Diagnostic Trouble Code (DTC) Information ECM-248D
Condition
The diagnostic trouble code (DTC) is stored if the engine control module (ECM) registers that there is a short-circuit to supply voltage or a short-circuit to ground in the signal cables for the front heated oxygen sensor (HO2S).
Substitute Value
None.
Possible Source
- Short-circuit in the signal cables
- Damaged front heated oxygen sensor (HO2S).
Fault symptom[s]
- Malfunction indicator lamp (MIL) lit.