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Home >> Lexus >> 1997 >> SC 400 V8-4.0L (1UZ-FE) >> Repair and Diagnosis >> Body and Frame >> Locks >> Keyless Entry >> Testing and Inspection >> Key Unlock Warning Switch Circuit
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Key Unlock Warning Switch Circuit

CIRCUIT DESCRIPTION
When the key is inserted in the ignition key cylinder the key unlock warning switch comes ON and when the key is not inserted switch is OFF.

When the key unlock warning switch is ON, the ECU operates the key confinement prevention function.





WIRING DIAGRAM





INSPECTION PROCEDURE