Climate control panel not working?

DOUG SULLIVAN

MEMBER
2021 NISSAN ROGUE
AUTOMATIC
130,000 MILES

The air conditioner control unit on my wife's vehicle listed above SL just went blank a while back. No lights on the board, can't adjust temperature, can't change fan speed, nothing. We took it in, and they said the control unit itself is bad. After 3 weeks of them not being able to get a new one I found a used one online from a salvage yard. Took it to them and they are telling me it's bad also. There is no way both units are bad, but he says they are throwing the same code of a control unit malfunction. What else could be causing something like this? It's 100+ here in Houston, TX and the A/C needs to work, and I need the car back!

1 Reply

KEN L

MASTER CERTIFIED MECHANIC
42,940 POSTS

It sounds like the A/C amplifier or the IPDM is going out. When they checked the system, did they do a CAN scan to help determine the problem? You are right, the chances of two parts being bad is pretty remote. You can get a CAN scanner (Controller Area Network) which will work on most cars from Amazon.

here is a video to show you how:

https://youtu.be/u-4syLc-ifQ

and

https://www.2carpros.com/articles/can-scan-controller-area-network-easy

Here is one for about $99.00 if you need it:

https://amzn.to/3ZixY4v

Here are the HVAC system wiring diagrams so you can see how the system works. Also, we need to know if the system fuses have power, this guide can help, and you can use the wiring diagrams to see which fuses (12 of them) need to be checked.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Here is the A/C amplifier location and how to replace the IPDM in case codes come up for them. Check out the images (below). Let us know what happens and please upload pictures or videos of the problem so we can see what's going on.

Images (Click to make bigger)