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Remote Start: Testing Your Installation
Mechanical Neutral Safety Switch Considerations:
Mechanical neutral safety switch configurations differ slightly in that they do not offer the same level of safety when
installing a remote start device. Often when the ignition switch is turned off while the gear selector is in any position other
than park or neutral, the mechanical function will not allow the key to be turned to the start position or be removed from
the ignition cylinder. This configuration prevents mechanical operation while the vehicle is in gear but offers no
consideration for electrical operation. Because of this potential problem, this installation requires the additional connection
of a safety wire from the remote start device to the vehicle "Park/Neutral ECM" input or the vehicle key in sensor. This
connection will prevent remote start operation if the key if left in the ignition switch regardless of the gear selector position.
Park Neutral ECM Input:
The Park/Neutral ECM input is the preferred method of installation. This not only maintains the integrity of the
factory circuit, it is also the easiest to install, providing the vehicle you are working on has this ECM input. The
installation required for this application (shown), indicates in the slight reconfiguration of the control switch wiring.
Shown is a typical GM Park/Neutral ECM input circuit. To connect the Remote Start unit to the GM Park/Neutral ECM
input:
1. Locate the Orange/Black reference wire in the "C2" connector found at the ECM is GM B Body vehicles or, locate the
equivalent reference wire in the vehicle you are installing the Remote Start Unit in.
2. Connect the Black/White Neutral Safety Switch Wire from the black 9-pin mini connector to this reference wire.
Note: If the optional remote starts enable toggle switch is installed, connect the one side the enable switch to this
reference wire and connect the other side of the enable switch to the "Black/White" Neutral Safety Switch wire of the
Remote Start unit. The reference diagram below shows a typical GM B Body ECM reference wire and how it is to be
connected to the Remote Start Unit.
Remote Start: Testing Your Installation
Caution! The follow procedure must be performed after the installation of the Remote Start Device. It is the
responsibility of the installing technician to complete these tests. Failure to test the unit in the following manner may
result in personal injury, property damage, or both.
1. Test the "Brake" shutdown circuit: With the vehicle in Park (P), start the vehicle using the remote transmitter,
Once the engine is running, press the brake pedal. The vehicle should shut down immediately. If the vehicle
continues to run, check the brake circuit "White/Violet" wire.
2. Test the "Hood Pin" shutdown circuit: Start the vehicle using the remote transmitter, Once the engine is running,
pull the hood release and raise the hood. The vehicle should shut down immediately. If the vehicle continues to
run, check the hood pin "White/Black" wire connection.
3. Neutral Start Safety Test:
A. Set the vehicle parking brake.
B. Block the drive wheels to prevent vehicle movement.
C. Sitting in the vehicle, turn the ignition switch "On" or "Run" position. But do not start the engine.
D. Step on the brake pedal and shift the gear selector into "Drive" (D).
E. Put you foot over the brake pedal but do not press down on it. Be ready to step on the brake to shut down the
Remote Start Device.
F. Start the vehicle using remote transmitter.
a. If the starter does not engage, the test is complete.
b. If the starter engages, immediately step on the brake pedal to shut down the system, recheck your "Violet" wire
(White 6-Pin, Starter Output) connection. The heavy gauge "Violet" wire must be connected to the ignition
switch side of the Neutral Start Switch. If the vehicle you are working on does not have an Electrical Neutral
Safety Switch, it will be necessary to reconfigure the Remote Starts Wiring to accommodate this vehicle. The
information concerning the Mechanical Neutral Safety Switch provided below will help you to determine if the
vehicle you are working on has this type of safety switch and will provide alternate wiring methods to
accommodate this situation.
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