2004 gmc sierra wiring diagram

Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=47741
Printed Date: July 19, 2025 at 9:53 PM

Topic: 2004 gmc sierra wiring diagram

Posted By: m_berrow
Subject: 2004 gmc sierra wiring diagram
Date Posted: January 14, 2005 at 10:44 PM

can anyone help with the door trigger and the parking light wire for this vehicle. Everything is a piece of cake except these two wires.

Replies:

Posted By: KarTuneMan
Date Posted: January 15, 2005 at 2:01 AM

GMC, FULL SIZE PICKUP, 2004, Door Trigger
On base model trucks the door trigger wires are in the lt. blue plug at the BCM, pins B4 and A5. On 4dr trucks the LR door trigger is lt. blue/black, pin A3, and the RR is lt. GREEN/ black, pin A2. They are in the purple plug at the BCM. Use all wires and diode isolate.

The BCM (Body Control Module) is under the driver side dash. It has 6 plugs in it, the purple plug is on the back.

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Posted By: KarTuneMan
Date Posted: January 15, 2005 at 2:03 AM

Parking Lights+	brown	+	driver kick panel
Parking Lights-	gray/black	-	BCM, brown plug, pin B2

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