My '06 coupe doesn't blow out any kind of air. No hot air or cold air or any type of air for that matter. The lights on the dash turn on as if its working but no air comes out of the vents at all. With summer here I'm burning up inside to cockpit. I've been doing some research and I've been reading it most likely is the ac or blower relay. Does anybody know where that is located and how to get to it? Thanks in advance guys.

 

I do not have the wiring diagram for a 2006, but I can tell you that the wiring diagram for my 2003, power is supplied to the blower motor through fuses #10 and #11. Fan activation is controlled through the Display and A/C Auto Amplifier. I do not see a relay in the circuit for the blower fan, but again I am looking at a 2003 circuit. I experienced a problem when I first got my car where I would loose all of my A/C and Audio indications and could not control either one. After searching, I found a youtube clip that explained my problem. I could not believe that my A/C was controlled through the audio receiver, but it did. I replaced the unit with one I bought on ebay and the problem got solved. Hope this helps you.

 

I want to add that I would check the connector at the fan for security first. If it is on correctly, then I would check for power and ground with a Volt/ Ohm meter to rule out the fan. The fan could have gone bad.

 

I am going to take back what I said about the relay, Although not clearly shown in the wiring diagram, I would say that there is a relay built into the blower fan assembly. When the Display and A/C Auto Amp sends the signal to the blower fan, I am certain that the signal is being sent to a relay that activates and allows power from the fuses I previously mentioned to provide power to the fan. Again, I am making reference to my 2003 circuit.

 

Just to confirm, so you're saying there is a relay in back of the stereo face plate? I recently saw a video on YouTube and it showed a guy locating a relay on the bottom left side of the steering wheel.

 

Nope! not saying that at all. I did a little more digging around, and I found that the schematic wiring circuit in the Power Supply & Ground section PG-4 of the 2003 service manual does show a relay in the system. Section PG-60 & PG-72 shows the relay located in the Fuse Block - Junction Box in the area you described you saw on youtube.

The schematics shown in the Automatic Air Conditioner (ATC) section of the service manual, ATC-47 & ATC-48 do not show this relay so they threw me off when I was trying to help you troubleshoot. Section ATC-84 shows how to troubleshoot the blower motor.

Here is a thought, if you find this relay, see if there is another one like it used on another system and swap them for trouble shooting rather then buying one.

 

If you remove the driver side kick panel and remove the fuse box bolts, the relay is on the backside of the fuse panel. Yes there is 2 relays and they are cheap enough that you might as well replace them both. hope this helps guys.

 

The service manual references I provided in my post, Power Supply, Ground & Circuit Elements(PG) Section, page PG-60, shows the exact location of the blower relay. Are you saying that there are two relays in the blower motor circuit, or are you saying that there are two relays behind the left hand kick panel on the rear side of the Fuse Block (J/B) and you suggest he replace both because they are cheap?

develop1: As a precaution, keep in mind that the Fuse Block (J/B) is a "Hot Bus" it has 12V going to it as long as the battery is connected. I would recommend disconnecting the battery when troubleshooting or replacing the relay.

 

develop1

You can easily rule out the relay as a problem if you go to the connector on the fan motor and check for 12V at Pin 1 of the connector with the ignition switch in the accessory position. If you have 12V at Pin 1, then the relay is working. If you don't get 12V, you still have two fuses #10 & #11 (15 Amp each) that could also be the problem. The relay is not the immediate suspect if you don't get 12V, you have to rule out the fuses. The next thing to do, would be to check for ground at Pin 3. If you have a good ground at Pin 3, then the problem is either a bad motor or a problem with the Display and A/C Auto Amplifier circuit.

Keep in mind, all my comments are made based on my 2003 system circuit. I am certain that there aren't many differences with this system between your year and mine, but you would have to confirm that.