PRINT
BUICK LESABRE
MODEL YEAR(S
LESABRE 2004-2005
KEY T-HARNESS IMMOBILIZER
GMKEY-1 N/A GM's PK3 TRANSPONDER ANTI-THEFT System, See NOTE #6
PART COLOR LOCATION DIAGRAM
12 VOLT CONSTANT Connect to BATTERY ONLY
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 ( - ) BROWN/WHITE (-) @ DIM Module, BROWN Plug, Pin 3, See NOTE #1
PARKING LIGHTS ( + ) PURPLE (+) and BROWN/WHITE (+) Use both, See NOTE #1 @ REAR FUSE BLOCK, under drivers side rear seat. 5829_LESABRE_DUAL PARKING LIGHT DIAGRAM.pdf
POWER LOCK RED/BLACK (TYPE B) @ DRIVERS DOOR LOCK SWITCH in drivers door
POWER UNLOCK ORANGE/BLACK (TYPE B) @ DRIVERS DOOR LOCK SWITCH in drivers door
LOCK MOTOR WIRE GRAY (+) @ DRIVERS DOOR MODULE in DRIVERS DOOR
DOOR TRIGGER TAN (-) and DARK BLUE (-) Use both wires, See NOTE #3 IN EACH DOOR MODULE, See NOTE #2 13985_LESABRE_(-) NEGATIVE DOOR PIN ISOLATION CIRCUIT.pdf
DOMELIGHT SUPERVISION GRAY (-), (Requires #775 Relay) @ UNDER DASH LIGHT
TRUNK RELEASE LIGHT BLUE (-) @ RIM Module, BLUE Plug, Pin B4, See NOTE #3
SLIDING POWER DOOR N/A
HORN BLACK (-) @ DIM Module, GREY Plug, Pin A6, See NOTE #1
TACH WHITE (AC) @ PCM See NOTE *4
WAIT TO START LIGHT N/A
BRAKE WHITE (+) @ SWITCH ABOVE BRAKE PEDAL
FACTORY ALARM DISARM LIGHT GREEN (-) IN DRIVERS DOOR MODULE in DOOR
ANTI-THEFT GM's PK3 TRANSPONDER ANTI-THEFT System, See NOTE #6 @ IGNITION SWITCH TUMBLER
NOTES
NOTE #1: the PARKING LIGHTS on this vehicle are a 2-Wire System that will require 2 extra

Relays part #775 to connect, See DIAGRAM





NOTE #2: the DIM Module is located just in front of the blower motor near the passenger kick

panel. The DIM Module has (3) connectors that all exit out the bottom of the module.





NOTE #3: the TAN (-) is for the DRIVERS DOOR located in the DRIVERS DOOR HARNESS. The

DARK BLUE (-) is for all other doors and is located LOW in the DRIVERS KICK PANEL.





NOTE #4: the RIM Module is located behind the rear seat in the upper corner on the drivers

side.





NOTE #5: the PCM is located under the hood inside the AIR CLEANER BOX, the TACH wire is in

the CLEAR Plug Pin 8.







NOTE #6: Equipped with GM's PK3 TRANSPONDER ANTI-THEFT System Requires part # 791

BYPASS MODULE and an extra ignition key for Remote Starting operation



to order go to the SECURITY BYPASS MODULE Page on this website.

LINK 1 LINK TEXT 1 LINK 2 LINK TEXT 2