Printer Friendly Forum Posts - 2005 sierra diesel

GMC

MODEL	YEAR(S)
FULL SIZE PICKUP	2003 -2005

KEY	T-HARNESS	IMMOBILIZER
N/A	GM-12	791 BYPASS MODULE

PART	COLOR	LOCATION	DIAGRAM
12 VOLT CONSTANT	RED (+) (X2)	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 ( - )	GREY/BLACK (-)	@ BCM, BROWN Plug, Pin B2 See NOTE *
PARKING LIGHTS ( + )	BROWN (+)	IN DRIVERS KICK PANEL
POWER LOCK	See NOTE ****	See DIAGRAM	14301_FULL-SIZE-PICKUP-_GM FULL SIZE TRUCK LOCKS.pdf
POWER UNLOCK	See NOTE ****	See DAIGRAM	14301_FULL-SIZE-PICKUP-_GM 5-WIRE TRUNK POP DIAGRAM.pdf
DOOR TRIGGER	GRAY/BLACK (-) DRIVERS and BLACK/ WHITE (-) PASSENGER See NOTE * 2	@ EACH DOOR MODULE in EACH DOOR
DOMELIGHT SUPERVISION	GREY/BLACK (-)	@ BCM, BLACK Plug PIN F
TRUNK RELEASE	N/A
SLIDING POWER DOOR	N/A
HORN	BLACK / YELLOW to BLACK (-)	@ STEERING COLUMN HARNESS
TACH	WHITE	@ PCM, GREEN PLUG PIN 36 See NOTE ***
WAIT TO START LIGHT	DARK BLUE (-)	@ PCM , See NOTE ***
BRAKE	WHITE (+)	@ SWITCH ABOVE BRAKE PEDAL
FACTORY ALARM DISARM	LIGHT GREEN (-)	IN DRIVERS DOOR MODULE in DRIVERS DOOR
ANTI-THEFT	YELLOW and BLACK	GM's PASSLOCK 2 in Steering column harness

EXTRA INFORMATION

NOTE * The BCM (Body Control Module) is located UNDER the drivers side of dash. The unit has (6) plugs on it with the PUPRLE Plug on the back of the unit. NOTE ** on the BASE model trucks the wires are in the LIGHT BLUE PLUG at the BCM, PINS B4 and B5. On the 4 door trucks the DRIVERS REAR door is a LIGHT BLUE/BLACK (-) PIN A3 and the PASSENGERS REAR DOOR is a LIGHT GREEN/ BLACK (-) PIN A2 these wires are in the the PURPLE PLUG at the BCM. NOTE *** The PCM (Powertrain Control Module) is located in the LEFT FRONT of the engine compartment to the left of the fan shroud. On DIESELS the tach wire is at the GRAY PLUG, PIN 37 and on the hybrid models the tach wire is in a GREEN PLUG PIN 35 NOTE **** This vehicle requires a Special Door Lock DIAGRAM and extra parts to add Keyless Entry to this vehicle. See DIAGRAM for DOOR LOCKS. There is now a Module, EZ-BUS that is available to work on this vehicle without getting into the doors and adding these extra relays. To order check with your locat dealer or contact 1-800-659-0764.

LINK 1	LINK TEXT 1	LINK 2	LINK TEXT 2

https://www.directechs.com/directwire/wire_body.asp?action=select&yr=5865&product=Remote%20Start

This truck is easy....if you have the module for the door locks, DEI 456G I think it is, and no aftermarket turbo crap to work around.

If you dont want to pull the inst. cluster for the tach and wait to start wire, you can get them under the hood, under the big fuse box. In a plug that looks like its connected to the fender. Its purple in color (the plug) pin 4 DK.Blue wait to startNEG(-) top row of pins.

The tach is pin 2 on the bottom row WHITE

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