Component Inspection

P0031 HO2S Heater Control Circuit Low (Bank 1 / Sensor 1)

Inspection/Repair - Component Inspection

Component Inspection

1. Ignition "OFF"
2. Measure resistance between power and control terminals of HO2S (B1/S1) heater. (Component Side).

Specification :









3. Is HO2S heater resistance display near the specified value?