Blower fan speed controls not working on navigation screen?

2004 ACURA RL
210,000 MILES
Avatar
MADDTIX
  • MEMBER
  • 1 POST
The fan speed controls are on the navigation display. They just quit working one day but I didn’t have some A/C problems. The A/C is working correctly now but I cannot control the fan speed. I don’t know if this may be due to a bad trinary switch. Either on the high or low side. I just read that they might control the fan speed.
Oct 11, 2024 at 5:19 AM
Avatar
STRAILER
  • ✓Experienced Mechanic
  • 55,549 POSTS
Yep, I have seen the climate control unit fail and cause this problem, here is how to change it out to fix it. I would get a used one from ebay. Check out the images (below). Let us know if you need anything else.



Images (Click to enlarge)
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Oct 11, 2024 at 10:39 AM
🔧 Tools & Auto Repair Parts
Find automotive tools, diagnostic equipment, and replacement parts for your next repair.
Shop on Amazon →
Paid affiliate link. As an Amazon Associate, we earn from qualifying purchases.
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Ask a new question

Frequently Asked Problems for This Vehicle