HVAC Problems

[Dude]

Its b I was the one who ordered the part as I work at the dealership

Yes which part # of those 4 did you order

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[Dude]

And the external (outside) ambient air temperature sensor also plays a role in the HVAC System

this could also be the cause of your issues

This is located at the front of the vehicle

 

[kthorg23]

Interesting the diagram makes it look like on the dash

 

[Dude]

Interesting the diagram makes it look like on the dash

Common mistake others have made as well

 

[kthorg23]

Yes which part # of those 4 did you order

I ordered the b number

 

[kthorg23]

And the external (outside) ambient air temperature sensor also plays a role in the HVAC System

this could also be the cause of your issues

This is located at the front of the vehicle

My vin does pull up a ton of codes none of which seem to give and answer on what exactly is going on other than modules not communicating properly

 

[Glamdring70]

Yeah, what @Dude said ^. The interior sensor is easy to get by the mirror. The external one is the one that knows when it's a 75 degree day. The buried temp sensor is to measure the A/C air and adjust the compressor system.

 

[kthorg23]

Yeah, what @Dude said ^. The interior sensor is easy to get by the mirror. The external one is the one that knows when it's a 75 degree day. The buried temp sensor is to measure the A/C air and adjust the compressor system.

Would that really be something to cause the hvac to just shut its self off?

 

[Dude]

I ordered the b number

It would not be the first time the same part needed to be replaced again

it seems likely it’s the b part (again) … because what else would cause the HVAC display to go blank

well the fuse, the wiring, the connector …
Rodents chewing on wiring …

the inside and outside ambient temperature sensors .. I do not know if one of these failed (at 75°F) if that would cause the HVAC temp control to go blank

And since you have the dual controls, do both go blank? I think your video just showed the driver side control

 

[kthorg23]

It would not be the first time the same part needed to be replaced again

it seems likely it’s the b part (again) … because what else would cause the HVAC display to go blank

well the fuse, the wiring, the connector …
Rodents chewing on wiring …

I can verify its not rodents and sounds like not an issue I will be able to get fixed.

 

[Dude]

I can verify its not rodents and sounds like not an issue I will be able to get fixed.

I updated my prior post to add a question, not sure if you saw that

 

[kthorg23]

I updated my prior post to add a question, not sure if you saw that

Its the whole entire thing like I have no power to it what so ever so no air comes out its basically as if you've hit the power button on it

 

[Dude]

Got it, both driver side and passenger side digital temperature dials go blank at around 75°F and the HVAC is inoperable

is it the outside temp at around 75°F when this occurs or the temp inside the vehicle?

my next post will include things to check … some you can do yourself

 

[kthorg23]

Got it, both driver side and passenger side digital temperature dials go blank at around 75°F and the HVAC is inoperable

is it the outside temp at around 75°F when this occurs or the temp inside the vehicle?

my next post will include things to check … some you can do yourself

Outside temp not sure what the inside temp.is since when its doing the issue it doesn't give a temp. And its 75 or above so basically when its hot outside

 

[Glamdring70]

Does the whole panel not have any power, including the ambient backlighting at night? The lighting comes from another source. The control function is tied one module, the lights to BCM.

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