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this is a question that probably rangersvo or a few others can answer as it has to do with remote start.....

the vehicle: 2002 chevrolet Z71 suburban

the system: clifford intelligard

the problem: when remote starting it will not start. it cranks and fires then dies...however if you send it a remote start signal then put the key in the run position it will start and you can take the key out and it will continue to run. after that you can start it all you want remotely UNTIL you start it with the key again at which point it wont remote start unless you do the whole key thing all over again....we have tried several different passlock bypass modules to no avail so now we just stand there scratching our heads, we have been over the wiring and tested everything thrice............any ideas?

Are you sure that something isn't staying powered or is being powered wrong. With most Passlock II bypass modules the data wire is hooked up LAST. Make all other connections first. Next, do you have a WHEN RUNNING NEG OUTPUT on the remote start module? In most cases if the bypass module stays on (trigger line stays low during cranking) Passlock II will freak out. Passlock II only looks for the right info AFTER the car starts.

With my modules I have to start the car after the install with the key for a couple of seconds so that it learns the car. Then I can remote start the car.

This is important, the only time I have had weird problems with GM cars is if I power ignition 2 and ignition 3 wrong. In most cases these wires Must Drop out during engine cranking. If they remain powered weird thing happen.

did all that but i will check to make sure ignition 2 is dropping out during cranking..........

Is this the POS with the "chip" in the key?

If so put a Multimeter across it and get the Ohms. Head to Rat Shack and get the needed resistors, series as needed.

Pull the keyed ignition out and slap that resitor assembly parralel with it.

Thats the advice I got some time ago for the BUick. Just never alarmed it...

Passlock II has no chip in the key. The resistor value is actually built into the lock cylinder. And it can be bypassed the old fashion way with a resistor. I have had better luck with the bypass modules.

I hate Omega alarms but their bypass modules seem to work well for Ford and GM but NOT Jeep

You know we really need a forum that deals with remote start. What works and what doesnt work. I don't have problems with Fords. GM's are OK most of the time but have presented me with a few headaches. And Chrysler and Jeeps are HELL!!.

yea chrysler and jeeps can suck.....mostly because of the number of resistors, for is ok as long as you dont use the dei 555f, that is a piece of shit.......havent had anyproblems with gm except for this one....fortunately its our show vehicle and there is a lot going on, its a suburban with 2 smart windows setups for front and rear, were working on a sunroof setup with timed outputs and relays, plus interirt and exterior proximity, shock sensor, glass breakage sensor, remote start, strobes, piezo warnaway sirens, hatch release, smart windows wired into full alarm trigger to roll them up and shut the sunroof if the alarm is triggere........yea there is a lot of wires in this alarm system.............

If you discover the problem let me know. I promise it will go into my notes. The more info I get the easier these remote starts get.

But I still feel that your problem has to do with the way its being powered. Passlock is controlled by ignition 3, which does drop out during cranking.
If this is not the problem please let me know.

according to directwire there is no third ignition on this vehicle......ive got a sneaking suspicion that data was not hooked up last.....i came in on this after the fact because i was working on customer cars and after your last post thats something i didnt even think about because the bypass we are using now was put in there to replace a dei unit that wasnt working......its just odd the way it works and then doesnt work.......

i agree with you about have a remote start forum.....there is a lot of info to share on these things and anything we can all do to help one another is a good thing....

Use the Electrical part under the Platinum forums.

We did have a forum for alarms but it just didnt get used much at all, so it got consolidated.