Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information ECM-6100

Condition




The diagnostic trouble code (DTC) is stored if the engine control module (ECM) detects a short-circuit to supply voltage (high signal), short-circuit to ground or an open-circuit (low signal) in the control signal circuit between the engine cooling fan (FC) control module and the engine control module (ECM).
The diagnostic trouble code (DTC) is stored if the engine cooling fan (FC) control module registers that the fan blades are obstructed or that there is no power supply.

Substitute value
- Engine cooling fan (FC) switched off.

Possible source

Signal too high
- Short-circuit to supply voltage in the signal cable
- Damaged engine cooling fan (FC) control module.

Signal too low
- Short-circuit to ground in the signal cable
- Open-circuit in the signal cable
- Damaged engine cooling fan (FC) control module.

Faulty signal
- Obstructed fan blade
- Dirt causing the engine cooling fan (FC) to stick
- Damaged engine cooling fan (FC) control module.

Fault symptom[s]
- Overheating engine.