Gmc  Denali 1999-2000
 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  WHITE (+), See NOTE #5  @ 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 in DRIVERS KICK PANEL
 POWER LOCK  LIGHT BLUE (TYPE A)  IN EITHER DOOR HARNESS
 POWER UNLOCK  WHITE (TYPE A)  IN EITHER DOOR HARNESS
 DOOR TRIGGER  See NOTE #1  IN DRIVERS KICK PANEL and DRIVERS DOOR HARNESS
 DOMELIGHT SUPERVISION  WHITE (-), NOTE #2: (Requires #775 Relay)  @ UNDER DASH LIGHT
 TRUNK RELEASE  BLACK or BLACK/WHITE, See NOTE #3, (Requires #775 Relay)  LOW in DRIVERS KICK PANEL
 SLIDING POWER DOOR  N/A  
 HORN  BLACK (-)  @ STEERING COLUMN HARNESS
 TACH  WHITE (AC)  @ ECM, See NOTE #4
 WAIT TO START LIGHT  N/A  
 BRAKE  WHITE (+)  @ SWITCH ABOVE BRAKE PEDAL
 FACTORY ALARM DISARM   N/A  
 ANTI-THEFT  YELLOW (+), ORANGE/BLACK (-) and RED/WHITE (Not used)  GM's PASSLOCK 2 System, these wires exit the Ignition Switch Tumbler together and are in the Main Ignition Switch Harness in the Column.
 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 DRIVERS DOOR is a TAN (-) in the DRIVERS DOOR HARNESS, and the PURPLE (-) wire in the DRIVERS KICK PANEL is for the PASSENGER DOOR. The ORANGE/BLACK (-) in the DRIVERS KICK PANEL is for the REAR DOORS or HATCH. When connecting to an ALARM SYSTEM use all (3) wires and DIODE ISOLATE. See DIAGRAM NOTE #3: If vehicle has a REAR LIFT WINDOW it is a (+) POSITIVE wire, if vehicle has REAR CARGO DOOR it is a 5-wire system See DAIGRAM for CARGO DOORS. NOTE #4: The ECM (Engine Control Module) is located on the DRIVERS SIDE INNER FENDER. The TACH wire is in a BLACK Plug marked "WHITE" NOTE #5: IMPORTANT !!!!! this wire MUST BE CONNECTED as IGNITION #2 for REMOTE STARTING!!!!!!