VOLVO
ECM-P227100 - O2 Sensor Signal Stuck Rich - Bank 1, Sensor 2. General Failure Information. No sub type information
System
Engine Control Module (ECM)
Volvo models this fault code applies to
Applies to the following models:
10 modelsS60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–), XC90 (2003–)
Show models by year and engine (40)
- Volvo S60 (2011–)2011–2012Engine B6304T4 only
- Volvo S60 (2011–)2013Engine B5204T8, B5204T9, B5254T12, B5254T14, B6304T4 only
- Volvo S60 (2011–)2014Engine B4204T10, B4204T11, B4204T12, B4204T15, B4204T9, B5204T8, B5204T9, B5254T12, B5254T14, B6304T4 only
- Volvo S60 (2011–)2015All engines except: B4164T, B4164T2, B4164T3, D4162T, D4204T5, D5204T3, D5204T7, D5244T11, D5244T15, D5244T23
- Volvo S80 (2007–)2007Engine B8444S only
- Volvo S80 (2007–)2008–2009Engine B6304T2, B6324S, B8444S only
- Volvo S80 (2007–)2010Engine B6304T2, B6324S, B6324S2, B8444S only
- Volvo S80 (2007–)2011Engine B6304T4, B6324S4, B6324S5, B8444S only
- Volvo S80 (2007–)2012Engine B6304T4, B6324S4, B6324S5 only
- Volvo S80 (2007–)2013Engine B5254T12, B5254T14, B6304T4, B6324S4, B6324S5 only
- Volvo S80 (2007–)2014Engine B4204T11, B4204T12, B4204T15, B5254T12, B5254T14, B6304T4, B6324S4, B6324S5 only
- Volvo S80 (2007–)2015All engines except: B4164T, D4162T, D4204T5, D5204T3, D5244T15
- Volvo V40 (2013–)2013–2014Engine B5204T8, B5204T9, B5254T12, B5254T14 only
- Volvo V40 (2013–)2015Engine B4204T11, B5204T8, B5204T9 only
- Volvo V40 Cross Country (2013–)2013–2014Engine B5204T8, B5204T9, B5254T12, B5254T14 only
- Volvo V40 Cross Country (2013–)2015All engines except: B4164T, D4162T, D4204T14, D5204T6
- Volvo V60 (2011–)2011–2012Engine B6304T4 only
- Volvo V60 (2011–)2013Engine B5204T8, B5204T9, B6304T4 only
- Volvo V60 (2011–)2014Engine B4204T11, B4204T12, B4204T15, B4204T9, B5204T8, B5204T9, B5254T12, B6304T4 only
- Volvo V60 (2011–)2015Engine B4204T11, B4204T12, B4204T15, B4204T9, B5204T9, B5254T12, B6304T3, B6304T4, B6304T5 only
- Volvo V60 Cross Country (2015–)2015
- Volvo V70 (2008–)2008–2009Engine B6304T2, B6324S only
- Volvo V70 (2008–)2010Engine B6304T2, B6324S, B6324S2 only
- Volvo V70 (2008–)2011–2012Engine B6304T4, B6324S5 only
- Volvo V70 (2008–)2013Engine B5204T9, B6304T4, B6324S5 only
- Volvo V70 (2008–)2014Engine B4204T11, B5204T9, B6304T4, B6324S5 only
- Volvo V70 (2008–)2015Engine B4204T11, B5204T9, B6304T4 only
- Volvo XC60 (2009–)2009Engine B6304T2 only
- Volvo XC60 (2009–)2010Engine B6304T2, B6324S, B6324S2 only
- Volvo XC60 (2009–)2011–2013Engine B6304T4, B6324S4, B6324S5 only
- Volvo XC60 (2009–)2014Engine B4204T10, B4204T11, B4204T12, B4204T15, B4204T9, B6304T4, B6324S4, B6324S5 only
- Volvo XC60 (2009–)2015All engines except: B4204T7, D4204T5, D5204T3, D5204T7, D5244T11, D5244T12, D5244T15, D5244T17, D5244T23
- Volvo XC70 (2008–)2008Engine B6324S only
- Volvo XC70 (2008–)2009Engine B6304T2, B6324S only
- Volvo XC70 (2008–)2010Engine B6304T2, B6324S, B6324S2 only
- Volvo XC70 (2008–)2011–2013Engine B6304T4, B6324S4, B6324S5 only
- Volvo XC70 (2008–)2014–2015Engine B4204T11, B6304T4, B6324S4, B6324S5 only
- Volvo XC90 (2003–)2008–2010Engine B6324S, B8444S only
- Volvo XC90 (2003–)2011Engine B6324S5, B8444S only
- Volvo XC90 (2003–)2012–2014Engine B6324S5 only
What does this fault code mean?
The engine control module (ECM) continuously monitors the voltage from the rear heated oxygen sensor on bank 1, which is the cylinder row nearest the front with cylinders 1, 3, 5 and 7. The code is set when the voltage falls outside the permitted range, and the signal has stuck in the rich position.
Possible causes
- Signal wire shorted to supply voltage
- Internal fault in the rear oxygen sensor on bank 1, sensor 2
What you can do
- 1Start the engine, let it idle for a while, and then read the status of the code
- 2Use a multimeter to check that the signal wire is not shorted to supply voltage
- 3Check the connectors to the rear oxygen sensor for contact resistance and oxidation. Rust-dissolving spray and grease should not be used in the connector
- 4If the wiring is in order, try a new rear oxygen sensor
- 5If the fault remains, have a workshop diagnose further
Symptoms you may notice1
- Malfunction indicator lamp (MIL) lit
What the fault can affect1
- Rear oxygen sensor control is switched off
General guidance for car owners. Diagnosis on the car can point to a different cause.