VOLVO
ECM-P034A00 - Crankshaft Position Sensor - Crankshaft Start Position Incorrect. General Failure Information. No sub type information
System
Engine Control Module (ECM)
Volvo models this fault code applies to
Applies to the following models:
8 modelsS60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V70 (2008–), XC60 (2009–), XC70 (2008–)
Show models by year and engine (20)
- Volvo S60 (2011–)2011Engine B4164T, B4164T3 only
- Volvo S60 (2011–)2012–2013Engine B4164T, B4164T2, B4164T3 only
- Volvo S60 (2011–)2014–2015Engine B4164T, B4164T2, B4164T3, B4204T10, B4204T11, B4204T12, B4204T15, B4204T9, D4204T5 only
- Volvo S80 (2007–)2011Engine B4164T only
- Volvo S80 (2007–)2012–2013Engine B4164T, B4164T2 only
- Volvo S80 (2007–)2014Engine B4164T, B4164T2, B4204T11, B4204T12, B4204T15, D4204T5 only
- Volvo S80 (2007–)2015Engine B4164T, B4204T11, B4204T12, B4204T15, D4204T5 only
- Volvo V40 (2013–)2013Engine B4164T, B4164T3 only
- Volvo V40 (2013–)2014Engine B4164T, B4164T3, B4164T4 only
- Volvo V40 (2013–)2015All engines except: B5204T8, B5204T9, D4162T, D5204T6
- Volvo V40 Cross Country (2013–)2013–2014Engine B4164T only
- Volvo V40 Cross Country (2013–)2015Engine B4164T, B4204T11, D4204T14 only
- Volvo V60 (2011–)2011Engine B4164T, B4164T3 only
- Volvo V60 (2011–)2012–2013Engine B4164T, B4164T2, B4164T3 only
- Volvo V60 (2011–)2014–2015Engine B4164T, B4164T2, B4164T3, B4204T11, B4204T12, B4204T15, B4204T9, D4204T5 only
- Volvo V70 (2008–)2011Engine B4164T only
- Volvo V70 (2008–)2012–2013Engine B4164T, B4164T2 only
- Volvo V70 (2008–)2014–2015Engine B4164T, B4164T2, B4204T11, D4204T5 only
- Volvo XC60 (2009–)2014–2015Engine B4204T10, B4204T11, B4204T12, B4204T15, B4204T9, D4204T5 only
- Volvo XC70 (2008–)2014–2015Engine B4204T11, D4204T5 only
What does this fault code mean?
The crankshaft sensor does not register the engine rotating backwards when it is switched off during an automatic stop, so the sensor may have jammed. The engine control module (ECM) monitors the sensor signals, and the fault is stored when the signal is missing or incorrect. The code may therefore only appear after several automatic stops and restarts.
Possible causes
- Contact resistance and oxidation in the connections
- Short circuit on the cables to the sensor
- Crankshaft sensor fitted incorrectly
- Damaged crankshaft sensor
- Worn teeth on the timing belt
- Camshaft fitted incorrectly
What you can do
- 1If you have a diagnostic tool, start the engine and read the fault status. 'No fault found' means the fault is not active right now.
- 2Check that the fuses are intact.
- 3With the ignition off, check that the connector at the crankshaft sensor is secure and free from contact resistance and oxidation.
- 4Check that the crankshaft sensor is correctly fitted and that no cable with high current draw lies too close to the sensor or its wiring.
- 5If you have a diagnostic tool, read the crankshaft sensor signal in live data when the engine starts after an automatic stop, and check that the value rises steadily.
- 6If the fault returns, have a workshop check the timing belt, the camshaft and the crankshaft sensor.
Symptoms you may notice5
- Check engine light is on or behaves abnormally
- Engine does not start, sometimes or every time
- Text message and warning symbol shown in the display
- Car lacks power, especially when pulling away from standstill
- Car hesitates or jerks while driving, for example during acceleration or when slowing down
General guidance for car owners. Diagnosis on the car can point to a different cause.