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without the key sense wire shutting down the unit prematurely.
You must also connect the H2/4 BROWN (+) shut-down input to the yellow
wire on the relay satellite ribbon cable. This prevents the remote engine start
system from activating if the key is left in the “run” position. You must use
diodes to isolate the ignition circuit from the brake switch circuit as shown in
the diagram below.
Important! Once the interface is complete, attempt to remote engine start the
vehicle with the door closed and the key in the ignition. The vehicle should not
start. If it does, re-check the connections.
As of the date of this guide’s publication, the following list describes the types
of vehicles that are known to have a mechanical neutral safety switch instead
of an electrical neutral safety circuit. The model years will vary from vehicle to
vehicle.
Pre-1996 Dodge Dakota pickups with 2.5 liter engines•
GM "B" Platform: Caprice, Impala SS and Roadmaster•
GM "D" Platform: Cadillac Fleetwood and Fleetwood Brougham•
GM "P" Series: Commercial Van•
GM "L/M" Series: Astro, Safari•
GM "C/K" Series: Full-size pickup, Sierra, Suburban, Tahoe, Yukon•
GM "S/T" Series: Blazer, Bravada, Jimmy, pickup, Sonoma•
GM "G" Series: Express, Savanah•
