Avital 4300 in 2003 Silverado
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=39957
Printed Date: July 18, 2025 at 8:40 PM
Topic: Avital 4300 in 2003 Silverado
Posted By: delphidoc
Subject: Avital 4300 in 2003 Silverado
Date Posted: September 28, 2004 at 9:10 PM
We're about to install an Avital 4300 in my son's 2003 Silverado- Class 2 Data Bus, Passlock II. The Avital 4300 has starter relay kill, door lock/unlock, dome light supervision, remote start, shock sensor. Looking at all the cables that attach to the main unit and the instruction book I can tell it's going to take several days to install it completely if we hunt for every factory wire separately. I've seen posts here referring to PLDATA, GMDATA, 456G, GMDL4, 555L, and I'm sure there's more. I'm having trouble deciphering what each particular interface does. DEI's website shows no hits when I search for 456G- very unfriendly website layout. I'd prefer to buy one interface if possible, two if I must, that takes care of as much tedious wiring as possible. Is there one interface that does more than the others? Which are the interfaces that are easiest for a complete MORON (me) when it comes to security systems? And no, paying someone to do it is not an option here. We're going to do it ourselves, do it right, and enjoy it the entire time, even if it kills us. ;) Thanks for any input on this. -------------
Replies:
Posted By: swamprat323
Date Posted: September 28, 2004 at 9:29 PM
Not sure if you have this,but its a start
| 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 |
| LR WINDOW UP/DN| | | |
| RR WINDOW UP/DN| | | |
| 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. 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.
Posted By: delphidoc
Date Posted: September 29, 2004 at 11:42 AM
Thanks for the reply. I've got The Disk 3.0, so I've got the wire colors. If I get a 456G do I also need to get a 555L? -------------
Posted By: kgerry
Date Posted: September 29, 2004 at 12:29 PM
yes the 555L bypasses the Passlock system and the 456G bypasses the factory security (alarm) and allows for keyless integration..... both these modules are user friendly and easy to install....
-------------
Kevin Gerry
Certified Electronics Technician
MECP First Class Installer
Owner/Installer
Classic Car Audio
since 1979
Posted By: delphidoc
Date Posted: September 29, 2004 at 2:23 PM
Thanks. Is there one interface that takes care of both at the same time? And, am I missing anything by using just the 456G and 555L together (is a 3rd interface needed or desireable?)?
-------------
Posted By: kgerry
Date Posted: September 29, 2004 at 2:56 PM
not missing anything.... 555L takes care of passlock and the 456 takes care of the class II issues..... there are other modules available but i rely on the DEI modules to work the first time, grief free..... ------------- Kevin Gerry
Certified Electronics Technician
MECP First Class Installer
Owner/Installer
Classic Car Audio
since 1979
|