Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information

Condition




Diagnostic trouble code (DTC) ECM-A3 is stored if the power cable from the system relay is short-circuited to supply voltage or if there is an open-circuit in the circuit and the control module has interpreted it as a fault.

Substitute value
None idle air trim adaptation.

Possible source

Signal too high:
- Short-circuit to supply voltage in the signal cable.
- Faulty system relay.

Signal too low:
- Open-circuit in the signal cable.
- Faulty system relay.

Fault symptom[s]
- Engine does not start.
- Malfunction indicator lamp (MIL) lit.