Diesel Data: Automotive Repair

Component Inspection





Engine

Engine Control - P0031 HO2S Heater Control Circuit Low (Bank 1 / Sensor 1) - 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 resistance within the specification?