CMAX Outside Temperature Sensor Problems

Sounds frustrating! Interesting that multiple systems are affected. Could a faulty sensor really cause all those issues? Have you checked the fuses related to the AC and mirror heating, just in case it's not directly linked to the temperature sensor?

Good idea! I haven't checked the AC and mirror heating fuses specifically. Where can I find a diagram showing the fuse allocation for these systems? Hoping it's just a simple electrical issue.

I'm not certain about the exact fuse locations for your CMAX. But given the range of issues and the stored error, I still suspect the temperature sensor or its wiring. Might be best to take it to a workshop for a proper diagnosis. They'll have the tools and expertise to pinpoint the problem quickly.

Appreciate the input and workshop suggestion! Took it to my local garage, and it was indeed the outside temperature sensor and its connection, just as suspected! The repair, including parts and labor, was about 95€. Thanks for pointing me in the right direction; your help was invaluable!