VOLVO
ECM-P245717 - Exhaust Gas Recirculation Cooler Efficiency Below Threshold. General Electrical Failures. Circuit voltage above threshold
System
Engine Control Module (ECM)
Volvo models this fault code applies to
Applies to the following models:
9 modelsC30 (2007–2013), S40 (2004–2013), S60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V50 (2004–2013), V60 (2011–), V70 (2008–)
Show models by year and engine (9)
- Volvo C30 (2007–2013)2011–2013Engine D4162T only
- Volvo S40 (2004–2013)2011–2012Engine D4162T only
- Volvo S60 (2011–)2011–2015Engine D4162T only
- Volvo S80 (2007–)2012–2015Engine D4162T only
- Volvo V40 (2013–)2013–2015Engine D4162T only
- Volvo V40 Cross Country (2013–)2013–2015Engine D4162T only
- Volvo V50 (2004–2013)2011–2012Engine D4162T only
- Volvo V60 (2011–)2011–2015Engine D4162T only
- Volvo V70 (2008–)2012–2015Engine D4162T only
What does this fault code mean?
Although the code is named EGR cooler efficiency below threshold, it applies when the signal from the bypass valve position sensor is too high. The engine control module (ECM) drives the bypass valve so that the recirculated exhaust air stays at the best possible temperature, and checks the valve position with the sensor.
Possible causes
- Poor contact or oxidation at connectors or joints
- Signal wire short-circuited to supply voltage
- Open circuit in the signal wire
- Damaged bypass valve
What you can do
- 1Check that the connectors at the bypass valve are firmly seated and not oxidised
- 2Use a multimeter to check that the signal wire to the bypass valve has no contact with supply voltage
- 3Use a multimeter to check that the signal wire to the bypass valve has no open circuit
- 4If the fault returns, have a workshop check the bypass valve and its wiring with diagnostic equipment
Symptoms you may notice1
- No noticeable symptoms for the driver
General guidance for car owners. Diagnosis on the car can point to a different cause.