Flex-a-Lite 425 86-92 Toyota Supra Electric Cooling Fan - Manual (Page 2)

Fan Wiring Instructions
Step 1: Locate mounting point for control
Locate a mounting point for control near inlet side of radiator. Control needs to be placed within 18" of
radiator inlet hose. You may want to mount next to radiator on fender well. Mount control using screws
provided.
Step 2: Wire the fan motors (refer to Wiring Diagram, below)
Using the bullet connectors provided, attach a length of the large diameter (12 AWG)
red wire to the
colored motor wires at fan. Attach a length of the large diameter (12 AWG) black wire to the black motor
wires at the fan. Once the fan is in place, these will attach to the control module. If mounting the control
somewhere in the engine compartment, leave enough wire to reach the control module, but do not con-
nect yet.
Step 3: Connect the motor wires to the control module using supplied female connectors
(Red wire to the "M+" terminal and black wire to the "M-" terminal).
Step 4: Disconnect the negative battery lead for safety while finishing the wiring. Use the large diameter
red wire to run power directly from the battery positive (+) terminal to the "B" terminal on the control
module. Connect the fuse holder in-line with this wire, as shown, but do not insert the fuse yet. Use the
blue female, ring, and butt connectors provided.
Step 5: Use the large diameter black (12 AWG) wire to run from the negative (-) battery terminal to the
"G" terminal on the control module. Use the blue female connector and ring connector provided.
Step 6: Use the small diameter red wire (14 AWG) to connect the "+" terminal on the control module to a
positive power source.
NOTE: Attaching this wire to an ignition-controlled source will shut off the
fan when the engine is turned off. Attach this wire to an uninterrupted (always hot) power
source to allow the fan to continue running after the engine is shut off.
Use the blue female
connector and fuse taps (included) if necessary.
Step 7: (Optional) For air conditioning control (if desired) connect the "C" terminal on the control module
to the
positive wire that triggers the A/C compressor using the small diameter green (14 AWG) wire.
Using a voltmeter, determine which wire coming from the compressor is the positive trigger wire. Use
the 3-way connector (included) to tap into this wire and send a signal to the fan control module. The fan
will cycle on and off with the A/C clutch when the A/C is turned on.
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