Lexus GS Blower Motor AUC Sensor Issue

I had a similar problem with my GS. The AUC sensor, or cabin air quality sensor, can mess with the HVAC system. If it sends bad data, the blower motor might not work right. Check the cable and plug connection to the sensor. A bad connection is often the cause. Have you looked at the wiring for damage?

When you say check the cable and plug, can you give more detail? What should I look for? I'm not experienced with auto electrics.

Make sure the connector is secure. Check for bent or broken pins. Look at the wiring for fraying or cracks. Given your lack of experience, a technician might be best. Based on my research, budget around 95€ for the repair. It seems to be a common issue.

I brought the Lexus to a local workshop. It was a faulty connection at the AUC sensor like you said. They fixed it, and the blower motor works now. Thanks!