Security/VATS/Passlock Issue

[someotherguy]

I dont remember what the exact resistance value is, I just know that when I walked into orilleys and said I needed a resistor for my Chevy ignition, the guy laughed and said this was what I needed and that they sell a lot of them. You are correct that the value can change and I did have one go bad while I was trying to fiddle with my diy ignition solution, but the one I have now has been in my truck for nearly a year I think and I haven’t had a single issue with it. I know tuning it out is the correct solution but that wasn’t in the budget at the time and since it hasn’t given me problems I’m not worried about it. Also, living in California I have to deal with smogging it and if they can tell you tuned something out you’ll fail and that’s a bigger nightmare to deal with than intermittent passlock problems in my opinion.

I can understand your apprehension to any tuning since you live in a state that is oppressive to such activities.. however.. I don't think they can tell if you simply disable the Passlock in the tune. I could be wrong; maybe others can comment. Surely we have plenty of members here that are in Cali and have done this.

Richard

 

[extramile71]

And when Canada Post is on strike too....

No he is in Missouri

 

[EvantySeven]

Buy HP Tuners interface with 2 universal credits. They literally give you a short document that is super easy to follow to get it up and runnning. Basically it is like this. Download software to your laptop. Connect the interface to the laptop and truck, I prefer a hardwired connection vs bluetooth. Sync your interface after setting up your liscensing on HPTuners website. Read your trucks stock tune file and save it. Go into the system tab, find VATs. Switch to Disabled. Save your file again under a new name with something like VATS Deleted. Then write the VATs deleted flash your PCM. Literally takes 10 minutes and saves you $500 (plus the tow if he wants the whole truck) compared to the guy wanting to charge $1000. The VATS will never cause any kind of issue again. You could literally remove the VATs module from the truck. Now you also have a very nice and highly capable tuning and scanning program for many vehicles VCMs. You can use it to set the CMR and perform a crank relearn if you ever need to as well. If you want to dive into some basic tuning there are very basic changes that can be made to really wake the engine up and some transmission adjustments that will add to its life and make it shift much more responsively rather than the bogamatic rubber band slushbox it starts life as.

This is looking like my best bet right now. As much as I love these trucks, I really wish GM wouldn’t put such a stupid system in place. Seems like all it does is inconvenience owners. I wish there was another process or repair I could try, but my truck has been down for too long and I’m desperate at this point, it’s not making me any money sitting in my driveway.

 

[EvantySeven]

Buy HP Tuners interface with 2 universal credits. They literally give you a short document that is super easy to follow to get it up and runnning. Basically it is like this. Download software to your laptop. Connect the interface to the laptop and truck, I prefer a hardwired connection vs bluetooth. Sync your interface after setting up your liscensing on HPTuners website. Read your trucks stock tune file and save it. Go into the system tab, find VATs. Switch to Disabled. Save your file again under a new name with something like VATS Deleted. Then write the VATs deleted flash your PCM. Literally takes 10 minutes and saves you $500 (plus the tow if he wants the whole truck) compared to the guy wanting to charge $1000. The VATS will never cause any kind of issue again. You could literally remove the VATs module from the truck. Now you also have a very nice and highly capable tuning and scanning program for many vehicles VCMs. You can use it to set the CMR and perform a crank relearn if you ever need to as well. If you want to dive into some basic tuning there are very basic changes that can be made to really wake the engine up and some transmission adjustments that will add to its life and make it shift much more responsively rather than the bogamatic rubber band slushbox it starts life as.

Also… I’m in Canada. The MVPI 3 + two universal credits is just over $700 CAD for me, that’s without shipping or tax. Looks like it’ll cost me a grand no matter what route I take. Thankfully I can save some money on the tow, as I drive a tow truck myself. Thankfully no security issues on the 2024.

 

[Cadillacmak]

Also… I’m in Canada. The MVPI 3 + two universal credits is just over $700 CAD for me, that’s without shipping or tax. Looks like it’ll cost me a grand no matter what route I take. Thankfully I can save some money on the tow, as I drive a tow truck myself. Thankfully no security issues on the 2024.

Anyone in Canada that would let you borrow one?

 

[Azdrtdog]

I didn’t read everything and I’m not sure if you saw the issue or not, you just have to do a relearn of the ECM to the BCM. Turn the key to the crank position release leave it in the on position for 15 minutes until the security light quits flashing Cronkite again leave the key in the own position. Sometimes it takes three times for the BCM and the ECM to reset to each other. Do not go back to the office position leave the key in the on position every time and it will relearn the VAts

 

[Azdrtdog]

Talk to text is really stupid, just read between the lines of everything you don’t understand.

 

[Supercharged111]

This worked for me:

how to bypass the security

i have 1998 chevy ext. shortbed truck and my security is giving my problems classic problems no start start and die light flashing i need help bypassing it please

www.gmt400.com

I let it fire and die instead of avoiding starting it.

 

[Azdrtdog]

Correct, it will fire and die until the anti theft relearns. When you turn the truck off the pcm and the bcm send each other a code that has to match when restarted or it kills power to the fuel pump after a few seconds, when the battery goes flat during a start the code doesn’t always get set and the modules are out of sync.

 

[EvantySeven]

This worked for me:

how to bypass the security

i have 1998 chevy ext. shortbed truck and my security is giving my problems classic problems no start start and die light flashing i need help bypassing it please

www.gmt400.com

I let it fire and die instead of avoiding starting it.

When I let it fire and die, symptoms do not change. Security never flashes and vehicle never goes into relearn mode. Just attempted to relearn again by firing and letting it die doing the same procedure with the resistor in place and no change in symptoms.