Passlock - 2001 silverado

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Old 02-13-18, 12:58 PM
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Passlock - 2001 silverado

Hi forum i need help bad!!!Ok i have a 2001 silverado 1500 ls 5.3l v8 and i tried to program a aftermarket fob with no luck i read some where online that my keyless entery receiver might not be working so today i went to my local pick n pull and got a receiver out of a 2000 chevy 1500 i came home took dash apart un hooked the exsiting receiver took it out and put the other one from junk yard in. Put evert thing back together tryed to program fob and nothing just like the stock one!! So i figured oh well it's not gonna work so i started my truck and after a couple seconds truck sputterd and died!!! I started it again and it died!! Now it wont start at all!! This has never ever happend to me in this truck!! So i thought it has to be the receiver from junk yard so i took dash apart again and put the original receiver back in! And my truck still wont start!!!! I tried the relearn program, were you put key in the on/run for 10 mins turn off for 10 sec, then on/run for 10 mins then off again for 10 sec then on again for 10 mins then off 10 sec then try to start and it just turns over and over no start!!! Also on the 10 min relearn reprogram trick all forums say that when you start the reprograming that the security light will flash or stay on solid, when the key is on and to wait for security light to stop flashing or turn off which takes 10 mins. but when I turn key on only the red battery light comes on flash's once and stays on. and is also where security light is it is the same window. I don't know why this is? because I have a battery charger hooked up to battery. The truck ran perfectly that day and always has till i changed out the keyless entery receiver please can any one please help!! Thank you so much for any help!!
 
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Old 02-14-18, 07:39 AM
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Welcome to the forums.

I was searching in depth where the passlock is controlled from and it appears that it's the BCM (body control module). I would recommend reinstalling the original BCM and remove battery for several hours. The computer may not recognize a module or change without being restarted.

Since the anti-theft light isn't flashing at all... make sure all the plugs are back in the BCM.

The red battery warning light just means there is no vehicle charging going on. The car has no idea how well charged the battery actually is.
 
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Old 02-19-18, 05:36 AM
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bcm

hi pjmax thank you so much for all the digging you did for me. but I didn't remove the bcm, what I removed was the keyless entry receiver and put another receiver when truck died I reinstalled the original receiver I took out thing it would fix it but it didn't.

thanks again pjmax!!
 
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