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FACTORY ANTI-THEFT SYSTEMS
FOR GENERAL MOTORS CARS ONLY
System 1: PASSKEY I and II system (1985 and up). This system has a resistor pill in the key. Measure
resistance of the pill using a test meter. A bypass module is available, part #VATS-WR module.
System 2: PASSLOCK I and II system (1995 and up). Passlock does not have a pill in the key. It has a
light on the dash that states ANTITHEFT OR SECURITY system. A bypass module is available, part #GMBP-
721 module.
System 3: PASSKEY III system (GM 1998 and up). Passkey III is GMs version of a transponder system. This
key will have the letters PK3 on it. A bypass module is available. (Part #781)
FORD ANTI-THEFT SYSTEM: PATS
Ford uses a bypass part #FBP-718 module, 1995-1998. (1999 and up will use part #781.)
CHRYSLER AND MOST IMPORTS ANTI-THEFT SYSTEM: TRANSPONDER
1998 and up will use part #781.
To order these bypass modules call 1-800-878-8007.
MECHANICAL NEUTRAL SAFETY SWITCH (Rear Wheel Drive Only)
When installing a Bulldog remote starter on GM vehicles or Dodge Dakotas built prior to 1996, you
must:
Use the diagram below to create a circuit that will prevent the remote starter from starting the
vehicle unless the key is removed from the ignition switch.
PRE-1996 GM REAR WHEEL DRIVES WITH PURPLE CRANK WIRE
Optional part #775 required.
86
30
87a
87
85
5 Amp
fuse
Tie into
heavy white
wire on
3-relay
harness
(-) Negative
hood pin wire
Message
center or
key buzzer
Driver’s Door Switch
Key
Cylinder
TAN
GREEN
BLACK
YELLOW
BLUE
WHITE
NOT USED,
TAPE OFF
RED
Ground
Ground
86
30
87a
87
85
5 Amp
fuse
Tie into
heavy white
wire on
3-relay
harness
(-) Negative
hood pin wire
Message
center or
key buzzer
Driver’s Door Switch
Key
Cylinder
BLACK/LT.BLUE
LT.BLUE/GREEN
BLACK
YELLOW
BLUE
WHITE
RED
PRE-1996 DODGE DAKOTAS
Optional part #775 required.
NOT USED,
TAPE OFF
Ground
Ground
NEUTRAL SAFETY SWITCH
CAUTION: Before connecting the 12-pin
harness to the module, double check all
connections to be sure they are secure
and properly wrapped with electrical tape.
Mount the unit under the driver’s side
dash. Plug the 12-pin harness into the
main control module.
CONNECTING THE 12-PIN HARNESS & 3-relay HARNESS
+12V constant,
fused at 30 amps.
Ignition 1.
To Starter/Crank
Wire
To Accessory
Wire(s) that run
the Heater/Blower
Motor. Attach at
the ignition
switch wire
harness only.
WHITE/BLACK
WHITE
YELLOW/BLACK
BLUE/WHITE
WHITE/ORANGE
GREY
BLUE
YELLOW
ORANGE
BROWN
BLACK
RED
(-) Ignition 2
(-) Ignition 1
(-) Starter/Crank
(-) Factory alarm shutdown
(-) Tach input
Alarm Channel 2 / Keyless Entry
(+) Brake switch
Ignition input
Hood Pin
(+) Parking lights
Ground
To +12V constant
WHT/BLK 16 ga.
WHITE 16 ga.
YEL/BLK 16 ga.
WHITE
WHITE
YELLOW/BLACK
WHITE/BLACK
WHITE 16 ga
WHT/BLK 16 ga
YEL/BLK 16 ga
For 2nd Acc.
For 2nd Ign.
RED
RED