VOLVO
ECM-P012100 - Throttle/Pedal Position Sensor A Circuit Range/Performance. General Failure Information. No sub type information
System
Engine Control Module (ECM)
Volvo models this fault code applies to
Applies to the following models:
3 modelsS60 (2011–), S80 (2007–), V70 (2008–)
Show models by year and engine (10)
- Volvo S60 (2011–)2011–2012Engine B5254T5 only
- Volvo S80 (2007–)2007Engine B5254T6 only
- Volvo S80 (2007–)2008Engine B4204S3, B4204S4, B5254T6 only
- Volvo S80 (2007–)2009Engine B4204S3, B4204S4, B5254T6, B5254T8 only
- Volvo S80 (2007–)2010–2011Engine B4204S3, B4204S4, B5254T10, B5254T11, B5254T8, D4164T only
- Volvo S80 (2007–)2012Engine B5254T10 only
- Volvo V70 (2008–)2008Engine B4204S3, B4204S4, B5254T6 only
- Volvo V70 (2008–)2009Engine B4204S3, B4204S4, B5254T6, B5254T8 only
- Volvo V70 (2008–)2010–2011Engine B4204S3, B4204S4, B5254T10, B5254T11, D4164T only
- Volvo V70 (2008–)2012Engine B5254T10 only
What does this fault code mean?
The engine control module (ECM) checks the signal from the throttle position sensor, potentiometer 1. The fault code is set when the signal is faulty or the expected voltage is outside the permitted range.
Possible causes
- Poor contact or oxidation between the engine control module and the throttle unit connectors
- Damaged throttle unit
- Damaged potentiometer 1 in the throttle unit
- Open circuit on the signal cables
- Voltage feed short-circuited to ground
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 connection between the control module and the throttle unit for contact resistance and oxidation
- 3If you have a diagnostic tool: read the throttle position in live data with the engine idling and while pressing the accelerator. The value should follow the pedal smoothly
- 4If no fault is found in these checks and the code returns as a permanent fault, have a workshop try replacing the throttle unit
Symptoms you may notice2
- The engine has poor performance
- A text message is shown together with a warning symbol
What the fault can affect3
- The throttle angle is calculated from potentiometer 2 instead
- If potentiometer 2 also fails, the power supply to the throttle motor is cut off and the throttle returns to its spring-loaded position
- Cruise control is switched off while the fault is active
General guidance for car owners. Diagnosis on the car can point to a different cause.