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GMC FULL SIZE JIMMY
MODEL YEAR(S
FULL SIZE JIMMY 1987-1991
KEY T-HARNESS IMMOBILIZER
N/A GM-3 N/A
PART COLOR LOCATION DIAGRAM
12 VOLT CONSTANT RED (+) @ IGNITION SWITCH HARNESS
STARTER PURPLE (+) or YELLOW (+) @ IGNITION SWITCH HARNESS
STARTER 2 N/A
IGNITION 1 PINK (+) @ IGNITION SWITCH HARNESS
IGNITION 2 N/A
IGNITION 3 N/A
ACCESSORY/HEATER BLOWER 1 ORANGE (+) @ IGNITION SWITCH HARNESS
ACCESSORY/HEATER BLOWER 2 N/A
KEYSENSE N/A
PARKING LIGHTS ( - ) N/A
PARKING LIGHTS ( + ) BROWN (+) @ HEADLIGHT SWITCH or FUSEBOX
POWER LOCK LIGHT BLUE (TYPE A) IN EITHER DOOR HARNESS
POWER UNLOCK BLACK/WHITE (TYPE A) IN EITHER DOOR HARNESS
LOCK MOTOR WIRE GRAY (5-WIRE TYPE) IN DRIVERS DOOR HARNESS
DOOR TRIGGER WHITE (-) @ UNDERDASH LIGHT
DOMELIGHT SUPERVISION USE DOOR TRIGGER, (Requires Part #775 Relay)
TRUNK RELEASE N/A
SLIDING POWER DOOR N/A
HORN BLACK (-) @ STEERING COLUMN HARNESS
TACH PURPLE/WHITE, See NOTE #2 @ IGNITION COIL or DISTRIBUTOR
WAIT TO START LIGHT DARK BLUE (-), See NOTE #1 @ INSTRUMENT CLUSTER
BRAKE WHITE (+) @ SWITCH ABOVE BRAKE PEDAL
FACTORY ALARM DISARM N/A
ANTI-THEFT N/A
NOTES
NOTE #1: when hooking up a remote starter, if you cannot get the (+) or (-) Wait to Start wire

on the Remote Starter to work properly, you will then need to disconnect this wire and

Program the Remote Starter for the 5, 10, 15 or 20 Second Wait to Start Timmer in

the Installation manual.





NOTE #2: the DIESEL TACH wire is a PURPLE/WHITE wire at the ECM, the ECM is located behind

the glove box in a Silver box with 2 plugs.
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