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 *4	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 *3
PARKING LIGHTS ( + )	BROWN (+)	@ BCM, LIGHT BLUE plug, Pin B6, See NOTE *3
POWER LOCK	LIGHT BLUE (Positive (+))	@ BCM, BROWN plug, Pin A4, See NOTE *3
POWER UNLOCK	WHITE (Positive (+))	@ BCM, BROWN Plug, Pin A3, See NOTE *3
DOOR TRIGGER	See NOTE *1	@ BCM, See NOTE *3
DOMELIGHT SUPERVISION	TAN (-)	@ BCM, See NOTE *3
TRUNK RELEASE	N/A
SLIDING POWER DOOR	N/A
HORN	BLACK (-)	@ BCM, BROWN plug, Pin A9, See NOTE *3
TACH	WHITE	@ ECM, See NOTE *2
WAIT TO START LIGHT	N/A
BRAKE	WHITE (+)	@ SWITCH ABOVE BRAKE PEDAL
FACTORY ALARM DISARM	LIGHT GREEN (-)	@ BCM, PURPLE plug, Pin B3, See NOTE *3
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 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 *2 The ECM (Engine Control Module) is located NEAR the BATTERY, down low betwnne 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 *3 The BCM (Body Control Module) is located BEHIND the DRIVERS SIDE of the DASH, with the PLUGS FACING the REAR of the VEHICLE. NOTE *4 IMPORTANT !!!!! this wire MUST BE CONNECTED as IGNITION #2 for REMOTE STARTING!!!!!!