Non working Cooling Fan
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- Reading: Non working Cooling Fan
2003 Mustang Convertible 3.8L V6 Base
-Replaced under the hood fuse.
-Checked plug to fan only 1.1 milivolts ..Supposed to be 12V
What fused under the dash fuse box is related to the power of the cooling fan??
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Any more to that diagram? Looks like you're missing 23-44 on it.
check the relay and the switch
Do you know where that is located?
>>14101381
Thats your job son. Trace the wire. Try fuse 24 or one of the engine control fuses.
>>14101381
is it a switch inside the car? then the relay will probably be up near the fan.
is it an ecu controlled switch? then the relay will probably be on a relay panel near the ecu.
you will need a wiring diagram to find them
apparently new cars have the relays built into or around the fuse box too, so check there.
>>14101432
thats a sensor and plug diagram.
but, check the battery junction box for relays
u should have a service manual t b h f a m
>>14101335
Is the dashboard temp gauge working correctly?
Could be the coolant temperature sensor; it controls both the dash gauge and the fan.
>>14101335
Relay is built into the "Constant Control Module." A giant 24-pin combination relay on the passenger side inner fender that also controls the A/C clutch, the fuel pump, and both speeds on the dual-speed cooling fan.
Cardone # 73-70012.
I doubt it's the issue; seems like it would be highly unlikely for both the high & low speed relays in the module to go bad at the same time.
