DESCRIPTION:This code sets when the diesel oxidation catalyst (DOC) outlet temperature is greater than 760°C (1400°F) for more than two seconds.

MONITORED PARAMETER:Diesel oxidation catalyst temperature sensor.

TYPICAL ENABLING CONDITIONS:Always on

MONITOR SEQUENCE:None

EXECUTION FREQUENCY:Continuous when enabling conditions met.

TYPICAL DURATION:Two seconds

DASH LAMPS:1. MIL2. CEL

ENGINE REACTION:25% Derate

VERIFICATION:Parked regeneration

NOTE: If any other codes active, fix those first.

PROBABLE CAUSES:1. DOC outlet temperature sensor harness/connector.2. DOC outlet temperature sensor.3. Failed fuel injector.4. Remove the DPF and inspect for coolant or oil contamination. If found, find source of leak.5. Perform a parked regen.6. Electrical connections upstream of the ECM can also cause this code: ATD harness 10-pin connector, VIH 31-pin connector, and MCM 120-pin connector.7. DPF inlet pressure sensor.8. DPF inlet pressure sensor harness/connector.