P. 18
Installation
Guide
CT-3460 TW
Without the pedal pressed:
♦
test the wire with the Ignition OFF
♦
test the wire with the Ignition ON
♦
test the wire with the Key in the start position
With the pedal pressed:
♦
test the wire with the Ignition OFF
♦
test the wire with the Ignition ON
♦
test the wire with the Key in the start position
With this information for every wire at the switch, determining what type of clutch
switching system you have will be easy.
Direct Feed:
The simplest type of system to test and bypass is the “Direct Feed” system. This circuit
simply interrupts the +12v signal starter wire from the ignition switch to the starter
solenoid. There are 2 wires in this circuit, the “key side” wire which goes from the clutch
pedal to the Ignition switch, and the “solenoid side” which goes from the clutch switch to
the starter motor. When the key is turned to the start position without pressing the pedal,
you will test 12v only on one of the wires at the clutch switch, this is the key side. When
the pedal is pressed down, and the key is in the crank position, the other wire will also
read 12 volts; this is the solenoid side wire. To confirm you have a direct feed clutch
switch, hot wire the “solenoid side” wire with a fused +12 volts and the starter motor will
crank. Connect the starter output from the remote starter to solenoid side wire.
Note:
In the next two systems a Relay in the vehicle interrupts the start wire between the
Ignition switch and the starter motor. With the key in the start position, and the clutch
pedal pressed, the relay energizes and allows the start signal to reach the starter motor.
In these systems a wires from the clutch triggers the relay, when the pedal is pressed.
There will be another wire at the clutch switch that supplies the signal to the trigger wire
(either positive or negative, depending on the system).
Negative:
In a Negative system, when the clutch is pressed; a negative signal is sent to the relay,
the relay energizes, when the Key is turned to the start position the 12volts from the start
wire is allowed to pass through the relay and to starter motor. One of the wires at the
clutch will test as negative, this is the supply wire. The relay's negative trigger wire will
only show negative when the pedal is pressed (some vehicle's also require the Ignition
system to be powered). To confirm you have a Negative system, hot wire the negative
trigger wire by jumping it to a ground source with your fused test jumper. You should now
be able to turn the key to the start position and engage the start motor without pressing in
the clutch pedal. If there is nothing else connected to the Ground Out When Running
(G.O.) wire from the remote start module, the G.O. wire should be strong enough to
trigger the vehicle's clutch relay. If there are other devices or modules connected to the
G.O. Wire, a relay (and diodes) may have to be added to strengthen the negative current
going to the clutch bypass.
Positive:
Very similar to the negative system, except that the vehicle's clutch relay is trigger by 12
volts, instead of a negative signal. In a Positive system, when the clutch is pressed; a
positive (12 volts) signal is sent to the relay, the relay energizes, when the Key is turned
to the start position the 12 volts from the start wire is allowed to pass through the relay
