ProStart CT-3271 Guía de instalación descargar pdf (Pagina 10)

p.10 CT-3271

Normally Closed ( N/C ):

Note: There are different types of this system used by various vehicle manufacturers; the following is used to

illustrate how these systems work in general.

A Relay is also used in these types of systems to interrupt the starter wire. In the previous two examples, the

clutch was bypassed by engaging the clutch relay; with this system you bypass the clutch by preventing the

clutch relay from engaging. When the Ignition Key is turned to the start position the relay energizes and

interrupts the start wire, when the pedal is not pressed. When the Ignition key is turned to the start position, and

the pedal is pressed, the relay does not energize, and the start signal reaches the starter motor.

In a N/C system the supply wire is connected to the relay's trigger wire at rest (pedal not pressed). When the

pedal is pressed, the connection is broken between the supply wire and the relay's trigger wire (this disengages

the relay). To verify that you have a N/C system, disconnect the clutch switch and the vehicle should start

without the clutch pedal being pressed. When you test the trigger wire with your logic probe, the trigger wire will

test as 12 volts or negative when the pedal is not pressed, it should read as an open circuit ( or Float) when the

pedal is pressed.

PLEASE NOTE

Your probe may also show feed back from the other end of the circuit. The Polarity of the Trigger wire does not

matter in this system, since all you need to do in order to bypass it is to use a relay to interrupt it during remote

starts.

Harness Description

When connecting the Module, it is important to make sure the connector with the Ground wire is

connected first before making the 12-volt connections. Should the unit be powered before being

grounded, there could be serious damage to internal components of the unit. Be careful not to

power up a Module before it is properly grounded. To avoid any accident, it is recommended to

pull out the fuses from their sockets before the installation, and to put them back during the very

last steps.

6-Pin Main Ignition Harness

Wire

Description

RED

+12 V

Battery

Connect to the largest 12 V supply wire at the Ignition harness. Ensure

that the OEM power wire is fused for more than 30 A.

NOTE: certain new vehicles have no suitable 12 volts source at the

IGNITION switch (the 12 Volt wire is too small to supply the necessary

current). In this case, the fuse box, or the B+ connection on the battery

is recommended.

PURPLE (+)

30 A

starter

output

Connect to the Starter wire of the vehicle (at the IGNITION switch).

The source wire should have +12 V with the Ignition Key in the

CRANK position only.

RED

+12 V

Battery

Connect to the largest 12 V supply wire at the Ignition harness. Ensure

that the OEM power wire is fused for more than 30 A.

NOTE: certain new vehicles have no suitable 12 volts source at the

IGNITION switch (the 12 Volt wire is too small to supply the necessary

current). In this case, the fuse box, or the B+ connection on the battery

is recommended.

YELLOW (+)

30 A

Ignition

output

Connect to Ignition wire of the vehicle. The source wire should have

+12 V with the Ignition Key in the IGNITION ON (RUN) and CRANK

positions.

Warning! Some vehicles have more than one IGN wire at the

IGNITION switch for powering the heater blower motor. Use the 5th

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ProStart CT-3271 Guía de instalación Pagina 10

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