Scania fault code 40994
Code 40994 is used by 3 different Scania systems. Choose the control unit shown in your diagnostic tool:
CCU
Fan motor, short circuit to earth
The cabin comfort control unit has interpreted a fault of the signal to the fan motor.
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ACC Automatic Climate Control
Fan motor M3
Fault in the signal to the fan motor.
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MCC
Fan motor M3
Fault in the signal to the fan motor.
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