Lexus GS Solar Sensor Fault

Interesting. I had a similar problem with my 2016 Audi A4. The climate control was acting strangely. Did you check the sensor's readings with a scan tool? It might give you a better indication of what's going on before you start tearing things apart.

Yes, I have checked the sensor readings. The values appear erratic and inconsistent with ambient daylight conditions. Did your Audi A4 exhibit comparable symptoms prior to resolution?

Yes, definitely. The sensor readings were all over the place on my Audi too. Based on my experience, it's probably best to get it checked out at a workshop. They'll have the right tools and expertise to diagnose the wiring properly.

Understood. Thanks for sharing your experience. I will proceed with a workshop visit. The issue was indeed the solar sensor cable, and the repair cost 95€.