Chevrolet  Avalanche 2003-2006
 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 (+)  @ 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 ( - )  GRAY/BLACK (-)  @ HEADLIGHT SWITCH
 PARKING LIGHTS ( + )  BROWN (L) and BROWN/WHITE (R) (+)  @ UNDERHOOD FUSE BOX, RED 32-PIN PLUG, PINS F6 AND C6
 POWER LOCK  SEE NOTE #1  
 POWER UNLOCK  SEE NOTE #1  
 DOOR TRIGGER  See NOTE #3  @ BMC, See NOTE #2
 DOMELIGHT SUPERVISION  See NOTE #3  @ BCM, See NOTE #2
 TRUNK RELEASE  N/A  
 SLIDING POWER DOOR  N/A  
 HORN  BLACK (-)  @ BCM, BROWN plug, Pin A9, See NOTE #2
 TACH  WHITE (AC)  @ ECM, See NOTE #4
 WAIT TO START LIGHT  N/A  
 BRAKE  WHITE (+)  @ SWITCH ABOVE BRAKE PEDAL
 FACTORY ALARM DISARM   LIGHT GREEN (-)  @ DRIVERS WINDOW SWITCH, BLACK 26-PIN PLUG, PIN 15
 ANTI-THEFT  YELLOW and ORANGE/BLACK  PASSLOCK 2 at STEERING COLUMN
 EXTRA INFORMATION
 NOTE #1; this Vehicle is equipped with GM'S PASSLOCK 2 ANTI-THEFT SYSTEM that will Require the 791 Bypass Module for REMOTE STARTING, if you are INSTALLING a REMOTE START/KEYLESS ENTRY the Part # DB-ALL or XK09 INTERFACE BYPASS MODULE is required, either unit will work for this application. to order go to the INTERFACE BYPASS MODULE Page on this website. NOTE #2: The BCM (Body Control Module) is located BEHIND the DRIVERS SIDE of DASH, with the PLUGS facing the REAR of the vehicle. NOTE #3: This vehicle has (2) door trigger wires, a TAN (-) for the DRIVERS door in the PURPLE plug, Pin B4 and for the PASSENGERS doors a BLUE/WHITE (-) in the LIGHT BLUE plug, Pin B11. When installing and ALARM SYSTEM use both wires and DIODE ISOLATE. For DOMELIGHT SUPERVISION use only the TAN (-) PURPLE plug, Pin B4. NOTE #4 The ECM (Electronic Control Module) is located near the BATTERY down low, between the fender and the fan under a BLACK cover. TACH wire: On the 4.3L the TACH wire is in a 20 Pin connector labled "RED". On the 4.8L, 5.3L, and 6.0L the TACH wire is at Pin 10 in the RED connector.