Operation not Accepted Even If Air Conditioning Switch is Operated [11/2021 - ]: Description

WARNING: This page is about a different car, the 2025 Lexus NX 350h, 2024 Lexus NX 350h, 2023 Lexus NX 350h, and 2022 Lexus NX 350h. However, it is still accessible from the selected car via links, so may be relevant.

If the air conditioning system cannot be operated using the radio and display receiver assembly, the following factors may be the cause.

Symptom	Factor
Air conditioning system cannot be operated using radio and display receiver assembly (With the exception of the switch indicators, no inputs are reflected when other switches operated)	CAN communication malfunction between air conditioning amplifier assembly and radio and display receiver assembly Short to +B or ground in air conditioning amplifier assembly circuit Air conditioning amplifier assembly malfunction Radio and display receiver assembly malfunction Harness or connector