VOLVO
ECM-2455 - pressure sensor, particle filter. Signal too high
System
Engine Control Module (ECM)
Volvo models this fault code applies to
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)2005–2006Engine 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)2005–2006Engine 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 ECM compares pressure readings from each side of the particle filter and checks that the sensor signal follows a calculated value. The code is stored when the signal is too high, meaning higher than the calculation gives. The fault concerns the signal from the particle filter pressure sensor.
Possible causes
- Signal cable short-circuited to supply voltage
- Ground lead short-circuited to supply voltage
- Damaged particle filter pressure sensor
What you can do
- 1Read and note the code, clear it and road test to see whether it returns
- 2Look at the connector to the particle filter pressure sensor and make sure it is intact and fully seated
- 3Follow the signal and ground leads from the sensor and look for damaged insulation and places where a lead may have touched live voltage
- 4Use a multimeter to check that the cables are not short-circuited to supply voltage, meaning plus on the car
- 5If the cables are intact, have a workshop with diagnostic equipment check the pressure sensor and replace it if needed
Symptoms you may notice2
- The check engine light comes on
- Poor performance, the car lacks power
What the fault can affect1
- Engine output and speed may be limited
General guidance for car owners. Diagnosis on the car can point to a different cause.