Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information ECM-5100

Condition
One or more diagnostic trouble codes (DTCs) which affect emissions are stored in the transmission control module (TMC).
The diagnostic trouble code (DTC) is stored if the engine control module (ECM) registers that the transmission control module (TCM) has transmitted a request to light the malfunction indicator lamp (MIL).
The diagnostic trouble code (DTC) can be diagnosed when the ignition is switched on.

Substitute value
- None.

Possible source
- Fault trace the transmission control module (TCM).

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