CONSTRUCTION
The smog ventilation sensor is used on models with automatic recirculation control.
The smog ventilation sensor detects harmful elements such as CO, HC, and NOx, which are present in the air outside of the vehicle. The sensor outputs it to the air conditioning amplifier assembly.
The sensitivity of the smog ventilation sensor can be adjusted. Adjustment can be performed using the air conditioning control assembly. For details, refer to the Repair Manual.