VOLVO
ECM-2299 - Accelerator pedal (AP) position sensor/stop lamp switch. Faulty signal
System
Engine Control Module (ECM)
Volvo models this fault code applies to
This fault code has different meanings depending on model, model year or engine. Select the meaning that applies to your car.
Applies to the following models:
4 modelsC30 (2007–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)
Show models by year and engine (10)
- Volvo C30 (2007–2013)2007Engine D4204T only
- Volvo C30 (2007–2013)2008–2010Engine D4204T only · Transmission MMT6, MPS6 only
- Volvo C70 (2006–2013)2008Engine D4204T only
- Volvo C70 (2006–2013)2009–2010Engine D4204T only · Transmission MMT6, MPS6 only
- Volvo S40 (2004–2013)2004–2006Engine D4204T, D4204T2 only
- Volvo S40 (2004–2013)2007Engine D4204T only
- Volvo S40 (2004–2013)2008–2010Engine D4204T only · Transmission MMT6, MPS6 only
- Volvo V50 (2004–2013)2004–2006Engine D4204T, D4204T2 only
- Volvo V50 (2004–2013)2007Engine D4204T only
- Volvo V50 (2004–2013)2008–2010Engine D4204T only · Transmission MMT6, MPS6 only
What does this fault code mean?
The engine control module (ECM) compares the signals from the accelerator pedal position sensor and the stop lamp switch. The code is set when the two do not agree with each other. The fault often shows as a text message in the display. Brakes are a safety system, so the fault should be dealt with promptly.
Possible causes
- Loose or oxidised terminals at the pedal sensors or stop lamp switch
- Fault in the accelerator pedal position sensor signal
- Fault in the stop lamp switch signal
What you can do
- 1Read and first fix any codes in the brake control module (BCM), the central electronic module (CEM) and the engine control module that concern the stop lamp switch or accelerator pedal
- 2Check that the brake lights come on when you press the brake pedal and go out when you release it
- 3Check that the connectors at the brake pedal and accelerator pedal are secure and free from oxidation
- 4If you have a diagnostic tool: see that the stop lamp switch status changes in live data when you press and release the brake
- 5If the fault remains, have a workshop check the stop lamp switch and the accelerator pedal sensor
- 6Brakes are a safety system: do not drive the car if you suspect the brake function is faulty
Symptoms you may notice1
- Text message and warning symbol in the display
General guidance for car owners. Diagnosis on the car can point to a different cause.