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Test G: Key Unlock Warning Switch Circuit

When the key is inserted in the ignition key cylinder the key unlock warning switch comes ON, and when the key is not inserted the switch is OFF. When the key unlock warning switch is ON, the ECU operates the key confinement prevention function.

Fig 1: Key Unlock Warning Switch Circuit Diagnostic
G00166980Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 2: Key Unlock Warning Switch Circuit Test
G00166981Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NOTE: For RKE trouble shooting, see Figure.