Chevrolet  Silverado 1998-
 PART   COLOR  LOCATION
 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  WHITE (+), SEE NOTE #2  @ IGNITION SWITCH HARNESS
 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 @ FUSE BOX
 POWER LOCK  LT BLUE, See NOTE #3  IN EITHER DOOR BOOT
 POWER UNLOCK  WHITE, See NOTE #3  IN EITHER DOOR BOOT
 DOOR TRIGGER  PURPLE (-)  @ LIGHT SWITCH
 DOMELIGHT SUPERVISION  USE DOOR TRIGGER, (Requires #775 Relay)  
 TRUNK RELEASE  N/A  
 SLIDING POWER DOOR  N/A  
 HORN  BLACK (-)  @ STEERING COLUMN HARNESS
 TACH  WHITE (AC), See NOTE #4  @ ECM, SEE NOTE #4
 WAIT TO START LIGHT  DK BLUE (-)  @ INSTRUMENT CLUSTER
 BRAKE  WHITE (+)  @ SWITCH ABOVE BRAKE PEDAL
 FACTORY ALARM DISARM   N/A  
 ANTI-THEFT  GM'S PASSLOCK 2 ANTI-THEFT SYSTEM, SEE NOTE #1  @ IGNITION SWITCH
 EXTRA INFORMATION
 NOTE #1: This vehicle uses GM'S PASSLOCK 2 ANTI-THEFT SYSTEM that requires a 791 Bypass Module to Remote Start, to order go to the SECURITY BYPASS MODULES Page on this website. NOTE #2: The IGNITION #2 wire WHITE must be connected to prevent a CHECK ENGINE LIGHT from turning on and to prevent DAMAGE to the TRANSMISSION on this Vehicle. NOTE #3; If the vehicle is a 2-Door the Door locks are a TYPE C, if the vehicle is a 4-Door it is a TYPE A Door locking system. NOTE #4: The ECM is located on the drivers side inner fender well, modulde has 2 plugs, WHITE wire in plug marked WHITE. On the 6.5 DIESEL, the WHITE wire is at the INSTRUMENT CLUSTER.