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GMC SUBURBAN
MODEL YEAR(S
SUBURBAN 1992-1994
KEY T-HARNESS IMMOBILIZER
N/A GM-3 N/A
PART COLOR LOCATION DIAGRAM
12 VOLT CONSTANT RED (+) @ IGNITION SWITCH HARNESS
STARTER YELLOW (+) or PURPLE (+) @ 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
POWER LOCK LIGHT BLUE (TYPE A) IN EITHER DOOR BOOT
POWER UNLOCK BLACK/RED (TYPE A) IN EITHER DOOR BOOT
LOCK MOTOR WIRE N/A IN DRIVERS DOOR HARNESS
DOOR TRIGGER WHITE (-) @ HEAD LIGHT SWITCH
DOMELIGHT SUPERVISION USE DOOR TRIGGER, (Requires Part #775 Relay)
TRUNK RELEASE BLACK (+) @ HATCH RELEASE SWITCH
SLIDING POWER DOOR N/A
HORN BLACK (-) @ STEERING COLUMN HARNESS
TACH PURPLE/WHITE or WHITE,(AC) @ ECM, See NOTE #1
WAIT TO START LIGHT DARK BLUE (+), See NOTE #2 @ INSTRUMENT CLUSTER
BRAKE WHITE (+) @ SWITCH ABOVE BRAKE PEDAL
FACTORY ALARM DISARM N/A
ANTI-THEFT N/A
NOTES
NOTE #1: the ECM (Electronic Control Module) is located BEHIND the GLOVE BOX and to the

RIGHT, DIESEL TACH is a WHITE at the ALTERNATOR or INSTRUMENT CLUSTER.







NOTE #2: 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.
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