fan relay

[cutt]

anyone knnow where the cooling fan relay is?

[03 Merc]

Cutt,

The short answer is there is not one...or at least I couldn't find it in the references.. I could not find any Marauder specific changes from the GM info so here it is:

Quote:

Fan Control
The PCM monitors certain parameters (such as engine coolant temperature, vehicle speed, A/C on/off status, A/C pressure, etc) to determine engine cooling fan needs.

For Variable Speed Electric Fan(s):

The PCM controls the fan speed and operation using a duty cycle output on the Fan Control - Variable (FCV) circuit. The fan controller (located at or integral to the engine cooling fan assembly) receives the FCV command and operates the cooling fan at the speed requested (by varying the power applied to the fan motor).

CROWN VICTORIA/GRAND MARQUIS, TOWN CAR: FCV DUTY CYCLE OUTPUT FROM PCM (negative duty cycle) FCV Duty Cycle Command (NEGATIVE (-) duty cycle) Cooling Fan Response/Speed
0-<5% Fan off, controller inactive
5-<10% Fan off, controller is in active/ready state
10-90% Linear speed increase from 20% to 100%
>90-<95% 100%
95-100% Fan off

End Quote

The wiring diagram does not show a fan relay. The fan is feed by a 10 guage (Red/Black) circuit with a 50Amp fuse which is always hot. The other side of the circuit is controlled by the PCM as shown above...

[cutt]

i think im going to put a switch on the fan so i can cool it off between runs quicker.