What are these and where do they go?

[Jermbola]

Hello all,
I am new to the forum. First post and looking for some help. I have done a full paint restore on the 'ol Yukon. All that could come off did. Months later I cant remember where this goes, or what it is for that matter. I have it all back together since this picture. Working through this and some codes it is throwing out. Thanks in advance.
2005 GMC Yukon 4wd SLT

 

[OR VietVet]

Welcome to the forum from Oregon.

Are those air bag sensors?

 

[S33k3r]

Hello all,
I am new to the forum. First post and looking for some help. I have done a full paint restore on the 'ol Yukon. All that could come off did. Months later I cant remember where this goes, or what it is for that matter. I have it all back together since this picture. Working through this and some codes it is throwing out. Thanks in advance.
View attachment 409683

Could you please give a little more details about your rig? There are people that are going to know things better than me, but there were some electrical system changes between 2002 and 2003+. So knowing more about your Tahoe/Yukon/Escalade would make it much easier to figure things out for you. Also, you could open a post about the codes you're getting if you would like suggestions about fixing them.

Finally, Welcome to the forums!

 

[Meathead16]

That's the ambient air temp sensor for the rear view mirror temp display.

 

[Meathead16]

There is a bracket that is mounted in the radiator / grill area that that piece will snap into. Looks like this:

 

[Joseph Garcia]

Welcome to the Forum from NH.

Lots of knowledgeable folks here who freely share their knowledge, experiences, and perspectives. Knowledge is power.

I hope that you will become a participating member in the Forum's discussions.

Pics of the truck, please.

You are already receiving sage advice from the knowledgeable folks on this Forum.

 

[Jermbola]

Could you please give a little more details about your rig? There are people that are going to know things better than me, but there were some electrical system changes between 2002 and 2003+. So knowing more about your Tahoe/Yukon/Escalade would make it much easier to figure things out for you. Also, you could open a post about the codes you're getting if you would like suggestions about fixing them.

Finally, Welcome to the forums!

Great advice. I added some more info. Thanks for the welcome.

 

[Doubeleive]

Welcome to the forum from Oregon.

Are those air bag sensors?

MAAANNNNN, NOOO

 

[Doubeleive]

Hello all,
I am new to the forum. First post and looking for some help. I have done a full paint restore on the 'ol Yukon. All that could come off did. Months later I cant remember where this goes, or what it is for that matter. I have it all back together since this picture. Working through this and some codes it is throwing out. Thanks in advance.
2005 GMC Yukon 4wd SLT

View attachment 409683

like stated it is a ambient air temp sensor, usually they mount up on the radiator support bracket, it doesn't have to go exactly where it was just where it can read the air passing thru, so not behind the radiator or external trans cooler (if equipped) otherwise it will read incorrectly. to the side of the radiator or in front of it is fine.

 

[Jermbola]

That's the ambient air temp sensor for the rear view mirror temp display.

Thanks Meathead16. With all I pulled apart this one had me stumped.
There is a bracket that is mounted in the radiator / grill area that that piece will snap into. Looks like this:

View attachment 409694

 

[Jermbola]

Thanks all. Glad I joined the forum. I am working on getting some pictures put together of the final product. The Yukon has been in the family since 2011. It has survived many adventures and one teenager so far. The next one is about ready to drive. Hence the paint job to spiff it up a bit. Next on the list is getting it lifted, then the interior.

 

[OR VietVet]

MAAANNNNN, NOOO

I took a WAG. Never seen one before.

 

[Jermbola]

I took a WAG. Never seen one before.

I initially thought they were some type on impact sensor. Then found some similar images that showed an air temp sensor. That's what lead me to the initial post. I was lost. Thanks all. This forum is a great resource.

 

[Meathead16]

As a (general) rule, sensor connectors that are related to the SRS system will, at least in part, if not all, be yellow.

 

[S33k3r]

These are the only style of sensors I'm aware of, besides what's under the seats:

 

[Doubeleive]

These are the only style of sensors I'm aware of, besides what's under the seats:

View attachment 409940

not sure what year's they started but a smaller version of those can be found inside the door's also for side impact detection. they are mounted in the center of the door on the center brace

 

[S33k3r]

not sure what year's they started but a smaller version of those can be found inside the door's also for side impact detection. they are mounted in the center of the door on the center brace

Thanks! Got any pictures? We should post a thread with all the GMT 800 sensors like that and sticky it.