Powertrain
generic / SAE
P00D3
HO2S Heater Control Circuit Range/Performance Bank 2 Sensor 1
Heater control of bank 2 sensor 1 is electrically OK but does not heat the sensor as expected — element aged or wiring resistance high.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number– / D3
Possible causes
- Heater element aged high
- Sensor element aged beyond calibration window low
- Sensor mounting loose - signal damping low
Inspection / repair
- Difficulty: easy
- DIY: possible
- Estimated cost: 60–300 €
- Estimated time: 0.3–1.5 h
- Component: oxygen sensor b2s1
- MIL / check engine light
- emissions-relevant
- drive cycle required
Sources
References
sae:J2012