VOLVO
ECM-0341 - Camshaft position (CMP) sensor. Faulty signal
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 (12)
- Volvo C30 (2007–2013)2007–2010Engine B4164S3, D4204T only
- Volvo C30 (2007–2013)2011–2012Engine B4164S3 only
- Volvo C70 (2006–2013)2008Engine D4204T only
- Volvo C70 (2006–2013)2009–2010Engine D4204T only · Transmission MMT6, MPS6 only
- Volvo S40 (2004–2013)2004Engine D4204T, D4204T2 only
- Volvo S40 (2004–2013)2005–2006Engine B4164S3, D4204T, D4204T2 only
- Volvo S40 (2004–2013)2007–2010Engine B4164S3, D4204T only
- Volvo S40 (2004–2013)2011–2012Engine B4164S3 only
- Volvo V50 (2004–2013)2004Engine D4204T, D4204T2 only
- Volvo V50 (2004–2013)2005–2006Engine B4164S3, D4204T, D4204T2 only
- Volvo V50 (2004–2013)2007–2010Engine B4164S3, D4204T only
- Volvo V50 (2004–2013)2011–2012Engine B4164S3 only
What does this fault code mean?
The engine control module (ECM) compares the camshaft sensor signal with a calculated value. When the two do not agree at engine speeds above a certain level, the control module interprets this as a fault. The causes may be contact resistance, wiring faults, an incorrectly fitted or damaged camshaft sensor, or a damaged control module.
Possible causes
- Contact resistance in the connections
- Open circuit or short circuit in the wiring
- Incorrectly fitted camshaft position sensor
- Damaged camshaft position (CMP) sensor
- Damaged engine control module
What you can do
- 1Check that the camshaft sensor is correctly seated and not damaged or dirty. Clean it if needed
- 2Switch off the ignition and check the camshaft sensor connector for contact resistance and oxidation
- 3Use a multimeter to check that the wires to the camshaft sensor have no open circuit and no short to ground or voltage
- 4Road-test the car after the work, since the fault can only be set while the engine runs above a certain speed
- 5If the fault remains, have a workshop with diagnostic equipment check the camshaft sensor and the control module
Symptoms you may notice2
- The engine does not start, or cranks without starting
- The malfunction indicator lamp (MIL) is lit
General guidance for car owners. Diagnosis on the car can point to a different cause.