.