Gmc  Denali 2001-
 PART   COLOR  LOCATION
 12 VOLT CONSTANT   RED (+)   @ IGNITION SWITCH HARNESS
 STARTER  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 ( - )  WHITE (-)  @ BCM, LIGHT BLUE plug, Pin A5, See NOTE #4
 PARKING LIGHTS ( + )  BROWN (+)  @ BCM, LIGHT BLUE plug, Pin B6, See NOTE #4
 POWER LOCK  LIGHT BLUE (TYPE A)  @ BCM, BROWN plug, Pin A4, See NOTE #4
 POWER UNLOCK  WHITE (TYPE A)  @ BCM, BROWN Plug, Pin A3, See NOTE #4
 DOOR TRIGGER  See NOTE #2  @ BCM, See NOTE #4
 DOMELIGHT SUPERVISION  TAN (-)  @ BCM, See NOTE #4
 TRUNK RELEASE  N/A  
 SLIDING POWER DOOR  N/A  
 HORN  BLACK (-)  @ BCM, BROWN plug, Pin A9, See NOTE #4
 TACH  WHITE (AC)  @ ECM, See NOTE #3
 WAIT TO START LIGHT  N/A  
 BRAKE  WHITE (+)  @ SWITCH ABOVE BRAKE PEDAL
 FACTORY ALARM DISARM   LIGHT GREEN (-)  @ BCM, PURPLE plug, Pin B3, See NOTE #4
 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 PURPLE plug Pin B4, the PASSENGER DOORS are a BLUE/WHITE (-) in LIGHT BLUE Plug, Pin B11. When connecting to an ALARM SYSTEM use BOTH wires and DIODE ISOLATE. See DIAGRAM NOTE #3: The ECM (Engine Control Module) is located NEAR the BATTERY, down low between the fender and the fan shroud, under a BLACK plastic cover. On the 4.3L engine the TACH wire is in a 20-Pin plug labled "RED". On the 4.8L, 5.3L and 6.0L engines, the TACH wire is at Pin 10 in the RED plug. NOTE #4: The BCM (Body Control Module) is located BEHIND the DRIVERS SIDE of the DASH, with the PLUGS FACING the REAR of the VEHICLE. NOTE #5: IMPORTANT !!!!! this wire MUST BE CONNECTED as IGNITION #2 for REMOTE STARTING!!!!!!