Every time you pull the battery or it goes dead, do you have to re-do the security relearn procedure?
Every time you pull the battery or it goes dead, do you have to re-do the security relearn procedure?
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
well ive removed the battery a number of times and i didnt have to relearn anything... ive only had to do it once and that was when i hooked the new computer thats been unplugged (from the junk yard). once i hooked it up and tried to start my car i got that yellow light (security light that is)
clint
1987 5.3 4l60e Silverado - daily driver with A/C,P/W,P/L,TILT and HID projectors - also for sale @ $8,500
A poor man buy's it twice
That's good to know! I tried it on mine and it wouldn't fly but I don't have a BCM to talk to the PCM.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
well what i said earlier applied to a 2001 silverado v6 -> 5.3
i also stuck a 5.3 in my 87 with a factory 5.3 harness + 5.3 comptuer with the security feature disabled.
clint
ive also removed that battery cable more than once
1987 5.3 4l60e Silverado - daily driver with A/C,P/W,P/L,TILT and HID projectors - also for sale @ $8,500
A poor man buy's it twice
just ordered the tune!!!!should be here on Wednesday!!
heres my problem i got a 4.3L v6 on a 99 silverado. i brought a 5.3L v8 (junk yard it was a stolen truck insurance job)i got it complete with engine harnes and computer. i try to start it and it starts but dies immediately. and the only way it will stay on is with starting fluid. so they told me it was the computer so i went and brought another computer(junk yard) and it did the same thing. so i need some help thanks
the security relearn procedure, do a search for it. its a simple but time oriented job.
something about key on for x minutes and turn off wait turn on... like i said it its time oriented. nothing else.
once you relearn it, it will fire right up. guarenteed if its all OE like it probally is.
clint
1987 5.3 4l60e Silverado - daily driver with A/C,P/W,P/L,TILT and HID projectors - also for sale @ $8,500
A poor man buy's it twice
You need to reset the security code in VATS.
1. Turn the key on to start the engine, then release the key to the ON position.
2. The security light will flash for 10 minutes then go off.
3. Turn key OFF after security light has stopped flashing.
4. Leave the key off for 10-20 seconds. Not sure if you have to wait but it won't hurt. Repeat steps 1 to 3 for 2 more times for a total of 3 attempts. The vehicle should start on the 4th attempt. This procedure takes at least 30 minutes. The battery should be fully charged and deliver more than 10 volts.
1987 5.3 4l60e Silverado - daily driver with A/C,P/W,P/L,TILT and HID projectors - also for sale @ $8,500
A poor man buy's it twice
Originally Posted by modular93fox
You know the real procedure. It doesn't always work on non-transponder vehicles though (no chip in the key)
on for 10 minutes, when the security light goes out turn it -quickly- to the off position and right back to the run position with no delay between, 10 more minutes, off and on again, after the third 10 minute wait turb it to the off position and wait a few seconds but don't take the key out. IT should start right up.
none
ok..got it fired up...nelson tune did the trick...for some reason the transmission is in safe mode or whatever...it only gets 2nd and 3rd...it was fine before the swap...and it has a miss...and the check engine light is on....but...i did get to drive it today!!!
Posting Permissions
Reply With Quote
