hvac control module location

[daytripr69]

been dealing with ac issues for a while now, compressor grenaded on my wifes 2010 lt. replaced compressor, condenser, expansion valve and pressure switch and flushed the lines before installing new parts. hooked up gauges and added r134 until i had approx 40psi in the system. start car compressor wont engage. bypass relay and comp engages, charge system remove jumper and still no ac clutch engagement. put scanner on car and the ac request stays on no when turning on or off at the switch. ordered new climate control head but im afraid ill need the module and have no idea where it at and google sucks. cant be having my wife and kid in a black car in fl in the summer with no ac, help! its either fix it or burn it and the wife likes the car so....

[InFiD3ViL]

Here is a blown up view of the entire interior HVAC system with the parts listed. Component number 5 is the HVAC Control Module. So in the car it would look to be behind the glove box or in that location, as in that diagram the arrow is facing the engine.

[TommyTheCat]

i might be reading this wrong but... you bypass the relay and then the A/C engages normally? might just be a bad relay? swap it with another if you haven't already just for a quick test

also keep in mind that if you need to replace that module you will need to program it with a scan tool also

[Badbubba]

Not related to your issue, but did you add the correct amount of oil to the system?

[daytripr69]

Originally Posted by TommyTheCat

i might be reading this wrong but... you bypass the relay and then the A/C engages normally? might just be a bad relay? swap it with another if you haven't already just for a quick test

also keep in mind that if you need to replace that module you will need to program it with a scan tool also

already tried that. when on the scanner the request for the ac was never recieved. ordered new switches from a salvage yard as everywhere else says no longer available. had one ordered from gmpartswarehouse.com but they canceled the order and refunded my money.

[daytripr69]

Originally Posted by Badbubba

Not related to your issue, but did you add the correct amount of oil to the system?

yes dont remember the exact amount the car takes but comp was shipped with 2oz in it and i added more to bring it up to the total required.

[CamaroBarb]

Originally Posted by daytripr69

already tried that. when on the scanner the request for the ac was never recieved. ordered new switches from a salvage yard as everywhere else says no longer available. had one ordered from gmpartswarehouse.com but they canceled the order and refunded my money.

What switches are not available?

[daytripr69]

Originally Posted by CamaroBarb

What switches are not available?

im guessing not, havent called a dealer. was waiting on the bucket of lube to get here first.

[2011SS2SS]

Originally Posted by InFiD3ViL

Here is a blown up view of the entire interior HVAC system with the parts listed. Component number 5 is the HVAC Control Module. So in the car it would look to be behind the glove box or in that location, as in that diagram the arrow is facing the engine.

Where did you pull this diagram from??? I have looked all over the internet for similar information & can not much of anything!! I would LOVE to find a site with these type of diagrams!!

[InFiD3ViL]

Originally Posted by 2011SS2SS

Where did you pull this diagram from??? I have looked all over the internet for similar information & can not much of anything!! I would LOVE to find a site with these type of diagrams!!

That's from the 2010/2011 Camaro Repair Manual, and it freaking awesome. It's been hosted by various people on here in pdf form from time to time. It's a 150MB, 10,000+ page pdf file. so it's kind of a PITA to share. Best bet is if someone hosts it in a Google Drive link, or similar. This manual has been absolutely invaluable to me over the last couple of years.

Edit: Here, see if this works. Just make sure to download it and not try and open with a browser or other program until it's fully downloaded or it will crash your browser. I've been active on these forums for 4 years and have tons of posts, so I can promise you it is safe.

https://drive.google.com/file/d/0B7t...ew?usp=sharing

[2011SS2SS]

Originally Posted by InFiD3ViL

That's from the 2010/2011 Camaro Repair Manual, and it freaking awesome. It's been hosted by various people on here in pdf form from time to time. It's a 150MB, 10,000+ page pdf file. so it's kind of a PITA to share. Best bet is if someone hosts it in a Google Drive link, or similar. This manual has been absolutely invaluable to me over the last couple of years.

Edit: Here, see if this works. Just make sure to download it and not try and open with a browser or other program until it's fully downloaded or it will crash your browser. I've been active on these forums for 4 years and have tons of posts, so I can promise you it is safe.

https://drive.google.com/file/d/0B7t...ew?usp=sharing

Thanks man!! That's awesome!!!!!

[2011SS2SS]

Originally Posted by InFiD3ViL

That's from the 2010/2011 Camaro Repair Manual, and it freaking awesome. It's been hosted by various people on here in pdf form from time to time. It's a 150MB, 10,000+ page pdf file. so it's kind of a PITA to share. Best bet is if someone hosts it in a Google Drive link, or similar. This manual has been absolutely invaluable to me over the last couple of years.

Edit: Here, see if this works. Just make sure to download it and not try and open with a browser or other program until it's fully downloaded or it will crash your browser. I've been active on these forums for 4 years and have tons of posts, so I can promise you it is safe.

https://drive.google.com/file/d/0B7t...ew?usp=sharing

Man, I just went through a bunch of stuff on that resource... WOW!! I LOVE IT!! CANNOT thank you enough!!!!! THIS IS WHAT THIS SITE SHOULD BE ALL ABOUT!! Education, helping each other, & providing resources for other owners!! I LOVE IT!! So far this site has helped me find MANY things I have needed help with as a new 5th Gen owner. THRILLED I found this resource!!

You are AWESOME!!!!!! Was searching the car over for a couple of days for the dang HVAC control Module... 1 minute spent with this resource you just provided & I went right to the car & found it!!

Thanks again!!!!!

[2011SS2SS]

Now, I just have to figure out my issue with the HVAC control module...

Took the car to a self proclaimed "5th Gen Camaro Specialist & Mechanic"... The AC had quit blowing cold... Still switches over to heat & back to ambient air... But does not get cold. Blend Door has been inspected & is GOOD (Thank God)... The "Snap on Legend" diagnostic said: B3933 - AC Evaporator Temperature Sensor Short to Ground/High Voltage/Open... So I thought, great easy/cheap repair. Replace it & get the cold goodness again!! "5th Gen Specialist" had the car so he order a new sensor & put it in... All is good & cool again, right??? NO, now the Snap On will not even communicate with the HVAC Control Module AT ALL... Nothing changed except the Evap Temp Sensor has been changed. But still same symptoms... Will change to HOT air, & back to ambient air... But NO Cold air... Any ideas guys??? All fuses & relays are good.

[gtstorey]

The wiring to the sensor would be the next step. You "5th Gen Specialist" should have a factory service manual to follow the step by step instructions to trouble shoot the code and should have followed them before buying the sensor, unless the sensor was dirt cheap.