03 silverado avital 5103

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=135957
Printed Date: July 09, 2025 at 7:15 PM

Topic: 03 silverado avital 5103

Posted By: clc5145
Subject: 03 silverado avital 5103
Date Posted: January 30, 2014 at 1:53 PM

The vehicle is a 2003 Chevrolet Silverado extended cab. Ok, I'm trying to stall my Avital 5103 Alarm/Remote start using Xpresskit DBALL. I've downloaded the current firmware to the DBALL. I've got the Doorlocks working, but no instant trigger when the doors are opened. The alarm will only trigger with shock sensor. Also the remote start will not activate at all. I'm looking for help on what wires I actually need and don't need using the DBALL with D2D. I've included the spreadsheet any information would be helpful. I already printed the wiring information and locations for my specific vehicle.

Vehicle Information: 2003 Chevrolet Silverado LS
Alarm / Remote Start Unit: Avital Model 5103
Bypass Module: Xpresskit DBALL

Alarm / Remote Start / Bypass Unit   Vehicle
Connection     Color     Description     Color     Polarity     Location:

PRIMARY HARNESS (H1), 12-pin Connector
H1/1     RED / White     (-) 200mA AUX Trunk Release Output
H1/2     Red     (+) Constant Power Input
H1/3     Brown     (+) Siren
H1/4     Empty     Not Used
H1/5     Black     (-) Chassis Ground Input
H1/6     Violet     (+) Door Trigger Input, Zone 3
H1/7     Blue     (-) Instant Trigger Input, Zone 3
H1/8     Green     (-) Door Trigger Input, Zone 3
H1/9     BLACK/ White     (-) 200mA Domelight Supervision Output
H1/10     WHITE/ Blue     (-) Remote Start Activation Input
H1/11     White     (+)/(-) Selectable Light Flash Output
H1/12     Orange     (-) 500mA Ground When Armed Output

AUXILIARY HARNESS (H2), 6-pin Connector
H2/1     Light Blue     (-) 200mA Second Unlock Output
H2/2     WHITE/ Black     (-) 200mA AUX 3 Output
H2/3     Violet/Black     (-) 200mA AUX 2 Output
H2/4     GREEN / WHITE     (-) 200mA Factory Alarm Rearm Output
H2/5     Gray/Black     (-) Wait-To-Start Input
H2/6      Light GREEN/ Black     (-) 200mA Factory Alarm Disarm Output

DOOR LOCK HARNESS, 3-pin Connector

1     Light Blue     (-) Unlock (+) Lock Output
2     Empty     Not Used
3     Green     (-) Lock (+) Unlock Output

REMOTE START HARNESS (H3), 5-pin Connector

H3/1     BLACK/ White     (-) Neutral Safety Switch Input
H3/2     Violet/White     Tachometer Input Wire
H3/3     Brown     (+) Brake Shutdown Input Wire
H3/4     Gray     (-) Hood Pin Switch Input, Zone 6
H3/5     Blue/White     (-) 200mA 2nd Status/Rear Defogger - Latched Pulsed

AUX 4, Horn, (H4), 2-pin Connector

H4/1     ORANGE / Black     (-) 200mA AUX 4 Output
H4/2     Brown     (-) 200mA Horn Output

HEAVY GAUGE RELAY SATELLITE WIRING HARNESS
H/1     Purple     Starter Output to Starter (Starter Side)
H/2     Green     Starter Input from Ignition (Key Side)
H/3     Red     (+) (30A) High Current 12V Input
H/4     Orange     Output to Accessory Circuit
H/5     Pink     Output to Primary Ignition Circuit
H/6     Red      (+) (30A) High Current 12V Input
H/7     Pink/White     Output to Second Ignition Circuit
H/8     RED / White     (+) (30A) High Current 12V Input

RELAY SATELLITE, 4-pin Connector
1     Blue     (-) 200mA Status Output
2     Orange     (-) 200mA Status Relay Turn On
3     Purple     (-) 200mA Starter Relay Turn On
4     Pink     (-) 200mA Ingition Relay Turn On

DBALL BYPASS UNIT

14 PIN CONNECTOR
2     Violet / YELLOW     J1850
13     Red     (+) 12v
14     Black     (-) Ground

12 PIN CONNECTOR
3     GREEN / WHITE     (-) Front Door Status Output
4     RED / Black     (-) Trunk Status Output
5     Violet/White     (AC) Tach Output

10 PIN CONNECTOR
1     Green     (-) Lock Input
2     Blue     (-) Unlock Input
3     RED / White     (-) Rear Hatch Release Input
6     WHITE/ Black     (-) AUX3 Heated Seats Input
10     Blue/White     (GWR) Input

Replies:

Posted By: kreg357
Date Posted: January 30, 2014 at 3:43 PM

If you are going D2D between the Avital and the DB-ALL, all the dashed Blue wire connections are handled by the D2D harness.

