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Finally a cheap passlock fix!
#261
Need help
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
#262
04 impala passlock
Can you please send me a copy of your diagram to fix this passlock problem with my impala any help would be very appreciated my email is rominen79@gmail.com thank you
#263
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
#264
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Join Date: Jul 2015
Location: SE Michigan
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This one was listed on another forum I'm on. Or you could try doing a web search, putting in "remote start" might help as well since passlock wouldn't allow that to work.
Speaking of the other forum, there are also many members there that have a 'tune' (look up Overkill) installed which disables the passlock.
Speaking of the other forum, there are also many members there that have a 'tune' (look up Overkill) installed which disables the passlock.
#266
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In my post just above yours, "This one" is a link to the instructions for doing a bypass. That page doesn't have any pictures, but we are only talking about a sensor with 3 wires from it to the BCM.
#267
Please send diagram are some instructions to fix passlock, ignition, issues
Jondoe28
Can you send me instructions (with diagram preferrably) on how to fix the passlock problem? Thank you.
I have fought this problem for months my email is ( tipton247@gmail.com)
Can you send me instructions (with diagram preferrably) on how to fix the passlock problem? Thank you.
I have fought this problem for months my email is ( tipton247@gmail.com)
#269
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At this age (10-20 years) you can have all kinds of electronic failures, and electronics don't always fail hard they often go intermittent for a while first. The passlock issue is also often misdiagnosed because the car isn't running and the message center shows "security"...but that is normal with the key just sitting in position 2. If the "security" message is flashing quickly then you definitely have a passlock problem. Often it can be fixed by replacing the sensor on the key switch ($80?), and in some cases the BCM needs to be replaced (this requires coding to the car!). Having a remote start or an engine tune will bypass the passlock system.
#270
Looking for a solution????? Please help
I am having the same problem, car will not start security locks flashes when i try to turn the key. Replced started it worked for a while than back to the same thing. Sometimes it starts other times it dont. Very frustrating. Had the computer hooked up it showed no errors. Whats really going on????QUOTE=rags;142775]man im new on this board and i hope someone can shed some light,i have a 2002 monte carlo that worked fine for the last few years,i didnt drive it for awhile ,i had to charge the battery and i was going to start the car and nothing, no click no turn over ,the light flashes i can hear some clicking when i turn the key, i have tried all the internet fixes 10 minute wait,take the ignition apart ect, ive been out of work so i cant take it to a dealer can someone point me to the correct way to diagnose and fix this problem ,thanks rags[/QUOTE]