Component Inspection

Engine Control

P0038 HO2S Heater Control Circuit High (Bank 1 / Sensor 2) - Component Inspection

Component Inspection

Check HO2S (B1/S2) Heater resistance
1. IG "OFF" and disconnect HO2S (B1/S2) connector
2. Measure resistance between power and control terminals of HO2S (B1/S2) heater (Component Side)

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




3. Is the measured resistance within specification?