© 2005 Directed Electronics—all rights reserved
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has one side effect: If the customer inserts the key in the ignition with the driver's door open, the remote start
system will shut down. If this interface is used, it is important to inform the customer that the driver’s door must
be closed before inserting the key into the ignition when the remote start is active. This will allow the customer
to turn the key on and shut the remote start down by pressing the brake, 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 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.
IIM
MP
PO
OR
RTTA
AN
NTT!! Once the interface is complete, attempt to remote 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. This list will be updated periodically as new information is available; installers are
encouraged to call DIRECTED Technical Support at 1-800-753-0800 with updated information.
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Pre-1996 Dodge Dakota pickups with 2.5 liter engines
■
GM "B" Platform: Caprice, Impala SS and Roadmaster
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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
YELLOW WIRE ON
RELAY SATELLITE
RIBBON CABLE
(+) BRAKE WIRE
IN VEHICLE
BROWN (+)
SHUTDOWN INPUT
1N4004 DIODE
1N4004 DIODE
DIA-154
