What did you do to your NNBS GMT900 Tahoe/Yukon Today?

[Doubeleive]

I was hoping that theft data would tell me which sensor set the alarm off, but it shows like it never went off.

might be in the history codes, otherwise it probably only shows it when active

 

[mikez71]

I remember having codes for my tilt sensor when that was the culprit..
Since you got liftgate open messages, I would guess it to be the hatch or the glass..

Seems like they share the AJAR signal the more I look at it..

 

[gooffeyguy]

Well I just got home from running some errands and it hasn't done anything weird. Hope that by opening both liftgate and the glass and making sure nothing was hindering it's closing and also spraying the latch mechanism with GM multipurpose lubricant fixed the problem.

My wife said I probably picked up a ghost, lol.

Oh, and the message on the DIC says "Rear Access Open" and not Liftgate Adjar or anything like that, so just kinda vague.

 

[bobsburban]

Got a full transmission service/flush and installed the backup Cold-Case aluminum radiator in the 2500 'Burb this week. Wife noted the need for shocks as we drove to and from a gathering last night. They were next on the list anyway.

Put the 1500 up for sale. We shall see. I'd like to recoup two-thirds of what I paid for the 2500 and if not that, at least cover the cost of the new gutter guards...

 

[Doubeleive]

Well I just got home from running some errands and it hasn't done anything weird. Hope that by opening both liftgate and the glass and making sure nothing was hindering it's closing and also spraying the latch mechanism with GM multipurpose lubricant fixed the problem.

My wife said I probably picked up a ghost, lol.

Oh, and the message on the DIC says "Rear Access Open" and not Liftgate Adjar or anything like that, so just kinda vague.

you can determine which one it is saying by opening either the hatch or the glass and then go put it in drive

 

[gooffeyguy]

you can determine which one it is saying by opening either the hatch or the glass and then go put it in drive

Nope, they both say "Rear Access Open" whether it's in park or drive.

 

[Sparksalot]

Nope, they both say "Rear Access Open" whether it's in park or drive.

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That’s what mine does too.

 

[mikez71]

Yep, if you look at the diagram, the two signals are spliced together...



If it keeps happening, you could unplug one of the ajar switches to test, as the other will still work.
I would be especially careful with the wiper while disabled.

 

[gooffeyguy]

Yep, if you look at the diagram, the two signals are spliced together...

View attachment 435055

If it keeps happening, you could unplug one of the ajar switches to test, as the other will still work.
I would be especially careful with the wiper while disabled.

Is the ajar switch separate from the closure mechanism or is it in the mechanism and just has a separate wire connector?

 

[Doubeleive]

Nope, they both say "Rear Access Open" whether it's in park or drive.

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wierd I thought they showed different but I think I only had the message come up twice in the last 7 years