Possible Causes
- The powertrain control module measured a signal voltage above a specified range but not necessarily a short circuit to power, gain too high
- Other related DTCs
- Air induction system leakage
- Exhaust gas temperature sensor post DPF soot contamination
- Exhaust gas temperature sensor post DPF circuit short circuit to ground, short circuit to power, open circuit, high resistance
- Connector is disconnected, connector pin is backed out, connector pin corrosion
- DPF system for mechanical integrity
- Diesel oxidation catalyst mechanical integrity
- Exhaust gas temperature sensor post DPF failure