Mode Control Switch

Check if continuity exists between each pair of terminals listed below when mode control button is pressed.
Mode control switch specification

Fig 1: Heater Mode Control Switch Chart
Courtesy of SUZUKI OF AMERICA CORP.
With battery voltage (+) connected to terminal "I" and (-) to terminal "F", press each mode control button and check if indicator lamp (2) lights.
With battery voltage (+) connected to terminal "A" and (-) to terminal "H", check if illumination lamp (2) lights.

Fig 2: Identifying Heater Mode Control Switch Terminals
Courtesy of SUZUKI OF AMERICA CORP.