DTC ECM-6220

Condition







Diagnostic trouble code (DTC) ECM-6220 is stored if the signal to the engine cooling fan (FC) motor for the control modules is too high, too low or missing.The signal is diagnosed at ignition on or engine running.

Substitute value
- None.

Possible source

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

Signal too low:
- Short-circuit to ground in the signal cable
- Defective engine cooling fan (FC).

Signal missing:
- Contact resistance in the terminals
- Open-circuit in the signal cable
- Open-circuit in the power cable
- Defective engine cooling fan (FC).

Fault symptom[s]
- Malfunction indicator lamp (MIL) lit.