Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information ECM-6600

Condition




The engine control module (ECM) checks the signal cable for the starter motor relay coil.
The diagnostic trouble code (DTC) is stored (high signal) if the engine control module (ECM) detects that the signal is high despite the ignition switch being in position 2 (ignition position).
The diagnostic trouble code (DTC) is stored (low signal) if the engine control module (ECM) detects that the signal is low despite the ignition switch being in position 3 (starting position).

Substitute value
- None.

Possible source

Signal too high
- Short-circuit to supply voltage in the signal cable
- Damaged starter motor relay.

Signal too low
- Short-circuit to ground in the signal cable
- Open-circuit in the signal cable
- Damaged starter motor relay
- The 12 volt supply to the starter motor is not functioning.

Fault symptom[s]
- The starter motor does not turn
- The starter motor turns but the engine does not start.