Ignition Switch And Key Unlock Warning Switch: Inspection

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

Inspect ignition switch continuity :

Fig 1: Identifying Key Positions & Locating Ignition Switch Terminals
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Fig 2: Key Position Specifications Chart
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If continuity is not as specified, replace the switch.
Inspect key unlock warning switch continuity :

Fig 3: Identifying Key Unlock Warning Switch Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 4: Key Unlock Warning Switch Specifications Chart
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

If continuity is not as specified, replace the switch.
Inspect IG1 relay continuity :

Fig 5: Identifying IG1 Relay Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 6: IG1 Relay Specifications Chart
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

If continuity is not as specified, replace the switch.