Possible Causes
NOTE:
Rationality check at start - Exhaust gas temperature sensor temperature above threshold (879.96°C)
- The powertrain control module has determined failures where some circuit quantity, reported via serial data, is above a specified range
- Exhaust gas temperature sensor - Pre catalytic converter circuit short circuit to ground, short circuit to power, open circuit, high resistance
- Connector is disconnected, connector pin is backed out, connector pin corrosion
- Exhaust gas temperature sensor - Pre catalytic converter failure