05 Trailblazer Ignition Switch Wire Diagram

Item	Wire Color	Polarity	Wire Location
12V	red (40A), red/white (40A)	Positive (+)	ignition harness
Starter	yellow	Positive (+)	ignition harness
Starter 2	N/A	Positive (+)	N/A
Ignition	pink	Positive (+)	ignition harness
2nd Ignition	white	Positive (+)	ignition harness
3rd Ignition	N/A	Positive (+)	N/A
Accessory	orange	Positive (+)	ignition harness
Accessory 2	brown	Positive (+)	ignition harness
Tachometer	white	Positive (+)	cluster or PCM/ECM, blue plug / See notes (1)
Power Door (Lock) Wiring Diagram for [Positive (+)] Door Lock	GMDL1 module required	Positive (+)	N/A
Power Door (Unlock) Wiring Diagram for [Positive (+)] Door Unlock	see power lock	Positive (+)	see power lock
Door Trigger	use dome supervision wire	Negative (-)	See notes (3)
Dome Supervision Wiring Diagram for [Positive (+)] Dome	gray/black	Positive (+)	fuse box under left rear seat
Headlights	N/A	Positive (+)	N/A
Parklight Positive	brown	Positive (+)	fuse box under left rear seat
Parklight Negative	gray/black	Negative (-)	switch or BCM, tan plug, pin E5 / See note (2)
Wipers	N/A	Positive (+)	N/A
Left Front Window (Up/Down)	N/A	Positive (+)	N/A
Right Front Window (Up/Down)	N/A	Positive (+)	N/A
Left Rear Window (Up/Down)	N/A	Positive (+)	N/A
Right Rear Window (Up/Down)	N/A	Positive (+)	N/A
Trunk/Hatch Pin	use dome supervision wire	Positive (+)	See note (4)
Hood Pin	pink/black (export only)	Negative (-)	switch or BCM, tan plug, pin E6 / See note (2)
Trunk/Hatch Release Wiring Diagram for [Positive (+)] Trunk/Hatch	N/A	Positive (+)	N/A
Factory Alarm (Arm)	arms with GMDL1	Positive (+)	arms with GMDL1
Factory Alarm (Disarm)	disarms with GMDL1	Positive (+)	disarms with GMDL1
Horn	black/yellow to black	Negative (-)	See note (2)
Brake	white	Positive (+)	brake pedal switch
Door Motor (Lock)	gray	5 Wire	driver door module in door
Door Motor (Unlock)	tan	5 Wire	driver door module in door
Disarm	N/A	Positive (+)	N/A
Disarm No Unlock	lt. green (if no GMDL1)	Negative (-)	driver door module in door
Additional Info:
(*) If using keyless entry, GMDL1 must be used, if using keyless entry AND remote start, GMDLBP is required. (1) 4.2L: The PCM is attached to the driver side of the engine. Tach is in pin 49; 5.3L: The ECM is near the lower front driver side of the engine. Tach is in pin 48. Can also go to any fuel injector and use the wire that is NOT pink. (2) The BCM is attached to the fuse box under the left rear seat. (3) To avoid dome light delay, use the separate door trigger wires. The LF door is gray/black (-) at the driver door module in the door. The RF door is black/white (-) at the passenger door module in the door. The LR door is lt. blue/black (-), and the RR door is lt. green/black (-). The rear door trigger wires are at the fuse box under the left rear seat. Use all four wires and diode isolate each. (4) To avoid dome light delay, use the separate trigger wires at the liftgate module in the liftgate. The liftgate is pink/black (-), and the glass hatch is purple (-). Use both wires and diode isolate each.

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.

Copyright © 2000-2006 GNU Industries, Inc. All Rights Reserved.

Source: http://www.commandocaralarms.com/wiring/2005/Chevrolet/Trailblazer/print_wiring_chart.asp

Posted by: dexheimermichikoayes.blogspot.com