Jul 24, 2015, 4:25 PM
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Finally a cheap passlock fix!
CF Beginner
Joined: Jan 2020
Posts: 2
Likes: 0
Security bypass on impala
UPDATE: Did the below fix almost a year. Started acting up again about a month ago. Security light always coming, have to wait 10 minutes for passlock reset (almost every day). Had the below fix done again about a thousand miles ago. Works absolutely perfect again. No securit light, starts every time. My mechanic showed me the contacts, and they were badly burned again. He took a dremel with a brush and cleaned them like brand new. I think the problem is GM using inferior metals. Also had to fix my service traction control by cleaning the contacts by the wheels, more than once. Hope this helps someone else, sure has helped me.
CF Beginner
Joined: Jan 2020
Posts: 2
Likes: 0
ok first off changing the ignition switch and tumblers will do absolutely nothing sorry if you have already done this. there are three main components to the passlock II system the passlock sensor, the BCM, and the Ecm and of course the wiring in between. Odds are if this keeps happening and there is no other problems such as door locks freaking out trunk release just goin off then it's not the bcm if you do the relearn feature and it works the it is also not the Ecm. so you are left with the 3 wires that run from the bcm to the passlock sensor.odds are the passlock sensor is bad. now there are two solutions either go to the dealer and have the sensor replaced or bypass the system for good. any respectable mobile electonics installer should be able to do this no problem it takes me about 20 mins and i personally charge 40 dollars to do so hope this helps also if you are mechanically inclined in electronics i can send a diagram on how to bypass it yourself hope this all helps
CF Beginner
Joined: Mar 2020
Posts: 1
Likes: 0
bypass theft system
Can you send me the diagram to bypass it myself
Thanks
Thanks
ok first off changing the ignition switch and tumblers will do absolutely nothing sorry if you have already done this. there are three main components to the passlock II system the passlock sensor, the BCM, and the Ecm and of course the wiring in between. Odds are if this keeps happening and there is no other problems such as door locks freaking out trunk release just goin off then it's not the bcm if you do the relearn feature and it works the it is also not the Ecm. so you are left with the 3 wires that run from the bcm to the passlock sensor.odds are the passlock sensor is bad. now there are two solutions either go to the dealer and have the sensor replaced or bypass the system for good. any respectable mobile electonics installer should be able to do this no problem it takes me about 20 mins and i personally charge 40 dollars to do so hope this helps also if you are mechanically inclined in electronics i can send a diagram on how to bypass it yourself hope this all helps
CF Beginner
Joined: Mar 2020
Posts: 1
Likes: 0
2001 impala
[QUOTE=shawnvw;91891]
I have a question sorry to bump the thread but I have a 2001 impala I just got running a week ago started and ran fine only has 182,xxx on it when back to go start it and the security light was blinking tried to relearn it several times finally got it relearned and now it won’t start I don’t know what is going on with it could someone please help me
I have a question sorry to bump the thread but I have a 2001 impala I just got running a week ago started and ran fine only has 182,xxx on it when back to go start it and the security light was blinking tried to relearn it several times finally got it relearned and now it won’t start I don’t know what is going on with it could someone please help me
CF Beginner
Joined: Sep 2020
Posts: 1
Likes: 0
CF Beginner
Joined: Sep 2020
Posts: 3
Likes: 0
Send bypass diagram to mcgruff753@***.net. Thank you.
CF Beginner
Joined: Oct 2020
Posts: 1
Likes: 0
So i have a 2004 chevy impala security light would come on once a month and we would do the 10min relearn and it would start. Fast forward to now it has done it like every other day and sometimes the 30 min relearn will not work and have to leave it for several hours before it will start again. Car runs perfect without this security issue. so we replaced the computer system in the car thinking that would do something three days later same issue.
Now we are thinking of replacing the passlock sensor?
any suggestions or any help is appreciated as this has become a major headache as i have a full time job to get to and from and three kids to get to and from school/daycare as well. My car is my life and unfortuantly i am running out of money and patience to fix it.
PLEASE HELP!
If you have directions for bypass or anything please send to sniderdanielle26@yahoo.com just not the relearn procedure as we have done this many times its not a permanent fix.
Now we are thinking of replacing the passlock sensor?
any suggestions or any help is appreciated as this has become a major headache as i have a full time job to get to and from and three kids to get to and from school/daycare as well. My car is my life and unfortuantly i am running out of money and patience to fix it.
PLEASE HELP!
If you have directions for bypass or anything please send to sniderdanielle26@yahoo.com just not the relearn procedure as we have done this many times its not a permanent fix.
Last edited by Danielle Nicole Shears; Oct 28, 2020 at 9:46 AM. Reason: needed something else added
CF Beginner
Joined: Dec 2020
Posts: 2
Likes: 0
I purchased a 2013 impala the previous owner had lost the key. I called a locksmith to have it re keyed, he told me the anti theft module is broke and needs replaced. If i have the key made is there any way the anti theft module be bypassed.
CF Beginner
Joined: Dec 2020
Posts: 2
Likes: 0
Anti theft module
I purchased a 2013 impala the previous owner had lost the key. I called a locksmith to have it re keyed, he told me the anti theft module is broke and needs replaced. If i have the key made is there any way the anti theft module be bypassed.