Passlock System

[lboggie36]

i would like to know how to disable the passlock system in an 04 chevy venture and was wondering if the passkey 1 and 2 are simmilliar to the 3 or it is totally different?I've been using the hanes schematic but it's not giving me enough info can anyone help?

[lboggie36]

how do you bypass the pk3 system on 04 venture?

[slls]

Originally Posted by lboggie36

how do you bypass the pk3 system on 04 venture?

Is it PK 111+, is there a + on the metal part of the key near the plastic. If it is there is a transponder in the plastic part.

[ponchonutty]

yeah, the PK3 is totally different. I think usually though the dealer changes out the decoder that's attached to the ignition switch. If you take your shroud off around the column, you'll see it right next to the ignition switch. It even says pk3 right on it.

[lboggie36]

it only has pk3 on the key.

[lboggie36]

IS there a way to disable the passkey system?

[slls]

Originally Posted by lboggie36

IS there a way to disable the passkey system?

Try here, PK 111 also has a transponder, not easy to bypass.
http://www.designtech-intl.com/accessories.asp

[fisherdm]

I have a 1997 Chevy Malibu 3.1L. No black chip on the key, no alarm system, no auto start system. I have experienced the problem of my Malibu not starting in that it will start and then die immediately. It did this once in 2004, once in 2006 and twice over the past month which now has me concerned. The only time I noticed the theft light was today. Even when I took the key out the theft light stayed on. As I sat for a bit I tried to start it a few times w/o success. After sitting for a bit I noticed the theft light went off. The key was in the ignition but in the off position. Once I noted the theft light was off I turned the key and the car started and stayed started.

I have read through the entire thread and I am a bit confused. I have read about bypassing by cutting a yellow wire while the car is running and about magnets in the lock cylinder being worn out. I know it will cost more to buy the part than bypass but will just replacing the ignition lock cylinder fix the problem just the same? Chiltons manual makes the removal/installation appear straightforward and the part looks like it is about $125 which is a reasonable price if I can do it myself and save labor at the dealer.

Also, how does the the old key still work after the ignition lock cylinder is replaced?

[ponchonutty]

fisherdm, sorry but your BCM is bad. It's not the PK system although it could be on its way out too. I had a '01 S10 in the shop for the same thing. The security light would be lit even when the key was removed. If you unplugged the BCM it'd go out and you could get the car to start when you plugged it back in. Then, a few times later it'd lock up once again. After doing some scans it was found out the BCM was bad. After $423 in buying a new BCM, it was fine. That's been about 3 months ago.

[pairejohn]

Great thread great advice H ave 2002 malibu had problems with pass lock system had to have car towed to dealer in 2006 new ignition switch and some sort of control module don't remember excatly what the called it said they replaced. Last week car died again crank no start. had car towed to local service station. They claimed car started when it arrived. Station said battery was week and should be replaced had battery replaced and a relearn on security system. Next day car ran fine no problems. Second day ready to go to work car would not start same problem crank no start. Found this web site left battery disconnected over night next morning reconnected battery car started right up. Followed instructions and disabled passlock cut yellow wire. Did not bother with toggle switch I am not worried anyone will steal my car. No starting problems last 4 days Finnaly I think problem is fixed for good.

Thanks again raycorri

[slls]

Originally Posted by pairejohn

Great thread great advice H ave 2002 malibu had problems with pass lock system had to have car towed to dealer in 2006 new ignition switch and some sort of control module don't remember excatly what the called it said they replaced. Last week car died again crank no start. had car towed to local service station. They claimed car started when it arrived. Station said battery was week and should be replaced had battery replaced and a relearn on security system. Next day car ran fine no problems. Second day ready to go to work car would not start same problem crank no start. Found this web site left battery disconnected over night next morning reconnected battery car started right up. Followed instructions and disabled passlock cut yellow wire. Did not bother with toggle switch I am not worried anyone will steal my car. No starting problems last 4 days Finnaly I think problem is fixed for good.

Thanks again raycorri

The toggle is for easy rearm, if you disconnect the battery you will need to do the yellow wire cut again, with engine running.

[bringit1605]

well hello. i finally signed up because this site seems very thorough on what i am looking for.
I have a 2001 Malibu (4 door sedan 6 cyl 3.4 liter)with wouldn't you know it,the same problems. I have done this ACC thing too many times and now "when" the car starts i usually incure other lights being on, the radio/clock doesnt work, ac and heater and power windows and locks dont work and daytime running lamps. takes about 2 minutes and they kick on, but windows take up to 10 minutes.
i contacted the dealer i purchased and they said they have to hook up to diagnostic ($40) to make sure what it is but the service man said more likely it is the ignition switch passlock($300). what do you guys think?
i have a mechanic friend who is checking on it today and said he could do the fix if it was the above mentioned.
i sprayed my ignition with electrical cleaner about 5 hours ago when out and it started and everything worked but the check engine light and theft system lights are a steady on(not flashing). how do i reset this stuff? and should i even?
any help is appreciated.
also, what is this black chip on the keys people are talking about? if i have a passlock should i have a black chip? could that be the problem then?

[ponchonutty]

Originally Posted by slls

The toggle is for easy rearm, if you disconnect the battery you will need to do the yellow wire cut again, with engine running.

Yep, if you just simply cut the yellow wire and didn't use the resistor method, if the battery is replaced or dies, the car will never start until it "sees" the correct code again.

This is true for the toggle switch too. The only way the toggle will work is if the rest of the system still works. The problem is that normally the decoder in the ignition switch fails so all you are doing is putting the car in "fail, bypass mode". So, if the decoder competely fails, you have to jump or change the battery and you try your toggle switch, the car still won't start because it'll never get the correct code. This is why using the resistor method is 99% failsafe.

[ponchonutty]

Originally Posted by bringit1605

well hello. i finally signed up because this site seems very thorough on what i am looking for.
I have a 2001 Malibu (4 door sedan 6 cyl 3.4 liter)with wouldn't you know it,the same problems. I have done this ACC thing too many times and now "when" the car starts i usually incure other lights being on, the radio/clock doesnt work, ac and heater and power windows and locks dont work and daytime running lamps. takes about 2 minutes and they kick on, but windows take up to 10 minutes.
i contacted the dealer i purchased and they said they have to hook up to diagnostic ($40) to make sure what it is but the service man said more likely it is the ignition switch passlock($300). what do you guys think?
i have a mechanic friend who is checking on it today and said he could do the fix if it was the above mentioned.
i sprayed my ignition with electrical cleaner about 5 hours ago when out and it started and everything worked but the check engine light and theft system lights are a steady on(not flashing). how do i reset this stuff? and should i even?
any help is appreciated.
also, what is this black chip on the keys people are talking about? if i have a passlock should i have a black chip? could that be the problem then?

You certainly need the whole switch replaced. There's no repairing it or bypassing anything. If the car isn't seeing all of the ignition or accessory wires being energized, it'll through the lights that you see on. Have your mechanic hook it up to his scanner and read the codes.

[bringit1605]

the electrical cleaner did a lot of good. well temporary. it has worked ever since, but i feel that i will have to have it replaced. but what is this black chip on the keys they are talking about, does that signify anything about the theft system not reading my key right?