Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information ECM-660B

Condition
If there is an open-circuit in the circuit controlling the malfunction indicator lamp (MIL) the engine control module (ECM) interprets this as a fault and the diagnostic trouble code (DTC) is stored.

Substitute value
- None.

Possible source
- Open-circuit in the signal cable
- Open-circuit in the power cable.

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