Powertrain
generic / SAE
P0053
HO2S Heater Resistance Bank 1 Sensor 1
The heater resistance of the bank 1, sensor 1 oxygen sensor is outside its specified range. Sensor heater aging or short between heater and signal.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number– / 53
Possible causes
- Heater element aged, resistance high high
- Oxygen sensor failed medium
Inspection / repair
- Difficulty: easy
- DIY: possible
- Estimated cost: 60–300 €
- Estimated time: 0.3–1.5 h
- Component: oxygen sensor b1s1
- MIL / check engine light
- emissions-relevant
- drive cycle required
Sources
References
sae:J2012