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P.24 Installation Guide CT-5000
Example: Activating a Positive Trunk release switch
Problem: The vehicle's power trunk release switch is activated by a positive (+) pulse, and the
remote start module's Trunk output is negative (-).
Solution: A relay is used to invert the negative signal from the start module to a positive signal
before it is sent to the OEM switch.
The relay connections:
85: Connects to the start module's Trunk release output wire. This becomes the negative
side of the coil.
86: Connects to a fused +12 Volts source. This becomes the positive side of the coil.
87: Connects to a fused +12 Volts source. This becomes the supply for the positive trunk
release.
87A: No connection. This terminal is not used in this application.
30: Connects to the OEM trunk wire in the vehicle.
Comments: At rest, the trunk switch is allowed to operate normally. When the Trunk button on the
remote is pressed, the negative Trunk output from the remote start module triggers the
relay. When the relay is activated, +12 volts from 87 is sent through 30, and the OEM
trunk switch is activated, by the positive pulse.
Interruption:
Example: Creating a Starter Kill relay to prevent unauthorized starting of the vehicle.
Problem: The OEM starter circuit needs to be disabled only when theft is attempted.
Solution: A relay is used to interrupt the OEM starter wire. There is an output on the remote
start module especially for this purpose ( Starter Kill output).
The relay connections:
85: Connects to the Starter Kill output wire from the remote start module. This becomes
the negative trigger for the coil.
86: Connects to the vehicle's Ignition wire. This becomes the positive trigger for the coil.
87: No connection. This terminal is not used in this application.
The vehicle's OEM start wire is cut. The side of the wire that is still connected to the Ignition switch
becomes the “Key Side” of the starter wire. The side of the wire that is still connected to the starter
motor becomes the “Starter Side” of the of the starter wire.
87A: Connects to the “Key Side” of the cut OEM starter wire.
30: Connects to the “Starter Side” of the cut OEM start wire.
Comments: At rest the relay is not active, and +12 volts on the starter wire passes through the
relay (through 87A & 30) normally. The Starter Kill output wire on the remote start
module is activated when the LOCK button is pressed on the remote control. When a
theft attempt happens, and the thief powers the Ignition circuit (to hot wire the vehicle),
and the Starter Kill was ARMED (by the LOCK button on the remote) the starter kill
relay activates. The OEM start wire is now open, (does not make connection) because
30 is no longer connected to 87A, and the vehicle is unable to start.
Strengthening current:
Example: Strengthening an output
Problem: A vehicle has a negative (-) trigger Trunk release wire. The module has a negative
Trunk release output wire. The remote start module is unable to supply the necessary
current to activate the vehicle's Trunk release wire.
Solution: A Relay is used to provide the necessary negative current to active the vehicle's Trunk
release wire.
The relay connections:
85: Connects to the start module's Trunk release wire output. This becomes the Negative
trigger for the coil.