Not sure if this pertains to your Avital unit but... https://www.12voltdata.com/forum/viewtopic.php?f=131&t=8315

The DB-ALL install guide lists most of the necessary connections from the generic remote starter shown to the truck.

PRIMARY HARNESS (H1), 12-pin Connector
H1/1     RED / White     (-) 200mA AUX Trunk Release Output
H1/2     Red     (+) Constant Power Input      Red   +12V
H1/3     Brown     (+) Siren siren
H1/4     Empty     Not Used
H1/5     Black     (-) Chassis Ground Input                 chassis ground
H1/6     Violet     (+) Door Trigger Input, Zone 3
H1/7     Blue     (-) Instant Trigger Input, Zone 3
H1/8     Green     (-) Door Trigger Input, Zone 3
H1/9     BLACK/ White     (-) 200mA Domelight Supervision Output
H1/10     WHITE/ Blue     (-) Remote Start Activation Input
H1/11     White     (+)/(-) Selectable Light Flash Output        as shown in DB-ALL diagram    ***set to (-)
H1/12     Orange     (-) 500mA Ground When Armed Output

AUXILIARY HARNESS (H2), 6-pin Connector
H2/1     Light Blue     (-) 200mA Second Unlock Output
H2/2     WHITE/ Black     (-) 200mA AUX 3 Output
H2/3     Violet/Black     (-) 200mA AUX 2 Output
H2/4     GREEN / WHITE     (-) 200mA Factory Alarm Rearm Output
H2/5     Gray/Black     (-) Wait-To-Start Input
H2/6      Light GREEN/ Black     (-) 200mA Factory Alarm Disarm Output

DOOR LOCK HARNESS, 3-pin Connector

1     Light Blue     (-) Unlock (+) Lock Output
2     Empty     Not Used
3     Green     (-) Lock (+) Unlock Output

REMOTE START HARNESS (H3), 5-pin Connector

H3/1     BLACK/ White     (-) Neutral Safety Switch Input               chassis ground ( if auto trans )
H3/2     Violet/White     Tachometer Input Wire
H3/3     Brown     (+) Brake Shutdown Input Wire          as shown in DB-ALL diagram
H3/4     Gray     (-) Hood Pin Switch Input, Zone 6        install Avital hood pin
H3/5     Blue/White     (-) 200mA 2nd Status/Rear Defogger

AUX 4, Horn, (H4), 2-pin Connector

H4/1     ORANGE / Black     (-) 200mA AUX 4 Output
H4/2     Brown     (-) 200mA Horn Output           black (-) BCM, gray plug, pin B9

HEAVY GAUGE RELAY SATELLITE WIRING HARNESS
H/1     Purple     Starter Output to Starter (Starter Side)          Yellow
H/2     Green     Starter Input from Ignition (Key Side) Yellow
H/3     Red     (+) (30A) High Current 12V Input          Red
H/4     Orange     Output to Accessory Circuit Orange
H/5     Pink     Output to Primary Ignition Circuit          Pink
H/6     Red      (+) (30A) High Current 12V Input         RED / White
H/7     Pink/White     Output to Second Ignition Circuit             White
H/8     RED / White     (+) (30A) High Current 12V Input RED / White

RELAY SATELLITE, 4-pin Connector
1     Blue     (-) 200mA Status Output
2     Orange     (-) 200mA Status Relay Turn On          for external relay & Brown ACC2 wire
3     Purple     (-) 200mA Starter Relay Turn On
4     Pink     (-) 200mA Ingition Relay Turn On

A few notes.
1. The DB-ALL does not supply the rear door status signal, only the front doors.
2. The Avital might not be able to handle the Tach thru the D2D data connection. You might have to hardwire this signal.
3. The Brown ACC2 ignition wire might not be necessary.

The 2003 Yukon Pictorial should be very similar to your 2003 Silverado. Here is a link :
https://www.the12volt.com/installbay/forum_posts.asp~TID~133000~PN~1

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Soldering is fun!

Posted By: clc5145
Date Posted: January 30, 2014 at 5:29 PM

Thanks man. I appreciate your help. I didn't hook up the last RED / white (+) 12v from the remote start harness. I couldn't figure out where that was supposed to go since my wiring diagram didn't show another 12 volt input at the ignition harness.