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Figure A Figure B
IIMMPPOORRTTAANNTT!!
Always perform the Vehicle Safety Check section of this guide to verify that the vehicle cannot be
started in ANY drive gear and that the override switch is functioning properly.
neutral safety switch interface
Some vehicles combine the column shift mechanism and the mechanical neutral safety switch into
one mechanical part. In these vehicles, it is impossible to interface the remote start system before the
neutral safety switch. With this type of vehicle, if the vehicle is left in a drive gear and the remote
start system is activated, the vehicle will move and may cause damage to persons or property.
According to available information, vehicles known to be manufactured this way are most General
Motors trucks, sport utility vehicles and column shifting passenger vehicles. Available information also
indicates that pre-1996 Dodge Dakota pickups with 2.5 liter motors are also manufactured this way.
GM vehicles that have the neutral safety switch built into the column shifter can usually be identified by
a purple starter wire. Typically, vehicles that use an outboard mechanical switch use a yellow wire from
the ignition switch to the mechanical switch and a purple wire from the mechanical switch to the starter
itself. Remember, this is only a rule of thumb and is not intended as a substitute for proper testing.
We suggest the following procedure to test for vehicles manufactured in this way.
NNOOTTEE::
You must complete the remote start system installation before doing the following test. Ensure that the
remote start system is functioning normally. This includes connecting to the brake as a shut-down.
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