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Blower fan speed controls not working on navigation screen?

Tiny
MADDTIX
  • MEMBER
  • 2004 ACURA RL
  • 210,000 MILES
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.
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Friday, October 11th, 2024 AT 12:19 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 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.
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Friday, October 11th, 2024 AT 5:39 PM

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