Outside Air Temperature Sensor Inspection

Remove front bumper .
Disconnect outside air temperature sensor connector (1).
Remove outside air temperature sensor from 4WD air pump assembly bracket (2) (H25 engine model) or front bumper member (3) (H27 engine model).

Fig 1: Removing Outside Air Temperature Sensor From 4WD Air Pump Assembly Bracket
Courtesy of SUZUKI OF AMERICA CORP.
Immerse temperature sensing part of outside air temperature sensor (1) in ice water and measure resistance between sensor terminals while heating water gradually.

Fig 2: Measuring Resistance Between Sensor Terminals
Courtesy of SUZUKI OF AMERICA CORP.