VOLVO
ECM-2454 - Pressure sensor, particle filter. Signal too low
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 pressure sensor signal follows a calculated value. The code is stored when the signal is too low. The fault can lie in the sensor, its connections or the wiring, and it can reduce engine performance.
Possible causes
- Contact resistance or oxidation at the connections
- Short circuit to ground in the signal cable
- Short circuit to ground in the supply cable to the sensor
- Damaged particle filter pressure sensor
What you can do
- 1Read and note the code, clear it and road test to see whether it returns
- 2Check the connector to the particle filter pressure sensor for oxidation and loose connections
- 3Follow the signal and supply cables from the pressure sensor and look for chafing and pinch damage, especially where they may have touched the body
- 4Use a multimeter to check that the cables are not short-circuited to ground, meaning the car body
- 5If the cables are intact, have a workshop with diagnostic equipment check the pressure sensor and the particle filter
Symptoms you may notice2
- The check engine light comes on
- Poor performance, the car lacks power
What the fault can affect1
- The engine may go into limp-home mode
General guidance for car owners. Diagnosis on the car can point to a different cause.