VOLVO
ECM-9530 - Accelerator pedal sensor. 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:
8 modelsC30 (2007–2013), C70 (2006–2013), S40 (2004–2013), S60 (2001–2009), V50 (2004–2013), V70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)
Show models by year and engine (23)
- Volvo C30 (2007–2013)2007Engine D4164T, D5244T8, D5244T9 only
- Volvo C30 (2007–2013)2008–2010Engine D4164T, D5244T13, D5244T8, D5244T9 only
- Volvo C30 (2007–2013)2011Engine D4164T only
- Volvo C70 (2006–2013)2007Engine D5244T8, D5244T9 only
- Volvo C70 (2006–2013)2008–2010Engine D5244T13, D5244T8, D5244T9 only
- Volvo S40 (2004–2013)2005, 2011Engine D4164T only
- Volvo S40 (2004–2013)2006Engine D4164T, D5244T8 only
- Volvo S40 (2004–2013)2007Engine D4164T, D5244T8, D5244T9 only
- Volvo S40 (2004–2013)2008–2010Engine D4164T, D5244T13, D5244T8, D5244T9 only
- Volvo S60 (2001–2009)2006Engine D5244T4, D5244T5, D5244T6, D5244T7 only
- Volvo S60 (2001–2009)2007–2009Engine D5244T4, D5244T5, D5244T7 only
- Volvo V50 (2004–2013)2005, 2011Engine D4164T only
- Volvo V50 (2004–2013)2006Engine D4164T, D5244T8 only
- Volvo V50 (2004–2013)2007Engine D4164T, D5244T8, D5244T9 only
- Volvo V50 (2004–2013)2008–2010Engine D4164T, D5244T13, D5244T8, D5244T9 only
- Volvo V70 (2000–2008)2006Engine D5244T4, D5244T5, D5244T6, D5244T7 only
- Volvo V70 (2000–2008)2007Engine D5244T4, D5244T5, D5244T7 only
- Volvo V70 (2000–2008)2008Engine D5244T5, D5244T7 only
- Volvo V70 XC / XC70 (2001–2007)2006–2007Engine D5244T4 only
- Volvo XC90 (2003–)2006–2007Engine D5244T4 only
- Volvo XC90 (2003–)2008–2010Engine D5244T4, D5244T5 only
- Volvo XC90 (2003–)2011Engine D5244T18, D5244T4, D5244T5 only
- Volvo XC90 (2003–)2012All engines except: B5254T2, B6324S5
What does this fault code mean?
The engine control module (ECM) compares the PWM signal from the accelerator pedal sensor with the analogue signal, which reaches the ECM via the central electronics module (CEM) over the CAN network. If the analogue signal is faulty or implausible, or the PWM signal does not agree with the values calculated, the code is set.
Possible causes
- Troubleshoot the central electronics module (CEM) first
- Look for the cause in the CAN network
- Contact resistance or oxidation in the connections to the pedal sensor
- Supply voltage or signal wire shorted to supply voltage
- Open circuit or short to ground in the signal wire
- Damaged accelerator pedal position sensor
What you can do
- 1First read out and fix the fault codes in the central electronics module (CEM). Only then can this code be cleared
- 2If you have a diagnostic tool, check whether a communication fault code for the CAN network is also stored, and fix it
- 3Check the pedal sensor connector and the wiring for contact resistance and oxidation
- 4Check the connections at the engine control module and the pedal sensor for play, contact resistance and oxidation
- 5With a multimeter between the signal wire and ground while the pedal moves, check that the values follow the movement without interruptions
Symptoms you may notice5
- Text message in the information display
- Poor accelerator pedal response
- Automatic start and stop does not work
- Autostart does not work when starting
- Engine stumbles, surges or runs unevenly at steady speed
What the fault can affect1
- Engine power is limited
General guidance for car owners. Diagnosis on the car can point to a different cause.