Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information ECM-23X0

Condition




The engine control module (ECM) checks the signal cable for the injector. The diagnostic trouble code (DTC) is stored if the engine control module (ECM) detects that the signal for the injector is too high, too low or missing.
The diagnostic trouble code (DTC) can be diagnosed at ignition on and with the engine running.

Substitute value
- Fuel trim disabled.

Possible source
- Contact resistance or oxidation, injector connector
- Short-circuit to supply voltage in the signal cable
- Short-circuit to ground in the signal cable
- Open-circuit in the signal cable
- Damaged injector.

Fault symptom[s]
- Malfunction indicator lamp (MIL) lit
- Engine not firing on all cylinders
- The starter motor turns but the engine does not start.