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Directwire for 2003 YukonPrinted From: the12volt.comForum 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=41259 Printed Date: May 10, 2025 at 4:46 AM Topic: Directwire for 2003 Yukon Posted By: naamanf Subject: Directwire for 2003 Yukon Date Posted: October 19, 2004 at 8:58 PM Could I please get the Directwire for a 2003 Yukon. Thank you in advance. Replies: Posted By: Teken Date Posted: October 19, 2004 at 9:09 PM 12volts red & RED / white + ignition harness Starter yellow + ignition harness Second Starter N/A 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 N/A Accessory orange + ignition harness Second Accessory brown + ignition harness Keysense lt. green - ignition harness Power Lock use Directed module 456G Notes: If Directed module 456G is not available, refer to DirectFax document 1601. Upper trim level vehicles may have a door lock switch on the right rear panel. If present use white (-) for lock and lt. blue (-) for unlock. Power Unlock see power lock Lock Motor gray driver door module in door Unlock Motor tan driver door module in door Parking Lights+ brown + driver kick panel Parking Lights- gray/black - switch or BCM, brown plug, pin B2 Notes: The BCM (Body Control Module) is under the driver side dash. It has 6 plugs in it, the purple plug is on the back. Hazards white - steering column Turn Signal(L) green + steering column Turn Signal(R) lt. green + steering column Reverse Light lt. green + BCM, black plug, pin F Notes: The BCM (Body Control Module) is under the driver side dash. It has 6 plugs in it, the purple plug is on the back. Door Trigger see notes - see notes Notes: The driver door trigger is gray/black at the driver door module in the door. The RF door trigger is BLACK/ white at the passenger door module in the door. 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 four wires and diode isolate each. The BCM (Body Control Module) is under the driver side dash. It has 6 plugs in it, the purple plug is on the back. Dome Supervision gray/black + BCM, black plug, pin E Notes: The BCM (Body Control Module) is under the driver side dash. It has 6 plugs in it, the purple plug is on the back. Trunk/Hatch Pin pink/black - BCM, purple plug, pin A1 Notes: The BCM (Body Control Module) is under the driver side dash. It has 6 plugs in it, the purple plug is on the back. Hood Pin N/A Trunk/Hatch Release N/A Power Sliding Door N/A Factory Alarm Arm arms with lock Factory Alarm Disarm lt. green - driver door module in door Disarm No Unlock see factory alarm disarm Tachometer white ac instrument cluster, pin A5 or PCM Notes: The PCM (Powertrain Control Module) is in the left front of the engine compartment to the left of the fan shroud. The tach wire is in the green plug, pin 10. For tach can also go to any of the ignition coils or injectors and use the wire that is NOT pink, black, or brown. Wait to start N/A Brake Wire white + brake pedal switch Parking Brake lt. blue - switch or BCM, lt. blu plug, pin A7 Notes: The BCM (Body Control Module) is under the driver side dash. It has 6 plugs in it, the purple plug is on the back. Horn Trigger BLACK / YELLOW to black - column or BCM, gray plug, pin B9 Notes: The BCM (Body Control Module) is under the driver side dash. It has 6 plugs in it, the purple plug is on the back. Memory Seat 1 red + driver door module in door Memory Seat 2 pink + driver door module in door Memory Seat 3 N/A + Immobilizer Bypass Module: Required: Yes Type: Passlock 2 Part #: 555L or 555T Notes: The Passlock 2 wire colors are yellow, black (org/blk), and RED / white (not used). 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. Posted By: Teken Date Posted: October 19, 2004 at 9:12 PM GMC Yukon 2003-2004 Remote Starter Wiring Colors and Notes Function Vehicle Color Location Start: Yello Ignition Switch Harness* Ignition #1: Pink Ignition Switch Harness Ignition #2: White Ignition Switch Harness Ignition #3: N/A **** Accessory: Orange Ignition Switch Harness Brake Light: Blue or White At Brake Switch Tach Signal: White or PURPLE / White At PCM or Instrument Cluster***** Parking Lights: Brown In Kick Panel Headlights: Not Recommended OEM Alarm Disarm: Green Inside of Drivers Door OEM Alarm Arm: N/A Diesel Glow Plug: N/A