VOLVO
ECM-P045B00 - Exhaust Gas Recirculation B Control Circuit Range/Performance. 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 (35)
- Volvo S60 (2011–)2011Engine D5204T2, D5244T10 only
- Volvo S60 (2011–)2012Engine D5204T3, D5244T11, D5244T15 only
- Volvo S60 (2011–)2013–2014Engine D5204T3, D5204T7, D5244T11, D5244T15 only
- Volvo S60 (2011–)2015Engine D5204T3, D5204T7, D5244T11, D5244T15, D5244T23 only
- Volvo S80 (2007–)2009Engine D5244T10 only
- Volvo S80 (2007–)2010Engine D4164T, D5244T10, D5244T14, D5244T19 only
- Volvo S80 (2007–)2011Engine D4164T, D5204T2, D5244T10 only
- Volvo S80 (2007–)2012Engine D5204T3, D5244T11, D5244T15 only
- Volvo S80 (2007–)2013–2014Engine D5204T3, D5204T7, D5244T11, D5244T15 only
- Volvo S80 (2007–)2015Engine D5204T3, D5244T15 only
- Volvo V40 (2013–)2013–2014Engine D5204T4, D5204T6 only
- Volvo V40 (2013–)2015Engine D5204T6 only
- Volvo V40 Cross Country (2013–)2013–2014Engine D5204T4, D5204T6 only
- Volvo V40 Cross Country (2013–)2015Engine D5204T6 only
- Volvo V60 (2011–)2011Engine D5204T2, D5244T10 only
- Volvo V60 (2011–)2012Engine D5204T3, D5244T11, D5244T15 only
- Volvo V60 (2011–)2013Engine D5204T3, D5204T7, D5244T11, D5244T15, D5244T17, D82PHEV only
- Volvo V60 (2011–)2014Engine D5204T3, D5204T7, D5244T11, D5244T12, D5244T15, D5244T17, D82PHEV only
- Volvo V60 (2011–)2015Engine D5204T3, D5204T7, D5244T11, D5244T12, D5244T15, D5244T17, D5244T23, D82PHEV, D87PHEV only
- Volvo V70 (2008–)2009Engine D5244T10 only
- Volvo V70 (2008–)2010Engine D4164T, D5244T10, D5244T14, D5244T19 only
- Volvo V70 (2008–)2011Engine D4164T, D5204T2, D5244T10 only
- Volvo V70 (2008–)2012Engine D5204T3, D5244T11, D5244T15 only
- Volvo V70 (2008–)2013Engine D5204T3, D5204T7, D5244T11, D5244T15, D5244T17 only
- Volvo V70 (2008–)2014–2015Engine D5204T3, D5204T7, D5244T11, D5244T12, D5244T15, D5244T17 only
- Volvo XC60 (2009–)2010Engine D5244T10, D5244T14, D5244T16 only
- Volvo XC60 (2009–)2011Engine D5204T2, D5244T10, D5244T16 only
- Volvo XC60 (2009–)2012Engine D5204T3, D5244T11, D5244T15, D5244T17 only
- Volvo XC60 (2009–)2013All engines except: B4204T7, B6304T4, B6324S4, B6324S5
- Volvo XC60 (2009–)2014Engine D5204T3, D5204T7, D5244T11, D5244T12, D5244T15, D5244T17 only
- Volvo XC60 (2009–)2015Engine D5204T3, D5204T7, D5244T11, D5244T12, D5244T15, D5244T17, D5244T23 only
- Volvo XC70 (2008–)2010Engine D5244T10, D5244T14, D5244T16 only
- Volvo XC70 (2008–)2011Engine D5204T2, D5244T10, D5244T16 only
- Volvo XC70 (2008–)2012–2013All engines except: B6304T4, B6324S4, B6324S5
- Volvo XC70 (2008–)2014–2015Engine D5204T3, D5244T11, D5244T12, D5244T15, D5244T17 only
What does this fault code mean?
If the pulse-width modulated (PWM) signal to the EGR valve is faulty, this general code is set. It concerns exhaust gas recirculation (EGR). The ECM watches the signal from the internal power stage that drives the EGR motor. The code does not specify the kind of fault, and
Possible causes
- The EGR valve is blocked or binding
- Open circuit in the signal wire
- Damaged EGR valve
- Contact resistance or oxidation in the connectors
- Damaged position sensor
What you can do
- 1Check the fuses first. Their locations are given in the owner's manual or on the fuse box cover
- 2With the ignition off, inspect the intake side for leaks and damage
- 3Make sure the EGR valve is free from blockage and soot, and clean away any dirt and soot as needed
- 4With a diagnostic tool, activate the EGR valve and listen for a click. A position sensor value that stays still, even after cleaning, points to a damaged valve
- 5Use a multimeter to check that the signal wire to the EGR valve is not short-circuited to supply voltage, to ground or to another wire
- 6After repair or replacement the EGR valve is adapted, which a workshop carries out. Clear the code and road test
Symptoms you may notice1
- The check engine lamp lights up or behaves abnormally
What the fault can affect1
- Exhaust gas recirculation (EGR) is not controlled
General guidance for car owners. Diagnosis on the car can point to a different cause.