Communication Line With Cooling Fan ECU

Communication Line With Cooling Fan ECU

CIRCUIT DESCRIPTION
When the magnetic clutch relay is ON and the required outlet air temp. is below a predetermined value, the A/C control assembly turns ON Tr1 inside the ECU. (Terminal voltage at the CFAN terminal is almost 0 V). As a result the cooling fan ECU increases the speed of the cooling fan as required and increases the cooling performance of the condenser.





WIRING DIAGRAM

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Step 3:

INSPECTION PROCEDURE