Diagnostic Trouble Code (DTC) Information ECM-4A30
Condition
The engine control module (ECM) checks the signal cable for the starter motor relay coil.
The diagnostic trouble code (DTC) is stored if the engine control module (ECM) detects that the signal is too high, too low or missing.
The diagnostic trouble code (DTC) is diagnosed by the engine control module (ECM) when the ignition switch is in position 3 (start position).
Substitute Value
None.
Possible Source
Signal too high
- Short-circuit to ground in the signal cable
- Damaged starter motor relay.
Signal too low
- Short-circuit to supply voltage in the signal cable
- Damaged starter motor relay.
Signal missing
- Open-circuit in the signal cable
- Damaged starter motor relay.
Fault symptom[s]
- The starter motor does not turn.