2000 GMC Yukon Vehicle Wiring Chart and Diagram

Vehicle Wiring Details for a
2000 GMC Yukon

Item	Wire Color	Polarity	Wire Location
12V	red	Positive (+)	ignition harness
Starter	yellow	Positive (+)	ignition harness
Starter 2	none
Ignition	pink	Positive (+)	ignition harness
2nd Ignition	white	Positive (+)	ignition harness
3rd Ignition	none
Accessory	orange	Positive (+)	ignition harness
Accessory 2	none
Tachometer	white		ECM [3]
Power Door (Lock) Wiring Diagram for [Positive (+)] Door Lock	lt. blue	Positive (+)	brown plug at BCM [1]
Power Door (Unlock) Wiring Diagram for [Positive (+)] Door Unlock	white	Positive (+)	brown plug at BCM [1]
Door Trigger	[2]	Negative (-)	BCM [1]
Dome Supervision Wiring Diagram for [] Dome	none
Headlights	white	Positive (+)	lt. blue plug at BCM [1]
Parklight Positive	brown	Positive (+)	lt. blue plug at BCM [1]
Parklight Negative	white	Negative (-)	lt. blue plug at BCM [1]
Wipers
Left Front Window (Up/Down)	blue - brown		drivers door switch
Right Front Window (Up/Down)	blue - brown		passenger door switch
Left Rear Window (Up/Down)	blue - brown	A	LR door switch
Right Rear Window (Up/Down)	blue - brown	A	RR door switch
Trunk/Hatch Pin	none
Hood Pin	none
Trunk/Hatch Release Wiring Diagram for [] Trunk/Hatch	none
Factory Alarm (Arm)	none
Factory Alarm (Disarm)	lt.green	Negative (-)	drivers kick [4]
Horn	black	Negative (-)	brown plug at BCM [1]
Brake	white	Positive (+)	brake pedal switch
Door Motor (Lock)	gray		drivers kick panel
Door Motor (Unlock)	tan		drivers kick panel
Disarm	tan		passengers kick panel
Disarm No Unlock	none

Additional Info:
This vehicle has the passlock II immobilizer system that, when adding a remote start, must be interfaced with Commando part PassMod. Diesel glow plug, dk. blue(-) located at the instrument cluster. [1] The BCM is located behind the drivers side of the dash. The plugs on the BCM face towards the rear of the vehicle. The parking lights are in pin A5 and the headlights are in pin A11. [2] Use tan for the drivers door located in pin B4 of the purple plug, the passenger doors are a blue/white in the lt. blue plug, and the rear hatch pin is a pink/black in the lt. blue plug. You must diode isolate these wires. [3] ECM is located near the battery, down low, between the fender and the fan under the black plastic cover. On the 4.3L, the tach wire is at pin 20 in the connector labeled "red", and VSS wire is at pin 3 in the connector labeled "black". On the 4.8L, 5.3L, and 6.0L, the tach wire is located at pin 10 in the "red" connector, and VSS wire is located in pin 50 of the "red" connector. [4] Also found in the purple plug of the BCM.

ATTENTION: This wiring information is being provided free of charge and on an "as is" basis, without any representation or warranty. It is your responsibility to verify any circuit before interfacing with it by using a digital multimeter. GNU Industries, Inc. assumes no responsibility with regards to the accuracy or currency of this information. Proper installation in every case is and remains the responsibility of the installer. GNU assumes no responsibility resulting from an improper installation, even in reliance upon this information.