VOLVO
ECM-P013716 - O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2). General Electrical Failures. Circuit voltage below threshold
System
Engine Control Module (ECM)
Volvo models this fault code applies to
Applies to the following models:
7 modelsS60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V70 (2008–), XC60 (2009–)
Show models by year and engine (20)
- Volvo S60 (2011–)2011Engine B4164T, B4164T3, B4204T6, B4204T7 only
- Volvo S60 (2011–)2012–2014Engine B4164T, B4164T2, B4164T3, B4204T7 only
- Volvo S60 (2011–)2015Engine B4164T, B4164T2, B4164T3 only
- Volvo S80 (2007–)2010Engine B4204T6 only
- Volvo S80 (2007–)2011Engine B4164T, B4204T6, B4204T7 only
- Volvo S80 (2007–)2012–2014Engine B4164T, B4164T2, B4204T6, B4204T7 only
- Volvo S80 (2007–)2015Engine B4164T only
- Volvo V40 (2013–)2013Engine B4164T, B4164T3 only
- Volvo V40 (2013–)2014–2015Engine B4164T, B4164T3, B4164T4 only
- Volvo V40 Cross Country (2013–)2013–2015Engine B4164T only
- Volvo V60 (2011–)2011Engine B4164T, B4164T3, B4204T6, B4204T7 only
- Volvo V60 (2011–)2012–2014Engine B4164T, B4164T2, B4164T3, B4204T7 only
- Volvo V60 (2011–)2015Engine B4164T, B4164T2, B4164T3 only
- Volvo V70 (2008–)2010Engine B4204T6 only
- Volvo V70 (2008–)2011Engine B4164T, B4204T6, B4204T7 only
- Volvo V70 (2008–)2012–2014Engine B4164T, B4164T2, B4204T7 only
- Volvo V70 (2008–)2015Engine B4164T, B4164T2 only
- Volvo XC60 (2009–)2010Engine B4204T6 only
- Volvo XC60 (2009–)2011–2012Engine B4204T6, B4204T7 only
- Volvo XC60 (2009–)2013–2015Engine B4204T7 only
What does this fault code mean?
Although the code is named for a low voltage, it concerns the signal from the rear oxygen sensor in bank 1, sensor 2. The engine control module (ECM) monitors the sensor signal and sets the code when it deviates from its permitted range, or when the sensor's pre-heating voltage disturbs the signal. The rear sensor is used to check that the catalytic converter is working.
Possible causes
- Signal wire shorted to ground
- Ground wire shorted to ground
- Damaged rear oxygen sensor
What you can do
- 1Read the code, clear it and road test the car to see whether it comes back
- 2Use a multimeter to check that the signal wire to the rear sensor is not shorted to ground
- 3Check the connector to the rear sensor for contact resistance and oxidation; do not use rust solvent spray or grease
- 4If the wires and connector are intact, replace the rear oxygen sensor
Symptoms you may notice1
- Check engine light (MIL) on
What the fault can affect2
- Control with the rear oxygen sensor is switched off
- Catalytic converter diagnostics are disabled
General guidance for car owners. Diagnosis on the car can point to a different cause.