VOLVO
ECM-P224600 - O2 Sensor Reference Voltage Circuit High - Bank 1, Sensor 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:
5 modelsS80 (2007–), V70 (2008–), XC60 (2009–), XC70 (2008–), XC90 (2003–)
Show models by year and engine (8)
- Volvo S80 (2007–)2007–2008Engine D5244T4, D5244T5 only
- Volvo S80 (2007–)2009Engine D5244T10, D5244T4, D5244T5 only
- Volvo V70 (2008–)2008Engine D5244T4, D5244T5 only
- Volvo V70 (2008–)2009Engine D5244T10, D5244T4, D5244T5 only
- Volvo XC60 (2009–)2009All engines except: B6304T2
- Volvo XC70 (2008–)2008All engines except: B6324S
- Volvo XC70 (2008–)2009Engine D5244T4, D5244T5 only
- Volvo XC90 (2003–)2013–2014Engine D5244T18, D5244T5 only
What does this fault code mean?
The module reads the front heated oxygen sensor, which reports on the fuel and air mixture. The code is set when the signal from the sensor is faulty, here at a high level.
Possible causes
- Signal wire shorted to supply voltage
- Short to earth on the signal wire
- Open circuit in the signal wire
- Contact resistance or oxidation in the connections
- Earth wire shorted to supply voltage
- Damaged oxygen sensor
What you can do
- 1Check that the fuses are intact
- 2Check the sensor connections for contact resistance and oxidation. Rust-dissolving spray and grease do not belong in the connector
- 3Use a multimeter to check that the signal wire and the earth wire are not shorted to supply voltage
- 4If the wiring is in order, try a new oxygen sensor. Have a workshop diagnose further if the fault remains
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.