in ecu i have only this fault code 10c100 componentm4/7 combustion engine and air conditioning with integrated control fan motor has a short to positive.
i change the electric fan motor and no error until coolant temp is 82degC and start with this error and intermitent start stop.
after engine cool down and i can delete error, i can test motor ok and no fault.
if i unplug the fan i have fault that is short to ground or open circuit, and also if i cut the sam-fan wire the fault is only one and the fan also is spinning.
i check the wire from fan to sam and is ok . directly to f22 15A. water sensor ok,
can any one tell me what to check?