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wiring diagram for a 2003 Denali

Printed From: the12volt.com
Forum Name: Vehicle Wiring Information & File Requests
Forum Discription: Request Car Alarm, Car Stereo, Cruise Control, Remote Starter, Navigation, Mobile Video, and Other Vehicle Specific Wiring Info, Manuals, Tech Tips
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=8769
Printed Date: May 01, 2025 at 6:48 PM


Topic: wiring diagram for a 2003 Denali

Posted By: IT Lbs
Subject: wiring diagram for a 2003 Denali
Date Posted: January 29, 2003 at 12:39 PM

Does anyone have a wiring diagram for a 2003 4 wheel steering denali. It has factory keyless. Does this vechile use a 555L? Any help would be great.posted_image



Replies:

Posted By: 12voltking
Date Posted: February 20, 2003 at 8:22 AM
i would help, but this is a GM productposted_image

j/k - me



Posted By: jayts95
Date Posted: February 20, 2003 at 5:33 PM
       ITEM      |     WIRE COLOR     |POL|       WIRE LOCATION        |
|              12V|red & RED / white     |+ |ignition harness            |
|          STARTER|yellow              |+ |ignition harness            |
|        IGNITION|pink               |+ |ignition harness            |
| SECOND IGNITION|white               |+ |ignition harness            |
|        ACCESSORY|orange              |+ |ignition harness            |
| SECOND ACCESSORY|brown               |+ |ignition harness            |
|       POWER LOCK|use Directed module |   |                            |
|     POWER UNLOCK|part #456G *3       |   |                            |
|       LOCK MOTOR|gray               |   |driver door module in door |
|     UNLOCK MOTOR|tan                 |   |driver door module in door |
|    DISARM DEFEAT|tan                 |   |driver rear door harness    |
| PARKING LIGHTS +|brown               |   |driver kick panel           |
| PARKING LIGHTS -|gray/black          |   |headlight switch            |
|       HEADLIGHTS|pink or white       |- |headlight switch            |
|     DOOR TRIGGER|*1                  |- |*1                          |
| DOME SUPERVISION|comes on with disarm|   |                            |
| TRUNK/HATCH PIN|pink/black          |- |harness to BCM *2           |
|        HOOD PIN|                    |   |                            |
|TRNK/HTCH RELEASE|                    |   |                            |
| FCTRY ALARM ARM|                    |   |                            |
|FCTRY ALRM DISARM|lt. green           |- |driver door module in door |
|       TACHOMETER|NOT pink            |   |any fuel injector           |
|      SPEED SENSE|                    |   |                            |
|       BRAKE WIRE|white               |+ |brake pedal switch          |
|     HORN TRIGGER|black or blk/yel    |- |column or gray plug @ BCM *2|
|           WIPERS|                    |   |                            |
| LF WINDOW UP/DN|blue - brown        |A |LF window switch in door    |
| RF WINDOW UP/DN|lt. blue - tan      |A |RF window switch in door    |
| LR WINDOW UP/DN|blue - brown        |A |LR window switch in door    |
| RR WINDOW UP/DN|blue - brown        |A |RR window switch in door    |
| SUN RF OPN/CLOSE|                    |   |                            |
|   SUN ROOF LIMIT|                    |   |                            |
|        RADIO 12V|                    |   |                            |
|     RADIO GROUND|                    |   |                            |
|     RADIO SWITCH|                    |   |                            |
| RADIO ILLUMINATE|                    |   |                            |
|    POWER ANTENNA|                    |   |                            |
|       LF SPEAKER|                    |   |                            |
|       RF SPEAKER|                    |   |                            |
|       LR SPEAKER|                    |   |                            |
|       RR SPEAKER|                    |   |                            |


Notes:
NOTE: This vehicle has the passlock II immobilizer system that, when adding a remote start, must be interfaced with. Use DEI part 555t or 555L. *1 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 and the RR is lt. GREEN/ black, they are in a harness in front of the fusebox leading to the BCM rear plug. Use all four wires and diode isolate each. *2 The BCM (Body Control Module) is located behind the headlight switch. *3 If Directed module part #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.


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