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WIRING THE 12 PIN HARNESS:
BLACK: Chassis Ground Source
Connect the BLACK wire to a known vehicle ground source or to a solid clean metal part of the chassis. Be
certain to remove any paint or grease and secure this wire with a self taping screw and ring terminal.
BLACK w/WHITE: Neutral Safety Input (-)
The BLACK w/ WHITE neutral safety input is required for remote start operation. Connect the BLACK w/WHITE
wire to the vehicle wire at the shifter that will show ground when in park or neutral, and voltage in all other
positions.
GRAY: Hood Pin Input (-)
Connect the GRAY wire to the hood pin switch provided. This wire will be routed through the firewall into the
engine compartment. It is necessary to use an existing grommet when passing wires through the firewall to
prevent short circuiting. This is an important safety feature of CA 421, and failure to use this feature can result in
serious injury. Route the wire to the pin switch and connect it using the bullet connector provided.
BROWN w/ RED Wire: Positive Brake Input
Any time +12 Volts is applied to the BROWN w/RED wire, the Remote Start system will stop operating, even if
the signal is received from the transmitter. If the brake light switch in the vehicle sw12 Volts to the brake
light circuit, connect the BROWN w/RED wire to the output of the brake light switch. If the brake light switch in
the vehicle switches ground, do not use the BROWN w/RED wire; see GRAY w/BLACK wire.
Note: The BROWN w/RED wire is used for programming, if the brake switch in the vehicle switches ground, a
normally open push-button switch must be added. During the program sequence, when the brake pedal is
pressed
and released, this switch will be used in it's place. If the installation of this switch is necessary,
connect one end of the normally open push button switch to the BROWN w/RED wire, and connect the other
end of the switch to a fused +12 volt source.
Brake Switch Positive Shutdown Detail
