AUTO LIGHT SENSOR OPERATION

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Caution

• In the following cases, the auto light sensor cannot detect the illumination level correctly which could cause an auto light malfunction:

― A sticker or label is adhered to the windshield above the auto light sensor.

― The windshield is dirty above the auto light sensor.

• The auto light sensor is installed to the lens which is installed to top center area of the windshield

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• The auto light sensor is integrated with the rain sensor as a single unit.

• The upward and forward illumination level sensors which detect the level of illumination above and in front of the vehicle respectively are built-in.

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Function Description

Illumination level adjustment function

• The illumination level sensitivity can be switched between two levels using the Mazda Modular Diagnostic System (M-MDS).

On-board diagnostic function

• If there is any malfunction in the auto light sensor, the auto light/wiper control module is informed of the malfunction and a DTC is detected.