Hello, my ac/heat button is not working. I can not turn o...

Hello and thank you for using JustAnswer. My name is \*\*\*\*\* \*\*\*\*\* I’ll be glad to assist you with your question today. I am an ASE certified technician and Service Manager with over 20 years of hands on experience helping to provide solutions for my customer’s issues. My experience includes both dealership and independent repair facilities in technical and customer facing roles, so I have the ability to handle the technical aspects and communicate them efficiently and effectively as possible. During this conversation you will receive an automatic offer for a phone call. This offer is not generated by me but by the website and is outside of my control. You may accept or decline that offer at your discretion. This is an optional service so if you’re interested I would be happy to speak with you instead of typing/texting back and forth. I’m sorry that you’re having unexpected issues with your vehicle and I will do my best to help you resolve them. Please understand that through this process we will be working together. As I am not there, you might be asked to work as my eyes and ears to help gather basic information to help identify and resolve your specific problem. As I don’t know your level of expertise, please don’t be offended if the questions I ask seem rudimentary, I am simply trying to guide you through the issue as simply and accurately as possible. My aim is to give you the best service possible by providing an accurate answer. Unfortunately, as you may be aware an accurate answer is not always a popular answer. Sometimes it will take me time to respond as I review your information, compare it to my resources and think through the potential options to ensure my answer is as accurate as possible. I appreciate your patience and remember even if I don’t respond immediately I am working diligently on your issue. Sorry to hear about your issue. Can you please tell me which button is not working and exactly what is happening? - Are you getting air out of the dash? - Does the unit on the dash work?

Good morning

Good morning

The button to turn on the unit

So when you twist the fan knob nothing happens or when you depress the fan knob the A/C light does not come on? - Are you getting air out of the dash? - Does the unit on the dash light up at all?

No nothing happens. That whole area does not even light up. Everything else lights up though.

Okay, let me verify the wiring and I'll be back with you.

Ok

Can you confirm if you have manual or automatic AC? Does it have 4 buttons across the top row or does it have an analog screen? See attached pictures and confirm which one you have.

Its like the 2nd picture..analog screen

Perfect. I'm pulling the wiring diagram now.

Alright

Okay, there are a few things that we can do. Do you have any electrical equipment or a scan tool?

Also, to confirm is the screen completely blank, correct?

CorrectNo i dont have any of those tools

The most likely issue is the unit in the dash itself, but there are some simple things that we can check first. Check fuses #14, 25 and 30 in the interior fuse box. . If all the fuses are good we need to pull the unit out of the dash and test for power and ground on the wiring harness going to the AC control unit in the dash. You have to remove the radio to get the AC unit out of the dash. Check for the following: . 1. 12v on light blue wire 2. 12v on green wire with engine started 3. 12v on pink wire with engine started 4. Ground on both black wires . Completing this testing requires a multi-meter. If you don't have one you can purchase one for under $20 at Walmart or any auto parts store. If you are not familiar with how to use a multi-meter then follow the link below to watch a video about multi-meter basics: [https://www.youtube.com/watch?v=k2LgvmWNVwc](https://www.youtube.com/watch?v=k2LgvmWNVwc) . If the power/ground tests out good you'll need to connect a scan tool to see if you have any failure codes in the system to diagnose the issue. This will require equipment we don't have and will most likely require a trip to a shop or dealer. . I’m glad that I was able to answer your question today. My goal is to ensure you receive a 5 STAR experience. Once you’re satisfied with my answer please take the time to rate me 5 stars at the top of your computer screen or by following the link on your phone. These ratings are extremely important to us experts. Tips are never expected by greatly appreciated as they make up a large part of our income. If you have further questions please request me by opening a new question and I’ll be glad to help you with any of your automotive issues. Thanks for using Just Answer!

Thank you

You're very welcome