xk09 dlpkgm, avital 4003, 2005 sierra

I'm having major problems with a XK09 DLPKGM module and Avital 4003 on a 2005 GMC Sierra 1500.

I used a GM-12 T Harness as well so I didn't have to splice the ignition wires in the column.

I got everything wired up (Soldered all connections), programmed the XK09, and the truck would start with the remote start. About 3/4 of the time the truck will shut down about 2 seconds after starting. The XK09 is not reporting any errors and the Avital 4003 is reporting Shutdown Code 4 which is Transmitter Shutdown (or optional push button). The LED on the Avital 4003 is usually flashing the LED most of the time which I believe means it is stuck in Auto learn. I cannot get it to exit this mode unless I leave the truck sit for several minutes. When it is stuck in this mode, I also cannot get into the programming mode.

The truck is also randomly starting once every hour or two. I left my keys on a table and the truck would still start so I KNOW that I wasn't accidentally hitting the lock on the fob. I have the Avital set to 3 pulses as well to start.

And after I got it installed and doing over 65, the dash would randomly freak out and flash the SES and some other dash lights/indicators.


I have reset the Virtual Tach and all features on the Avital 4003 several times. I have also switched from Virtual Tach mode to Voltage mode for starting and having the same problem. I have reset the XK09 and relearned it several times as well.

I have quadrupled checked all my wiring, searched here as well as google and cannot find a solution to my problem. Any help would be greatly appreciated. I took pictures of most of my wiring as well if you need to see anything specific to help.

Here is how I have it wired:

XK09 DLPKGM using D2D
Module - Vehicle
Pin 18 Green - Pin 2 Purple on OBDII Diagnostic Port
BLACK/ White

Avital 4003 Remote Start
Module - Vehicle
Primary harness (H1) wiring diagram
H1/1 LIGHT GREEN/ BLACK(-) FACTORY ALARM DISARM - NA
H1/2 GREEN / WHITE (-) FACTORY ALARM REARM - NA
H1/3 YELLOW (+) IGNITION OUT (TO ALARM) - NA
H1/4 WHITE/ BLUE (+/-) ACTIVATION INPUT - BCM C2, Pin A6 Door Lock Control
H1/5 ORANGE (-) GROUND WHEN LOCKED* - NA
H1/6 BROWN (-) HORN OUTPUT* - NA
H1/7 RED / WHITE (-) TRUNK RELEASE OUTPUT* - NA
H1/8 BLACK GROUND - Chassis Ground
H1/9 WHITE (+/-) LIGHT FLASH - NA

Heavy gauge relay wiring diagram
Module - GM-12 T Harness for Ignition Wiring
1 PINK (+) OUTPUT TO IGNITION CIRCUIT - Pink
2 PURPLE (+) OUTPUT TO STARTER CIRCUIT - Yellow
3 ORANGE (+) OUTPUT TO ACCESSORY CIRCUIT - Orange
4 RED (+) (30A) HIGH CURRENT 12 INPUT - Red
5 PINK/WHITE (+) PROGRAMMABLE OUTPUT FOR ACCESSORY OR IGNITION - White
6 RED (+) (30A) HIGH CURRENT 12V INPUT - Red

Remote start harness (H2) wiring diagram
H2/1 BLACK/ WHITE (-) NEUTRAL SAFETY SWITCH INPUT - Ground, truck has neutral safety built in
H2/2 VIOLET/WHITE TACHOMETER INPUT WIRE - NA
H2/3 BROWN (+) BRAKE SWITCH SHUTDOWN WIRE - White wire at brake switch
H2/4 GRAY (-) HOOD PINSWITCH SHUTDOWN WIRE - Hood Safety switch
H2/5 BLUE/WHITE (-) 200mA 2ND STATUS/REAR DEFOGGER OUTPUT - NA

I would try hard wiring the XK09 to the 4003 and try that . I just did a 2005 Tahoe with this set up and went with wire to wire because of the data being unreliable sometimes...

I think I found a solution. I switched the Avital 4003 activation signal polarity from (+) to (-) and the truck is now starting everytime and not shutting off.

Seems odd to as I'm on the positive wire going to the lock actuator so I would think it would want to see a positive pulse, but if its working, then so be it.