VOLVO
ECM-2500 - Fuel pressure. Signal too low
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 (20)
- Volvo C30 (2007–2013)2007Engine D5244T8, D5244T9 only
- Volvo C30 (2007–2013)2008–2010Engine D5244T13, D5244T8, D5244T9 only
- Volvo C70 (2006–2013)2007Engine D5244T8, D5244T9 only
- Volvo C70 (2006–2013)2008–2010Engine D5244T13, D5244T8, D5244T9 only
- Volvo S40 (2004–2013)2006Engine D5244T8 only
- Volvo S40 (2004–2013)2007Engine D5244T8, D5244T9 only
- Volvo S40 (2004–2013)2008–2010Engine 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)2006Engine D5244T8 only
- Volvo V50 (2004–2013)2007Engine D5244T8, D5244T9 only
- Volvo V50 (2004–2013)2008–2010Engine 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–)2012Engine D5244T18, D5244T5 only
What does this fault code mean?
The ECM watches the fuel pressure sensor and stores the code if its signal is too high or too low. This fault concerns a signal that is too low, which can come from a poor connection or a short to ground in the signal cable.
Possible causes
- Contact resistance or oxidation in the connectors
- Signal cable short-circuited to ground
- Damaged fuel pressure sensor
What you can do
- 1Read and note the code, clear it and road test to see whether it returns
- 2Check the fuel pressure sensor connector for contact resistance, oxidation and open circuit
- 3If you have a diagnostic tool: look at the fuel pressure sensor value in live data with the engine idling, and see whether it is unreasonably low
- 4Follow the signal cable from the fuel pressure sensor and look for chafing and places where it may have touched the body
- 5Use a multimeter to check that the signal cable is not short-circuited to ground, meaning the car body, and has no open circuit
- 6If the wiring is intact, have a workshop with diagnostic equipment check and, if needed, replace the fuel pressure sensor
Symptoms you may notice3
- A message appears in the display
- Poor performance, the engine runs badly
- The malfunction indicator lamp (MIL) is lit
What the fault can affect1
- The control module uses a calculated value for the fuel pressure instead
General guidance for car owners. Diagnosis on the car can point to a different cause.