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martin_nacht98

Lexus LC Blower Motor Failure

I'm having a weird issue with my 2022 Lexus LC hybrid. The blower motor isn't working. I've checked all the fuses, and they seem fine. I've got 153912 km on the clock, and this just started. Any ideas?

Summary of the thread

The blower motor in a 2022 Lexus LC hybrid stopped working, despite all fuses being intact. A suggestion was made to check the AUC sensor, which can affect the HVAC system if faulty. Upon inspection, a defective cable to the AUC sensor was identified as the issue, and after repair, the blower motor functioned correctly again.

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4 comment(s)

tildasmith71

Sounds familiar. I had a similar problem with my BMW 5 series; it turned out to be the AUC sensor. Do you have any errors in iDrive or any warnings on the dash?

martin_nacht98 (community.author)

AUC sensor? Where is that located, and what does it do? Is that something that would completely kill the blower motor? Never heard of it!

tildasmith71

It's the auto recirculation/air quality sensor, usually located near the HVAC intake. A faulty signal can mess with the whole system. I would check the cable and plug connection. I'm not saying it's definitely that, but that was the culprit for me. If you're not comfortable digging around, a workshop visit might be in order.

martin_nacht98 (community.author)

Thanks! After you mentioned the AUC sensor, I took it to the shop. They confirmed it was a defective cable to the AUC sensor. 95€ later, everything is working perfectly again!

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LEXUS

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LC