TSRM/MK4 Supra/Repair Manual
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BE/Body Electrical Systems — Key Unlock Warning Switch Circuit, page 160

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p.161
Key Unlock Warning Switch Circuit — MK4 Supra Body Electrical Systems, page 160
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Page text (OCR transcript)
BE–160

BODY ELECTRICAL SYSTEM – THEFT DETERRENT AND DOOR LOCK CONTROL SYSTEM

Key Unlock Warning Switch Circuit

CIRCUIT DESCRIPTION

The key unlock warning switch goes on when the ignition key is inserted in the key cylinder and goes off when the ignition key is removed.
The ECU operates the key confinement prevention function while the key unlock warning switch is on.

WIRING DIAGRAM

T9
Theft Deterrent and
Door Lock ECU

12 V

Key Unlock
Warning Switch

1        12
1J      1K

W-B    1    2    Y         11    Y    KSW
                            IF1         20

W-B

E

N09871