Component Inspection

Engine Control
P0030 HO2S Heater Control Circuit (Bank 1 / Sensor 1) - Component Inspection

Component Inspection

Check HO2S (B1/S1) Heater resistance
1. IG "OFF" and disconnect HO2S (B1/S1) connector.
2. Measure resistance between power and control terminals of HO2S (B1/S1) heater (Component Side)

Specification : 8.1 - 11.1 Ohms at 21 °C (69.8 °F)




3. Is the measured resistance within specification?