Component Inspection

P0057 HO2S Heater Control Circuit Low (Bank 2 / Sensor 2)

Inspection/Repair - Component Inspection

Component Inspection

Check HO2S (B2/S2) Heater resistance
1. IG "OFF" and disconnect HO2S (B2/S2) connector
2. Measure resistance between power and control terminals of HO2S (B2/S2) heater (Component Side)

Specification :3.3 Ohms at 21°C (69.8°F)





3. Is the measured resistance within specification?