Step 3 - Inspect Door Courtesy Switch Continuity

WARNING: This page is about a different car, the 2002 Toyota Prius. However, it is still accessible from the selected car via links, so may be relevant.

Check that continuity exists between terminals and the switch body with the switch ON (Switch pin released: opened door).

Fig 1: Testing Door Courtesy Switch
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Check that no continuity exists between terminals and the switch body with the switch OFF (Switch pin pushed in: closed door).

If operation is not as specified, replace the switch.