Installation Guide | SKU: MMFAN-PWN-U | PWN Fan Controller 2
PWM FAN CONTROLLER
IMPORTANT SAFETY INFORMATION
& INSTALLATION INSTRUCTIONS
Continued on next page
IMPORTANT SAFETY INFORMATION
›Mishimoto recommends you use safety glasses and protective
gloves during the installation of our products
›Raise vehicle only on jack stands or on a vehicle lift
›Allow vehicle to cool completely prior to attempting installation
›Do not run the engine or drive the vehicle while overheating;
serious damage can occur
›Please dispose of any liquids properly
›Mishimoto is not responsible for any vehicle damage or
personal injury due to installation errors, misuse, or removal
of Mishimoto products
›If you need any assistance while installing our products,
reach out to our Customer Service Team at 1-877-GOMISHI
SUPPLIED PARTS
REQUIRED TOOLS
BEFORE BEGINNING THE INSTALLATION,
DISCONNECT THE NEGATIVE (-) CABLE
FROM THE VEHICLE’S BATTERY
INSTALLATION INSTRUCTIONS
1. Install wire terminals or connectors appropriate for your specic
application to the ends of the red, yellow, and black wires. Be sure to
protect the connections with heat shrink or electrical tape.
2. Determine an appropriate mounting location for the fan controller.
The controller should be mounted away from extreme heat sources,
such as exhaust headers. Using the brackets as templates, mark
the location of the mounting holes and drill four (4) holes with
a 5/32” drill bit. Mount the fan controller with the four (4) supplied
#10 screws.
3. Determine an appropriate mounting location for the self-resetting
circuit breaker. The circuit breaker should be mounted away from
extreme heat sources, such as exhaust headers. Using the bracket
as a template, mark the location of the mounting holes and drill two
(2) holes with a 7/64” drill bit. Mount the circuit breaker with the two
(2) supplied #6 screws.
4. Make the connections as shown in the wiring diagram.
(Shown on page 3)
The red wire from the controller is the 12V (+) input wire and must
be connected directly to the battery’s positive (+) terminal.
The black wire from the controller is the controller ground (-) and
must be connected directly to the battery’s negative (-) terminal.
These wires must be connected directly to the battery to ensure the
controller receives a clean signal.
The yellow wire is the output signal from the controller and gets
connected to the fan(s) positive wire. The fan(s) may be grounded
either directly to the battery negative (-) terminal or to a chassis
ground. The total amp draw of the connected fans must
not exceed 50A.
The green wire from the controller is the optional A/C override
circuit. If using the A/C override circuit, splice the green wire into
the 12V (+) wire from the A/C compressor. This will turn the fans on
when the A/C is turned on, even if the coolant temperature is below
the controller’s activation temperature. Alternatively, the green wire
can be connected to a 12V switch to be used as a manual override.
When the A/C override circuit is activated, the fan(s) will turn on at
30% speed until the coolant temperature reaches the controller’s
activation temperature. Once the activation temperature is reached,
the fan(s) will then increase from 30% to 100% speed.
(1) PWM FAN CONTROLLER
(1) PUSH PROBE TEMP SENSOR
(1) NPT PROBE TEMP SENSOR
(4) #10 SCREWS
(2) #6 SCREWS
DRILL
5/32” DRILL BIT
7/64” DRILL BIT
SMALL FLATHEAD SCREWDRIVER
WIRE CUTTER/STRIPPER/CRIMPER
WIRE TERMINALS/CONNECTORS
ELECTRICAL TAPE OR HEAT SHRINK
TEFLON TAPE (IF USING
THE NPT PROBE TEMPERATURE SENSOR)
