remote start bypass and transponder

Just thinking here, if you have a vehicle with a transponder in the key and you happen to have a remote start with a bypass installed, do you still need the special key to start the car (not starting by remote)? Or can you go to the local hardware shop and get a key made for a few bucks and have it work because there is an installed bypass?

still have to have the chip in the key. some vehicles if you remote start it and then put a regular key in it would work. but for the most part no you have to have the chip

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there's some hackjob shops out there that just take the chip from the keys and glue it to the cylinder and that's their bypass. that's how i imagine people even hear of stuff like this.

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A DMM is a beautiful thing.

MECP Advanced Installer Certified.

Thanks Monty. I was just wondering because I need another key for my truck and since I have the bypass installed figured a regular key would work...oh well.

zerepdivad....I haven't heard of glueing a chip but I've seen videos of the wrapping a wire around the key and leaving it there.

What kind of truck is it?

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A DMM is a beautiful thing.

MECP Advanced Installer Certified.

It's a 2004 Chevy silverado 1500

that's not chipped anyways. that has passlock 2.

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A DMM is a beautiful thing.

MECP Advanced Installer Certified.

I'm not really sure what a Passlock is. All I know is I spoke with a guy on ebay who sells Ultra Start telling him I wanted to install a RS in my new truck. He sold me the 1272 and the int-sl+ bypass he said because I had a chip in the key. Once the equipment came in, I went to install it and saw the truck already had an Audiovox RS installed with another little black box I figured was the bypass. The guy who sold me the truck didn't give me a key fob so I bought one on ebay and the remote start works great.

What's the difference between a Passlock and a bypass? Did this guy sell me a bypass when I really didn't need one?

passlock 2 is a resistance based immobilizer that gm uses. the bypass is what is used to temporally feed that Resistance code to the BCM to start the vehicle.






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So would a 2 dollar key copied from the local hardware store work in my truck?

yes.

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A DMM is a beautiful thing.

MECP Advanced Installer Certified.

No kidding, that's great. Thank you. I'll get some extras made then

What about another immos ?
Which bypass systems will disable immo as a security element (i.e. having a mechanical key only will allow to use car) which not?

Mentioned above 'glueing a chip' is disabling immo, I'm right ?

i had a customer that could remote start his 2002 lincoln towncar with the chiped key in the bypass.... then he could put a hardware store key in to do his take over. drive off.   (he couldnt however start the car by itself with the hardware store key). Guess it just has to see the start sequence, then after that its fine.

some cars no longer look for the transponder chip once car has started so after remote starting you could do key takeover with a plain hardware store key but it would never be able to physically start the car by turning in ignition, some ( like your truck) has a resistance based system which is tripped thru the tumblers in the key housing so you dont need a special key, but we are not technically BYPASSING the transponder we are temporarily bypassing it only during remote start sequence, therefore we are technically interfacing with it,but there are some hacks out there that will permanently bypass the system by gluing the transponder to the ign barrel or a few other ways, but a proper install only temporarily bypasses it to start

okay then 2 questions more:
1) if the car is started remotely and the thief breaks window to enter - will he simply take off or remote starter will shuf the car off?

2) if the thief knows the model and location of the bypass can he use it as in a permanent way by connecting 12 volts to ACTIVATION input?

if a car has an alarm. and the doors are opened (without disarming) them the alarm will shut down the remote starter.

if you step on the brake the engine will die.

and the only thief that will know what model and type of bypass you used is the one that installed it.

all good installers mask the installation to look factory to hide the remote starter and the bypass. they also try to use inaccessable areas that require you to tear the dash apart to get at it.

thief do not like to take a lot of time to steal you car. and looking under the dash for something hidden will take time tooo much time for a thief

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Most cars have several security items built in.  Assume the car is running under a properly installed remote start system.

1.  There is no key in the ignition cylinder.  The shifter is locked in the Park position and the steering wheel is locked in position.  The shifter won't move until the cylinder is turned to the ON position and the brake is depressed.  As soon as the brake is pressed the remote starter shuts the engine down.  In the mean time the steering wheel is still locked in position (as is the gear selector).

2.  Most thieves aren't that smart.  There are a multitude of bypass modules out there.  Most are not marked too well and possibly hidden.  Some can have several flavors and versions of firmware loaded on to them.  The wire colors vary from one brand of remote starter to another.  D2D installs have their own built in security. 

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Soldering is fun!

Sure! I forgot about the brake pedal! It is one of the best explanations. one brake press and CAN BUS will tell to RS by bypass and D2D to kill engine. Safe and secure. Factory security of the car is not broken or degraded.

I guess that on cars with push to start everything other (st.wheel lock, shifter lock) are unlocked at bypass time being remote started... Maybe not