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2003 Chevrolet Silverado Alarm/Remote Start Wiring

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Member - Posts: 1
Member spacespace
Joined: March 26, 2003
Posted: March 26, 2003 at 7:28 PM / IP Logged  

If anyone has the wiring schematics for the 2003 Chevy Silverado, please forwar/post the them.   I am installing my Compustar system.

Thank you for your help.


Velocity Motors 
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Joined: March 08, 2002
Location: Manitoba, Canada
Posted: March 27, 2003 at 10:31 AM / IP Logged  

|       ITEM      |     WIRE COLOR     |POL|       WIRE LOCATION        |

|              12V|red (x2)            |+  |ignition harness            |
|          STARTER|yellow              |+  |ignition harness            |
|         IGNITION|pink (12 awg)       |+  |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 *2       |   |                            |
|       LOCK MOTOR|gray                |   |driver door module in door  |
|     UNLOCK MOTOR|tan                 |   |driver door module in door  |
|    DISARM DEFEAT|tan                 |   |pass. door module in door   |
| PARKING LIGHTS +|                    |   |                            |
| PARKING LIGHTS -|gray/black          |   |brown plug @ BCM *1         |
|       HEADLIGHTS|                    |   |                            |
|     DOOR TRIGGER|gry/blk(L),blk/wht(R|-  |each door module in door *3 |
| DOME SUPERVISION|use door trigger    |   |                            |
|  TRUNK/HATCH PIN|                    |   |                            |
|         HOOD PIN|                    |   |                            |
|TRNK/HTCH RELEASE|                    |   |                            |
|  FCTRY ALARM ARM|arms with lock      |   |                            |
|FCTRY ALRM DISARM|lt. green           |-  |driver door module in door  |
|       TACHOMETER|NOT pnk, blk, or brn|   |any ignition coil           |
|      SPEED SENSE|                    |   |                            |
|       BRAKE WIRE|white               |+  |brake pedal switch          |
|     HORN TRIGGER|black               |-  |steering column             |
|           WIPERS|pink                |-  |steering column             |
|  LF WINDOW UP/DN|blue - brown        |A  |driver window motor         |
|  RF WINDOW UP/DN|blue - brown        |A  |passenger window motor      |


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. The passlock II wire colors are yellow, black, and RED / white (not used).  *1 The BCM (Body Control Module) is under the driver side dash.  *2 If Directed module part #456G is not available, refer to directfax document #1601.  On base model trucks the lock wire is lt. blue (-) and unlock wire is white (-). They are in the lt. blue plug at the BCM.  *3 On base model trucks the door trigger wires are in the lt. blue plug at the BCM. On 4dr trucks the LR door trigger is lt. blue/black, and the RR is lt. GREEN/ black. They are in the purple plug at the BCM. Use all wires and diode isolate.

Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
Member - Posts: 10
Member spacespace
Joined: May 08, 2003
Location: United States
Posted: May 13, 2003 at 2:15 PM / IP Logged  


You wouldn't by chance have the stereo wiring diagram too? ...for the RDS, with a class II data bus???  Is it the same color scheme as the older silverados? Gotta tap into the rears for adding an amp and relays for remote-on/off that'll work with the behavior of the factory HU.



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Disclaimer: *All information on this site ( ) is provided "as is" without any warranty of any kind, either expressed or implied, including but not limited to fitness for a particular use. Any user assumes the entire risk as to the accuracy and use of this information. Please verify all wire colors and diagrams before applying any information.

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