Gmc  Yukon 1992-1994
 PART   COLOR  LOCATION
 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
 POWER LOCK  LIGHT BLUE (TYPE C), See NOTE #1  IN EITHER DOOR HARNESS
 POWER UNLOCK  BLACK/RED (TYPE C), See NOTE #1  IN EITHER DOOR HARNESS
 DOOR TRIGGER  WHITE (-)  @ HEADLIGHT 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 (AC), See NOTE #3  @ ECM, See NOTE #2
 WAIT TO START LIGHT  DARK BLUE (+), See NOTE #4  @ INSTRUMENT CLUSTER
 BRAKE  WHITE (+)  @ SWITCH ABOVE BRAKE PEDAL
 FACTORY ALARM DISARM   N/A  
 ANTI-THEFT  N/A  
 EXTRA INFORMATION
 NOTE #1: If vehicle is a 2-Door it is a TYPE C Door Lock System, if the vehicle is a 4-Door, it is a TYPE A Door locking System. NOTE #2: The ECM (Engine Control Module) is located BEHIND and to the RIGHT of the GLOVEBOX NOTE #3: For a TACH wire on a DIESEL use the WHITE wire at the ALTERNATOR or INSTRUMENT CLUSTER. NOTE #4: 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.