Passkey reset issues

[giroux68]

After doing some work on my 2010 Denali, the pass key decided to not work. Security light is steady. I've done the 3x 10 minutes. And nothing. Disconnected the battery over night...nothing. Different keys..nothings. any other idea? Thanks.

DOD delete..etc. All was well prior

 

[Joseph Garcia]

It seems like you have taken all the right steps, but unfortunately, I cannot personally assist you with your issue, as I have not yet personally walked through this process yet. Other members of this Forum much more knowledgeable than me in this area will chime in. @OR VietVet @Marky Dissod @Doubeleive @swathdiver

 

[Marky Dissod]

After doing some work on my 2010 Denali, the pass key decided to not work. Security light is steady. I've done the 3x 10 minutes. And nothing.
Disconnected the battery over night ... nothing. Different keys ... nothings. any other idea? Thanks.

DOD delete ... etc. All was well prior.

Did you physically delete Engine Half@$$? Or did you just have it disabled?
Either way, what steps were taken during the disablement?

 

[mikez71]

VATS can be turned off in tune. Possible it was turned off, but you didn't write the new OS?

BCM turns on the light..
Passkey3+ module (rcdlr?) reads the key and communicates with the BCM.
Broken antenna ring in the ignition could also cause this.

A good scanner might narrow down where the problem is.

 

[OR VietVet]

I would still want to know what work was done, in great detail.

 

[Doubeleive]

After doing some work on my 2010 Denali, the pass key decided to not work. Security light is steady. I've done the 3x 10 minutes. And nothing. Disconnected the battery over night...nothing. Different keys..nothings. any other idea? Thanks.

DOD delete..etc. All was well prior

when you did the 3X10 on the last 10 did you then try to start or turn it back to off again?

 

[giroux68]

Yes. And did it again with just trying to start.

 

[giroux68]

I had the DOD done with a Texas speed cam and a tune at a local shop over a year ago. I had some evap leak issues and a fuel gauge problem last week. Dropped the tank and found a vent line unhooked and replaced the fuel pump. Evap and fuel quantity fixed. I got rich bank 1 and 2. Fuel alcohol level is at 78%. I disconnected the battery to reset the alcohol %. Didn't work. But 2 or 3 days later it wouldn't start. And the pass key security light on dash is on. Keys in the ignition warning ding with door open not working. I tried the 1 hour reset I found on YouTube too. I'll try the 10 minute cycle again and go for 4x or 5x. I have a blue driver OBD2 reader.

 

[giroux68]

Ran the blue driver OBD2.

 

[giroux68]

I did try the BCM fuse pull tech. I found on YouTube. So these might be from swapping fuses.

 

[giroux68]

Re did the OBD2 read. B1380 and u1814
So I'm leaning towards a new ignition switch or new BCM.

 

[SuperDave]

Any updates?? I'm dealing with the same issue on my 10 PPV