Rear End Door Window/Back Window Defogger Switch Inspection

1. Rear end door window defogger switch is built in HVAC control unit.

   Remove HVAC control module (unit) referring to HVAC CONTROL UNIT REMOVAL AND INSTALLATION or AUTOMATIC TYPE .

2. Check that there is continuity between terminal (1) and terminal (2) of HVAC control module (unit) when rear end door window defogger switch is at ON position. (Rear end door window defogger switch is kept in push.)
3. Check that there is no continuity between terminal (1) and terminal (2) of HVAC control module (unit) when rear end door window defogger switch is at OFF position.

If check result does not meet the above conditions, replace HVAC control module (unit).

Fig 1: Inspecting Rear End Door Window Defogger Switch

Courtesy of SUZUKI OF AMERICA CORP.