Sunload Sensor Inspection

WARNING: This page is about a different car, the 2011 Suzuki SX4. However, it is still accessible from the selected car via links, so may be relevant.

Reference: SUNLOAD SENSOR REMOVAL AND INSTALLATION: AUTO A/C

Light over sunload sensor vertically with an incandescent light of approximately 100 W. The distance between sunload sensor and light should be approximately 100 mm (3.94 in.).
Measure voltage between terminals "a" and "b" of sunload sensor as shown in figure.
If check result is not satisfactory, replace sunload sensor with new one.

Sunload sensor voltage specification

"a" - "b": Approx. 0.38 - 0.42 V

Fig 1: Checking Sunload Sensor Voltage
Courtesy of SUZUKI OF AMERICA CORP.