Remote Start in 2002 Seville STS

mikekilpatrick · #1 (**permalink**) 11-28-07, 05:35 PM

This may have been covered somewhere, but I have been unable to locate the information I would like to see. I have a 2002 Seville STS and would like to install a remote starter kit in the car. I know I need a PK3 bypass kit and I would like to activate it from the stock remote (hate carrying around two remotes).

Has anyone done this on their Seville, if so, what products did you use, how hard was the install and how long did it take you to perform the install. I want to cut AS FEW AS POSSIBLE wires for the install and if there is a kit with factory harness connections, that would be a bonus!

Thanks in advance...

chubbyranger · #2 (**permalink**) 11-28-07, 09:33 PM

I have a remote start that was on my 99 when I bought it. Two remotes and occasionally the Passkey system gets pissed off by the remote start. I've never looked to see how clean the wiring is or even where the unit lives. Not sure that there is any system that would have factory connectors given the number of wires you need to tap into (ignition, starter, brakes, lights). I'll bet it will be $$$ if you can find one.

submariner409 · #3 (**permalink**) 11-29-07, 11:30 AM

There was/were threads about a year ago on remote start packages. If I remember correctly, the Passkey III and security systems were not happy living with remote start. Something to do with the start system bypassing the ignition switch and its key code reader.

Most Cadillac dealers have a pretty comprehensive aftermarket showroom nowadays.......run the idea past one in your area.

( for instance, Fitzgerald Cadillac in Annapolis does CORSA, BORLA, wheels, tires, grilles, wood dash overlay- all sorts of stuff in a dedicated aftermarket service area, but electronics are subbed out.)

iametarq · #4 (**permalink**) 11-29-07, 05:35 PM

I too am curious about any new results since the old posts. I have a local shop that installed a kit in my Chrysler that I bought off ebay (which I don't recommend, the remotes are now very randomly working on the starting portion in longer distances). They quoted me around $400-$500 to do my Seville with the bypass module but he admitted he does not like doing Caddies, they make him nervous with all the smart electronics.

eclipse5302 · #5 (**permalink**) 11-29-07, 09:23 PM

Now knowing about the PK3 issues that it has, I'm still going to give it a shot. I used to install them for a living (along with after market power locks, windows, standard alarms, car audio, etc) so I feel fairly confident that I can make it work. I too don't want two remotes, so my plan is to disconnect the gas door release and use that button to trigger the auto start.

mikekilpatrick · #6 (**permalink**) 12-04-07, 12:34 PM

It seems to me, when I did some research last year, that you have to patch together an auto start, a PK3 bypass kit and some tracing of where the gas cap release comes out of the brain. I was just hoping someone had some more information on the subject. The dealer advertises a remote start installed for 400-500 by me, but I just don't trust ANYONE to do as good of a wiring job as I would do! Been working on cars for about 25 years and have found VERY few installers that could do a better job than myself...

This is the information I received when I posted this question on Yahoo Cadillac forums last year...

Hello ! You can not use the OE Remote because they are difference ferquence.You need to buy a gm by pass kit .www.bypasskit.com. Check this web site for remote starter www.compustar.org. If you are in Canada I can help you because I do the wholesale for Alarm and Remote starter.Good luck!

dirtyguido · #7 (**permalink**) 02-13-08, 12:13 PM

I know this is an older thread, but I figure I'd ask if anyone actually got this settled.

My car came with a viper remote start alarm installed... Keyless entry works fine and has much greater range than I think any of the factory systems do. I have a little alarm antenna mounted at the top of my windsheild. The car remote starts fine, with no issues, but whenever I do remote start it I get the "Service Theft System" Message on the dash.

I put the key in it, and it runs fine, and there are no other adverse issues. I've discussed this with my friend who owns a viper alarm dealer and he said that they may have not used the proper bypass in the system. He said if they did not bypass pass key at all, the car would not start, but it may be a situation where the car starts, BUT the ignition cylinder is still complaining that there is no key.

He suggested burying a key head (cutting off the actual metal key) in the dash next to the ignition switch but I didn't that was the best idea, as it would permanently disable pass key.

Does yours give the "Service Theft System" message when it is remote started?

