chevy silverado remote start

i have a 2004 chevy 2500hd automatic and i installed a avital 5303 and i have a omega immobilizer. when i first installed the remote start it would crank up and then die right as it tried to start. then i put the omega immobilizer on and now all it does is crank and crank and crank i have soldered all main connections and tec connections, check connections atleast 5 times a peace. i have went over and over and over this thing for the last 4 days and cannot fig out whats wrong. i have changed it from volatge sence to tak to just crank and no luck still does the same thing it just cranks. but when i unplug the immobilizer it tries to start and then dies right before it starts any ideas on whats wrong ?

and the tak is hooked in the white wire i believe pin A5

ok i all most have got this right i got to messing around to day and unpluged the passlock 2 from the key switch and IT WORKD!!!!!!! but then i plug it back up and the same thing happed that did before. sooo i fig my passlock is not bein disabled why would this happen?

the second accessory is not hooked up could this be causing this?

hillbillywv wrote:

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the second accessory is not hooked up could this be causing this?

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Dont remember which one...but either the 2nd ignition OR the 2nd accessory MUST be hooked up.  If not it will cause all kinds of problems.....

i have the second ignition hooked up hooking the second accessory up tn im about out of ideas.

Sounds like a bypass problem. 

Which Omega Passlock2 bypass did you use?

Did the bypass module program as per the istructions? 

Did you have to cut the Passlock2 Yellow wire as part of the install? 

Was the truck having starting problems before the install?

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Soldering is fun!

i used im01 omega bypass and yes programed per instructions door locks work. and no i hooked it up d2d and the vilot wire to pin a2 on the dignostics port. i also wired up the second accessory this morning.still nothing. 

and the truck stats fine with the key just not with the remote start

Possibly a dumb question, but what firmare do you have flashed on the IM01?  It looks like AMDL v6.00 is the correct and latest version.

When programming the bypass, at Step 3 did you set the module to Type 4 ( 4 blinks ) and start the truck with the key?

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Soldering is fun!

yes i believe that is the firmware i have. and yep i made sure it was type 4 .

My next step would be to re-flash the IM01 and do the programming over again.  And, while it is a bunch of wires, I would switch over the W2W mode.

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Soldering is fun!

i did wire to wire allready and still did the same thing. i took the module bak yesterday and traded it out new one did the same. and i looked on my programer (hyper tech hyper pack) its showing a DTC code 1631

Well, we are on the right track.  It is a Passlock2 error. 

P1631 Theft Deterrent System Password Incorrect 

Does everything else work?  The doors, parking lights, etc.  I would go back to W2W mode and verify the GWR signal is there during a remote start.  ( Maybe even just connect the Brown wire to chassis ground at the same time as I hit the start button.)

Hard to believe you have 2 bad IM01 modules.  What happens when you try to re-program the module?  Does it flash 4 times at Step 2?

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Soldering is fun!

yeah i know i have spent a week trying to get this figured out its got me puzzled lol. but yeah every thing else works and i did exactly what u said went w2w and then hit the chassis ground (omega tech support told em to try that) and yeah the light flashes 4 times.

When you get to Step 4, did you try holding the key in the Start position for several seconds?  Guess thats why I prefer iDatalink modules. 

Here is another thought.  Have you tried the old "Relays and resistor" method of bypassing the Passlock2? 

Here is a link to the  AudioVox instructions :  https://documents.audiovox.com/700054.pdf   I am sure Omega has it also.  You have the DMM, all you need is a couple of relays and the resistor.  ( The 3rd Ignition is just (-) Status Output.  If you share GWR between the IM01 and the Relays, diode isloate.)

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Soldering is fun!

i might have to resort to that.

I changed the Bypass and that fixed it guess them omega 01 are just junk