Flex-a-Lite FAL 425 Installation Instructions Manual
FAL #425
86-92 Toyota Supra
Electric Cooling Fan
Be sure the engine is cool before you start working on your car. For added safety, disconnect your
battery to keep the fans from coming on while you are working under the hood.
FAN INSTALLATION (Diagram A)
Step 1:Unbolt and remove OEM fan shroud from radiator. Retain the bolts as they will be used to
secure the FAL fan.
Step 2:Remove the four bolts holding the fan clutch and fan assembly to the water pump. It is very
important that you re-install the four nuts back onto the pulley. You may need to use washers to “shim”
the bolts.
Step 3:The FAL fan has cutouts in the bottom for the tabs on the radiator, to prevent interference with
the water pump. Mount the supplied bracket to the top of the fan using the included screws.
Step 4:Place the tabs into the cutouts on the bottom of the fan. Pivot the fan forward and determine
which of the supplied spacers are required for your application. Using the factory bolts, secure the
fan assembly to the radiator making sure the bulb seal is pressed to the core of the radiator.
Installation Instructions
Diagram A
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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. Y ou 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)
colored
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 connect yet.
motor wires at fan. Attach a length of the large diameter (12 AWG)
black
Colored
red
wire to the
wire to the
black
motor
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.
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
Using a voltmeter , determine which wire coming from the compressor is the
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.
positive
wire that triggers the A/C compressor using the small diameter green (14 A WG) wire.
Use the blue female
positive
trigger wire. Use
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