P00D1-29 - HO2S Heater Control Circuit Range/Performance (Bank 1 Sensor 1) - Signal invalid: Action
- Refer to the applicable SYSTEM WIRING DIAGRAMS and check heated oxygen sensor circuit for short circuit to ground, short circuit to power, open circuit, high resistance
- Inspect connectors for signs of water ingress, and pins for damage and/or corrosion
- Refer to Electronic Engine Controls V6 S/C 3.0 L - Petrol - Heated Oxygen Sensors (HO2S), Diagnosis and Testing - pinpoint test A