Possible Causes
NOTE:
Measured oxygen concentration implausibly low compared to model oxygen concentration for Sensor 1 Bank 1
- The powertrain control module has determined failures where some circuit quantity, reported via serial data, is below a specified range
- Other related DTCs
- Heated oxygen sensor heater circuit short circuit to ground, short circuit to power, open circuit, high resistance
- Connector is disconnected, connector pin is backed out, connector pin corrosion
- Heated oxygen sensor failure