PRINT
CHEVROLET SILVERADO
MODEL YEAR(S
SILVERADO 2003-2006
KEY T-HARNESS IMMOBILIZER
N/A GM-12 GM'S PASSLOCK 2 ANTI-THEFT SYSTEM, SEE NOTE #1
PART COLOR LOCATION DIAGRAM
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 #2 @ IGNITION SWITCH HARNESS
IGNITION 3 N/A
ACCESSORY/HEATER BLOWER 1 ORANGE (+) @ IGNITION SWITCH HARNESS
ACCESSORY/HEATER BLOWER 2 BROWN (+) @ IGNITION SWITCH HARNESS
KEYSENSE N/A
PARKING LIGHTS ( - ) GRAY/BLACK (-) @ BCM, BROWN PLUG, PIN B2, SEE NOTE #3
PARKING LIGHTS ( + ) BROWN (+) (Left) BROWN/WHITE (+) (Right) ENGINE BAY FUSE BOX IN RED 32 PIN PLUG, PINS F6 & C6 1_0_D_3179a1ca-7.bmp
POWER LOCK SEE NOTE #1, (for BASE MODEL TRUCKS, SEE NOTE #4)
POWER UNLOCK SEE NOTE #1, (for BASE MODEL TRUCKS SEE NOTE #4)
LOCK MOTOR WIRE GRAY (5-WIRE TYPE) @ DRIVERS DOOR MODULE IN DOOR
DOOR TRIGGER GRAY/BLACK(-)(DRIVERS) and BLACK/WHITE(-)(PASSENGER),SEE NOTE#5 @ EACH DOOR MODULE, IN EACH DOOR
DOMELIGHT SUPERVISION GRAY/BLACK (-) @ BCM, BLACK PLUG, PIN E, SEE NOTE #3
TRUNK RELEASE N/A
SLIDING POWER DOOR N/A
HORN BLACK/YELLOW to BLACK (-) @ STEERING COLUMN HARNESS
TACH Any wire NOT, PINK, BLACK or BROWN (AC) @ IGNITION COILS or FUEL-INJECTORS
WAIT TO START LIGHT DK. BLUE (-) @ INSTRUMENT CLUSTER, PIN A2
BRAKE WHITE (+) @ BRAKE PEDAL SWITCH
FACTORY ALARM DISARM LT. GREEN (-) @ DRIVERS DOOR MODULE, IN DOOR, BLACK 26-PIN PLUG PIN 15
ANTI-THEFT GM'S PASSLOCK 2 ANTI-THEFT SYSTEM, SEE NOTE #1 @ IGNITION SWITCH
NOTES
NOTE #1: This vehicle uses GM'S PASSLOCK 2 ANTI-THEFT SYSTEM that requires a 791 Bypass

Module to Remote Start, if you are using a REMOTE STARTER ONLY, use the 791, to

order go to the SECURITY BYPASS MODULES Page on this website. IF you are

installing a REMOTE STARTER with KEYLESS ENTRY you MUST USE the INTERFACE

BYPASS MODULE, Part # DB-ALL or XK09, EITHER Bypass will do the Anti-theft and

Keyless entry. If connecting a keyless entry only you can use the GMDL-BP



to order, CALL 800 561 1110 ex. 2146, 9AM to 5PM eastern time, M-F. NOTE #2: The IGNITION #2 wire WHITE must be connected to prevent a CHECK ENGINE LIGHT

from turning on and to prevent DAMAGE to the TRANSMISSION on this Vehicle.







NOTE #3; The BCM is located under the Drivers Side of the dash, the BCM has 6 plugs on it,

with the PURPLE plug on the back.





NOTE #4: On BASE model truck the DOOR LOCK INTERFACE MODULE is not necessary, the LOCK

wire is a LT BLUE (TYPE B) @ the BCM, LT BLUE PLUG, PIN B5, and the UNLOCK wire is

a WHITE (TYPE B) @ the BCM, LT BLUE PLUG, PIN B10.





NOTE #5: On BASE Model trucks, the Door Trigger wires are @ the BCM, LT BLUE PLUG, PINS B4

and A5. On 4-Door Trucks the LEFT REAR Door is a LT BLUE/BLACK (-) PIN A3 and the

RIGHT REAR Door is a LT GREEN/BLACK (-) PIN A2, located in a PURPLE PLUG at the

BCM, use all 4 wires and diode isolate when installing an alarm system.
LINK 1 LINK TEXT 1 LINK 2 LINK TEXT 2