Clutch Bypass Wire: N/A Notes: * This vehicle is equippes with PASSLOCK II. Use Universal Alarm Bypass Module, Vehicle Specifi Bypass, or See Note #113. ****All DesignTech remote starters except the 2xx22 have an ignition 3 output - it is the WHITE/ black in the 'control harness.' This wire will be used to control the bypass module, if needed. ***** The tach wire at the instrument cluster is labeled as databus in the vehicle schematics, but it will supply a valid tach signal. -------------------------------------------------------------------------------- GMC Yukon 2003-2004 Alarm and Keyless Entry Wiring Colors and Notes Function Vehicle Color Location Constant +12 Volts: Red and RED / White Ignition Switch Harness Starter Kill: Yello Ignition Switch Harness* Ignition +12 Volts: Pink Ignition Switch Harness Dome Lights/Superv: White At Light Under Dash OEM Horn: Black (-) At Steering Column Harness Power Lock: See Note Below ** Power Unlock: See Note Below ** Trunk Release: N/A Alarm Input Wire: White At Light Under Dash Notes: ** Base models may have negative triggered door locks at the BCM vehind the headlight switch. Posted By: Teken Date Posted: October 19, 2004 at 9:14 PM Make: GMC
Model: Yukon Year: 2004 Alarm Constant 12 volts RED (2) IGNITION SWITCH HARNESS Ignition 12 volts PINK IGNITION SWITCH HARNESS Starter YELLOW IGNITION SWITCH HARNESS Dome Light GRAY/BLACK (+) AT UNDERDASH LIGHT Trunk Pin Switch Parking Lamp BROWN (+) DRIVERS KICK PANEL ** Power Lock GRAY SEE TECH NOTES Power Unlock TAN FOR DOOR LOCK INFO ** Parking Light Wire Has Also Been Found As A BROWN / WHITE (+) High In Kick Or VIOLET (-) At Headlight Switch. Information Courtesy Of Installer!! Any Additional Information Appreciated!! View Diagrams Accessories Window Up D\ BLUE P\ LT BLUE D\ BLUE P\BLUE @ Each Switch Due Window Down F/ BROWN F/ TAN R/ BROWN R/BROWN To Data Link #211 Ign Key Warn LIGHT GREEN (-) IGNITION SWITCH HARNESS Trunk Release OEM Horn BLACK (-) STEERING COLUMN HARNESS Headlights WHITE (-) AT HEAD LIGHT SWITCH OEM Alarm Arm OEM Alarm Disarm LT GREEN (-) AT DOOR MODULE INSIDE DRIVERS DOOR #211 See Reversal Rest At Ground Type Window Circuit Wiring Diagram OEM Hood Pin Wire Is PINK/BLACK @ Switch On Top Of Radiator Support Information Courtesy Of Installer!! Any Additional Information Appreciated!! View Diagrams Remote Start Tach Signal WHITE AT PCM * #238 Ignition #2 WHITE IGNITION SWITCH HARNESS Ignition #3 ORANGE IGNITION SWITCH HARNESS Accessory BROWN IGNITION SWITCH HARNESS Neutral Safety WHITE (-) PCM CONN C3 PIN #13 * Brake Light WHITE (+) AT SWITCH ABOVE BRAKE PEDAL Reverse Light LIGHT GREEN (+) EITHER TAIL LT ASSY OR TRAILER CONN Rear Window Defrost *PCM Located On The Drivers Side Of The Motor. Tach Wire Is In The BLUE Conn (C1) Closest To The Firewall,Pin #49. Also Found Back Of Cluster in 24 pin GREY Conn Pin # A12 #238- See G.M. Passlock II Bypass Diagram Information Courtesy Of Installer!! Any Additional Information Appreciated!! Posted By: Teken Date Posted: October 19, 2004 at 9:16 PM WIRE COLORS LOCATION 12 VOLTS CONSTANT RED IGNITION SWITCH HARNESS IGNITION 1 PINK (+) IGNITION SWITCH HARNESS IGNITION 2 WHITE (+) IGNITION SWITCH HARNESS ACCESSORY /HEATER BLOWER ORANGE (+) IGNITION SWITCH HARNESS STARTER YELLOW (+) IGNITION SWITCH HARNESS PARKING LIGHTS (+) BROWN (+) LT. BLUE PLUG @ BCM *1 DOME LIGHT TAN (-) *SEE NOTES BELOW *2 POWER DOOR LOCK LT. BLUE BROWN PLUG @ BCM *1 (TYPE "A") POWER DOOR UNLOCK WHITE BROWN PLUG @ BCM *1 (TYPE "A") TACH SENSOR WHITE (-) @ ECM *SEE NOTES BELOW* 3 BRAKE WHITE (+) SWITCH AT BRAKE PEDAL HORN BLACK (-) BROWN PLUG @ BCM FACTORY DISARM LT. GREEN ( - ) DRIVERS KICK PANEL *4 FACTORY ANTI-THEFT PASSLOCK 2 Requires part # 791 bypass NOTES: This vehicle has the PASSLOCK II immobilizer system, when adding a remote starter, it must be installed with a Part 791 BYPASS. Call 1-800-659-0764 to order. *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 - Diesel wait to start wire is dk. blue (-) located at the instrument cluster. 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* *4 - Also found in the purple plug of the BCM. Posted By: naamanf Date Posted: October 19, 2004 at 9:22 PM Teken- Thank you for the quick reply. You rock. |
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