VOLVO
ECM-P036800 - Camshaft Position Sensor B Circuit High Input (Bank 1). General Failure Information. No sub type information
System
Engine Control Module (ECM)
Volvo models this fault code applies to
Applies to the following models:
3 modelsS60 (2011–), S80 (2007–), V70 (2008–)
Show models by year and engine (9)
- Volvo S60 (2011–)2011–2012Engine B5254T5 only
- Volvo S80 (2007–)2007–2008Engine B5254T6 only
- Volvo S80 (2007–)2009Engine B5254T6, B5254T8 only
- Volvo S80 (2007–)2010–2011Engine B5254T10, B5254T11, B5254T8 only
- Volvo S80 (2007–)2012Engine B5254T10 only
- Volvo V70 (2008–)2008Engine B5254T6 only
- Volvo V70 (2008–)2009Engine B5254T6, B5254T8 only
- Volvo V70 (2008–)2010–2011Engine B5254T10, B5254T11 only
- Volvo V70 (2008–)2012Engine B5254T10 only
What does this fault code mean?
The signal from the exhaust camshaft sensor on bank 1 is constantly high, which the engine control module (ECM) interprets as a fault while the engine runs. The fault may lie in the signal or supply wire, the ground lead or the sensor.
Possible causes
- Open circuit in the signal wire
- Signal wire short circuit to supply voltage
- Supply wire short circuit to ground
- Open circuit in the ground lead
- Damaged camshaft sensor
What you can do
- 1If you have a diagnostic tool, start the engine and read the fault status. 'Fault found' means the fault is permanent.
- 2Check that the fuses are intact.
- 3With the ignition off, check the connector at the exhaust camshaft sensor on bank 1 for contact resistance and oxidation.
- 4Use a multimeter to check that the signal wire has no open circuit and is not shorted to supply voltage.
- 5Use a multimeter to check that the ground lead has no open circuit and that the supply wire is not shorted to ground.
- 6If the fault returns, have a workshop check the exhaust camshaft sensor on bank 1.
Symptoms you may notice1
- Engine is hard to start
General guidance for car owners. Diagnosis on the car can point to a different cause.