For 1990-2009 cars

### Intelligent Switching Unit (ISU)

Driver Door Switch: The scan tool displays Released or Applied. When the driver door is open, the scan tool will display Released. When the driver door is closed, the scan tool will display Applied.
Door Switch: The scan tool displays Open or Closed. When a door is opened, the scan tool will display Open. When the door is closed, the scan tool will display Closed.
Tamper Status: The scan tool displays Active or Inactive. When a key tamper switch (door or trunk key cylinder) is locked or normal position, the scan tool will display Inactive. When the switch is unlocked, the scan tool will display Active.
Window Down Motor: The scan tool displays Active or Inactive. When the drivers door window switch is in the DOWN position, the scan tool will display Active. When the switch is in the normal or the UP position, the scan tool will display Inactive.
Window Up Motor: The scan tool displays Active or Inactive. When the drivers door window switch is in the UP position, the scan tool will display Active. When the switch is in the normal or the DOWN position, the scan tool will display Inactive.