Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information ECM-250D

Condition




The diagnostic trouble code (DTC) is stored if the engine control module (ECM) registers that the resistance in the preheating circuit for the front heated oxygen sensor (HO2S) (bank 2) is too low.

Substitute value
- None.

Possible source
- Damaged front heated oxygen sensor (HO2S).

Fault symptom[s]
- Malfunction indicator lamp (MIL) lit.