Diesel Data: Automotive Repair

P0031

DTC P0031 HO2S HEATER CONTROL CIRCUIT LOW (BANK 1 SENSOR 1)

DTC DETECTING CONDITION:
- Detect as soon as malfunction occurs.
- GENERAL DESCRIPTION

CAUTION: After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode.

Wiring Diagram:






Step 1-4: