Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information

Condition




Diagnostic trouble code (DTC) ECM-A3 is stored if the control module registers a supply voltage from the system relay for more than 2 seconds with the ignition on and the engine not running (signal too high) or that the signal from the power supply cable for the system relay is too low (signal too low).

Substitute value
None.

Possible source

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

Signal too low:
- Open-circuit in the power cable
- Defective system relay.

Fault symptom[s]
- The engine fails to start
- Malfunction indicator lamp (MIL) lit.