Take care,

George

CadillacSTS2003 · #8 (**permalink**) 02-13-08, 12:22 PM

all depends on what the installer does
i know we have a bypass module that we program with your keys reistance signal and mount it into the data class line and power it so that it only emits the signal when the remote start is pressed
therefore if someone breaks into your car not only would they not have a key hidden somewhere but even if they can brake the tumbler, they cannot use the module to act as the resistance unless they find where weve hid it and know which of the 20 or so wires comming from it need power from the various systems

chubbyranger · #9 (**permalink**) 02-14-08, 03:48 AM

Quote:

Originally Posted by dirtyguido

Does yours give the "Service Theft System" message when it is remote started?

My STS came with a DEI Valet remote start and it intermittently trips the Service Theft System warning and leaves the Security light on in the cluster. Sometimes one ignition cycle, sometimes 2-3. Pull codes and its whining about "Invalid Key at Startup" or something similar.

dirtyguido · #10 (**permalink**) 02-14-08, 01:01 PM

Mine does that every time it's remote started....

Seems to not have any negative effect beyond the whole "Service Theft System message" and the invalid key code. Everything works as advertised.

I really don't know if the passkey ISNT being bypassed properly - Would the car even start then?? Or if even though the passkey is being bypassed and allowing the car to start, the ignition cylinder still complains that the proper key isn't in the cylinder....

Take care,

George

Mark C · #11 (**permalink**) 02-14-08, 01:22 PM

There is a KEY in Ignition input to the BCM (I think) that is part of the security system in addition to the transponder (or VATS) input. Essentially when you put the key into the ignition switch, it completes a connection between the BCM and ground. If that signal is missing and the car gets started, thats probably what is causing the Service Theft system message.

dirtyguido · #12 (**permalink**) 02-14-08, 01:43 PM

Quote:

Originally Posted by Mark C

There is a KEY in Ignition input to the BCM (I think) that is part of the security system in addition to the transponder (or VATS) input. Essentially when you put the key into the ignition switch, it completes a connection between the BCM and ground. If that signal is missing and the car gets started, thats probably what is causing the Service Theft system message.

Ok that makes sense, the thing that irks me is that the message does not go away when you do put the key in. You have to scroll through the DIC to show something else to make it go away.

I guess once the fault is tripped it doesn't go away on the DIC until the next "clean" non-remote start.

Take care,

George

dkozloski · #13 (**permalink**) 02-14-08, 01:49 PM

Just about every Cadillac in Fairbanks has remote start with no problems. No triggered security systems or any other nonsense like that. The biggest local installer has done thousands of them and they are all foolproof. Go to www.astroflex.com and locate an installer in your area.

chubbyranger · #14 (**permalink**) 02-14-08, 07:17 PM

Here's one thing NOT to do. Was using the remote start to chase my lifter noise yesterday. Since I know it'll complain about a bad key occassionally and the other key is in the car, I stick it in the ignition, but do not turn it - ignition is 'off' but with the key in. Hit the remote start and it tries, but fails to start. After the 2nd attempt I figure out its the real key that's causing the problem and take it out and it starts right up off the remote. Somehow, it also managed to wipe out my fuel used and average MPG in the BCM (or wherever its stored in STS). Not sure what happened there but I won't try it again

dirtyguido · #15 (**permalink**) 02-15-08, 12:10 AM

You know I bet with that one, the bypass installed in the car was based on the key hanging on your keyring with the remote. Each key has it's own code in these cars, which is why you can program additional ones yourself, by sticking them in the ignition and turning them after using a valid key....

So the car went to start, and saw BOTH keys trying to start it at the same time.... probably declared a passkey fault of some sort and refused to start. Now as far as the BCM, these cars are VERY weird.

It would be interesting to see what would happen with the other key in the ignition and a remote start attempt.

Have you ever disconnected the battery?? I did it yesterday to install my subwoofer. When I reconnected it I got the scare of a lifetime. The car seemed to go through a reboot process. Everything came on, the dash, radio etc, and then turned on again, then off, then on, all by itself. It took about 3 minutes for the car to settle down, and everything to turn back off once an for all.. I was like this car is possessed!

Take care,

George