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INSTALLATION GUIDE
Digital RPM Activated Window Switch
Part Number: N3210
Caution: Do NOT allow any of the switch wires other than the RED
(power source) wire to touch any 12V source, as this will cause the
hardware to malfunction, destroying the functionality of the switch.
* Always disconnect the battery
before
attempting any electrical work on your vehicle.*
WIRING INSTRUCTIONS
Note: Automotive circuit connectors are the preferred method of connecting wires. However, you
may solder if you prefer.
Note:
If doing an LS engine swap, pick up the tach signal wire from the ECM/ECU and then set the tach
switch to 4-cylinders.
INSTALLATION:
Power
–
Red
Connect to a sw12V source.
Ground
–
Black
Connect to an engine block ground.
Tach Input –
Grey
Connect to the negative terminal of the ignition coil, or if using a high energy CD
ignition, connect to the TACH output of your ignition system instead of the coil.
Tach Output
–
Blue
Connect to the negative/ground side of the device that you want to activate at the
desired RPM.
Warning:
Most Late Model vehicles that don’t have a distributor, or have multiple coils will
require the use of a Tach Adapter.
If the device to which the blue wire is attached draws more than 3 amps, a relay must be used to
drive that device or damage will occur to the unit.
If your vehicle has a
separate ignition coil
, connect the gray wire to the
negative
(-) side of the coil –
the wire that goes to the points or electronic ignition module.
If your vehicle has a
GM HEI ignition
, connect to the terminal marked ‘TACH’, or, on some systems, a
single white wire with a spade terminal.
