Slate

Wow. Can't believe these things cost 6 or 7 hundred dollars, and the dealerships are replacing the whole thing. That'd be a shame if they were all caused by a couple of cold solder joints.

I would test it out on my 07, but I just had the HVAC panel replaced by the dealer. Still under warranty, so it's all good.

So has anyone tried this yet?

engifineer

The dealer techs are not trained (even though this is pretty simple) to perform board level electronics repair, so in any case the dealer would just replace them. And this unit probably costs them closer to $100 most likely... maybe even less. So the time to even take it apart and do the work probably costs them as much as a new unit once they pay the techs time.

SquallLHeart

the units actually cost more around the $200-250 range, i think, at cost to the dealership..

but yeah.. still.. most of the techs won't be able to do anything that specialized.. and replacement is the easiest way for them.

ScionJim23

iTrader: (1)

watching...nice info Dave

O5_TRD_tC

When I took one back to the dealer, we left the car there for 2 hours. Upon my return they said it is because one "bulb" went out.

But I didn't care since they were going to replace it under warranty anyways. they can call it whatever they like!

engifineer

heh heh.. as long as they cover it.. doesnt matter what they call it :D Could have been the kanuter valve!

SquallLHeart

... ahahaha... omg...

theunclesam

I heard it's the flux capacitors that have been failing in these parts. I would replace mine, but I don't have the 1.1gigawatts needed to fire it up.

SquallLHeart

wasn't it 1.21 gigawatts??

that's what mr. fusion is for

Garage1217

iTrader: (5)

1.21 jiggawatts! And yes, I have that sort of power

ScionJim23

iTrader: (1)

haha

engifineer

pshh.... I s#!t 1.21 Gigawatts .....................

Garage1217

iTrader: (5)

Then you need to get with the jigga watts mang Jiggy is the only way to go!

zmulleni

I can send you mine if you want to test and in the meantime pop in some blue leds! lol j/k man I am gonna give mine a go this weekend and I will be sure to give this a shot because I do have the dreaded 07 HVAC with that issue! You sir will be a savior for all of us stuck with this problem... I will keep you posted to let you know if it works thanks for all your help!

zmulleni

Ok so I tried the swap on my 07 HVAC and all is well except...

1. The LCD screen is not lighting but is displaying time/climate ops.

2. The "new" hot/cold LED's are not lighting up

any suggestions? I did the gauges and they turned out great! Anyone willing to offer a fix if I can send it to you?

Thanks guys!

engifineer

Check the resistor and all leds under the LCD. Make sure the leds are polarized correctly, all solder joints are good, etc. If that is not the issue, then look for a dead led. Same goes for the temp **** leds.

So resoldering that transistor fixed the lighting issue on yours?

zmulleni

ok i am gonna give it another go on wed but I did the gauge cluster and no issues and it looks great with all lights working, just the hvac giving me issues, thanks for the insight i will be sure to apply it wed

engifineer

Still though.... did you have the 07 HVAC issue and correct it using the fix I posted in this thread? I need to verify that this is the same issues on others.

zmulleni

yea I did redo t302 and that works with no issues, headlights are on and most of the hvac is lighting up except for what I listed above, so I really think you might have something as far as thats concerned!

engifineer

Sweet... I will update the post/create a how to one on the fix then. Thanks!