01 2500 HD
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=41061
Printed Date: May 02, 2024 at 7:17 AM
Topic: 01 2500 HD
Posted By: jkyliej
Subject: 01 2500 HD
Date Posted: October 17, 2004 at 1:50 PM
Does anyone have a wiring diagram for a 2001 GMC 2500 HD? I have to do a remote start on it today and my resources seem to be conflicting. Thank you ------------- JKJ
Replies:
Posted By: Teken
Date Posted: October 17, 2004 at 2:03 PM
DIRECTWIRE™ WIRING INFORMATION - GMC / FULL SIZE PICKUP / 2001 / Remote Start
12volts red + ignition harness
Starter yellow + ignition harness
Second Starter
Ignition pink + ignition harness
Second Ignition white + ignition harness
Notes: To avoid the check engine light from coming on and possible damage to the automatic transmission, the second ignition in this vehicle MUST be powered when adding a remote start system.
Third Ignition
Accessory orange + ignition harness
Second Accessory
Keysense
Power Lock lt. blue + brown plug at BCM
Notes: 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.
Power Unlock white + brown plug at BCM
Notes: 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.
Lock Motor gray drivers kick panel
Unlock Motor tan drivers kick panel
Parking Lights+ brown lt. blue plug at BCM
Notes: 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.
Parking Lights- white lt. blue plug at BCM
Notes: 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.
Hazards
Turn Signal(L)
Turn Signal(R)
Reverse Light
Door Trigger - BCM
Notes: 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.
Use tan for the drivers door located in pin B4 of the purple plug, and for the passenger door it will be a orange in pin B2 in the purple plug or dk.blue/white in pin B11 of the lt.blue plug, must diode isolate these wires.
Dome Supervision
Trunk/Hatch Pin
Hood Pin
Trunk/Hatch Release
Power Sliding Door
Factory Alarm Arm
Factory Alarm Disarm lt.green - drivers kick
Notes: Also found in the purple plug of the BCM.
Disarm No Unlock
Tachometer white ECM
Notes: 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.
Diesel tach wire is white at the cluster. Diesel wait to start wire is dk. blue (-) located at the instrument cluster.
Wait to start
Brake Wire white + brake pedal switch
Parking Brake
Horn Trigger black - brown plug at BCM
Notes: 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.
Memory Seat 1
Memory Seat 2
Memory Seat 3
Immobilizer Bypass Module: Required: Yes Type: Passlock 2 Part #: 555L or 555T
Notes: N/A
This wiring information is being provided free of charge on an "as is" basis, without any representation or warranty. It is your responsibility to verify any circuit before interfacing with it using a digital multimeter.
Is this for a full size pick up??
Posted By: tbirdman74
Date Posted: October 17, 2004 at 2:04 PM
12volts red + ignition harness
Starter yellow + ignition harness
Ignition pink + ignition harness
Second Ignition white + ignition harness
Notes: To avoid the check engine light from coming on and possible damage to the automatic transmission, the second ignition in this vehicle MUST be powered when adding a remote start system.
Accessory orange + ignition harness
Power Lock lt. blue + brown plug at BCM
Notes: 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.
Power Unlock white + brown plug at BCM
Lock Motor gray drivers kick panel
Unlock Motor tan drivers kick panel
Parking Lights+ brown lt. blue plug at BCM
Parking Lights- white lt. blue plug at BCM
Door Trigger - BCM
Use tan for the drivers door located in pin B4 of the purple plug, and for the passenger door it will be a orange in pin B2 in the purple plug or dk.blue/white in pin B11 of the lt.blue plug, must diode isolate these wires.
Factory Alarm Disarm lt.green - drivers kick
Notes: Also found in the purple plug of the BCM.
Disarm No Unlock
Tachometer white ECM
Notes: 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. Diesel tach wire is white at the cluster. Diesel wait to start wire is dk. blue (-) located at the instrument cluster.
Wait to start
Brake Wire white + brake pedal switch
Parking Brake
Horn Trigger black - brown plug at BCM
Immobilizer Bypass Module: Required: Yes Type: Passlock 2 Part #: 555L or 555T Here ya go, hope it works for you. ------------- If it don't fit, Force it.
If it breaks, You needed a new one anyway!
Posted By: Teken
Date Posted: October 17, 2004 at 2:06 PM
Or is this for a 6.6L Diesel Pick Up?
Posted By: jkyliej
Date Posted: October 17, 2004 at 2:08 PM
6.0 You guys really helped me out here. I love this site. ------------- JKJ
Posted By: jkyliej
Date Posted: October 17, 2004 at 2:08 PM
6.0 gas I should clarify.
-------------
JKJ
Posted By: jkyliej
Date Posted: October 17, 2004 at 2:12 PM
Full size 4 door pick up
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JKJ
Posted By: Teken
Date Posted: October 17, 2004 at 2:17 PM
What color? 
Posted By: jkyliej
Date Posted: October 17, 2004 at 6:57 PM
Ha ha. I almost fell for it too! Thanks again. ------------- JKJ
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