Prestige Platinum APS-901C Installation Manual page 6

3 Black Wire: 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 tapping screw and ring terminal.
4 Gray w/ Black Wire: Negative Inhibit Input 2
Any time the gray w/ black tracer wire is grounded, the Remote Starter will stop operating, even if the signal is
received from the transmitter.
If the brake light switch in the vehicle switches ground to the brake light circuit, connect the Gray w/ Black trace wire
to the output of the brake light switch. If the brake light switch in the vehicle switches +12 Volts, do not use the Gray
w/ Black wire; see Brown w/ Black tracer wire.
5 Light Blue Wire: Ignition 3 / Ground While Running Output
This wire provides a 300mA ground output that becomes active 3 seconds before the Remote Start Unit initial-
izes, and remains grounded while running plus an additional 2 seconds after the Remote Start Ignition 1 turns
off. In all of the applications described below, a relay will be required. The Light Blue wire can be used to
accommodate the following situations:
A. Shock Sensor By Pass:
If there is Shock Sensor used with an alarm system and it is not shunted during the Remote Start activation
period, then vibration from the running vehicle can cause the alarm to trigger. In this case, connect the Light
Blue Wire to terminal #86 of a external relay. Connect terminal #85 of the relay to a fused + 12 volt battery
source. Cut the shock sensor trigger wire and connect one end of the cut wire to terminal #30 and the other
end of the cut wire to terminal #87a. Just before the Remote Start unit is activated, the relay contacts will open,
preventing the shock sensor's operation until the Remote Start unit shuts off.
B. Ignition 3 Output:
Some newer vehicles use a third ignition wire, which is required to start and keep the vehicle's engine
running. If this is the case, connect the Light Blue wire to terminal #86 of an external relay. Connect terminal
#30 & #85 to a fused + 12 volt battery source rated for a minimum of 25 Amp. Connect terminal #87 to the third
ignition wire in the vehicle.
C. GM VATS Key Override:
If the vehicle has the General Motors VATS system installed, you will need to bypass the system while the
vehicle is operating under the control of the Remote Start Unit. To Do This;
1. Measure the resistance of the resistor pellet on the ignition key then select a resistor within 5% of the key's
value from the resistor pack supplied.
2. Locate the pair of VATS wires in the vehicle, usually a pair of thin gauge wires running from the ignition switch
to the VATS control module.
Note: These wires are typically White w/ Black trace and Violet w/ Yellow trace, however in later model Cadillacs,
they are run through an orange sleeve, and are either both Black, both Yellow, or both White wires.
Consult the factory service manual for additional information.
3. Connect the Light Blue Wire from the Remote Start Unit to terminal #86 of an external relay. Connect terminal
#85 of the relay to a fused + 12 volt battery source.
4. Cut (#1) wire (as shown), and connect the ignition switch side of the cut wire to terminal #87a of the relay.
Connect the other side of the (#1) wire to terminal #30.
5. Connect the previously selected resistor from terminal #87 to the second (#2) wire (as shown).
Note: The above information and following diagram is for the GM VATS system only.
6 Green/Yellow Wire: Diesel Wait To Start Input
The Green/Yellow wire of the 12 pin connector will connect to a diesel vehicles glow plu wire. When the unit receives
a start command, this wire must go to + 12 then to ground to allow the crank sequence to begin. When ignition
#1 is activated by the remote start unit, the glow plug circuit gets energized, (+ 12 volts), when the glow plug circuit
of the vehicle drops the + 12 volts, which effectively grounds the wait to start input, then 500mS later the starter will
engage. This wire can also be connected to the Glow Plug Bulb wire in the vehicle if this bulb wire gets + 12 volts
when the ignition comes on and drops low when the glow plug circuits temperature is reached. Be sure to fuse
the wire with a 1 Amp Fuse when connecting to a high current circuit such as a factory glow plug wire. The fuse
should be installed as close to the high current wire as possible. If you are installing this unit in a Gasoline vehicle,
this wire is not used.
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