Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Sienna 1998-2003 Approved FSM 05 bcsy cikeyunl
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DI-673
DIAGNOSTICS - BODY CONTROL SYSTEM
DI6LO-03
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
Body ECU (Integration Relay)
Driver Side
J/B No. 1
J6 J/C
5
L-B L-B
1M KSW
D D 5
U1
Key Unlock
Warning Switch J3 J/C
W-B W-B
1 2 B B
ED
I18888
2001 SIENNA (RM787U)
Author : Date : 827
DI-674
DIAGNOSTICS - BODY CONTROL SYSTEM
INSPECTION PROCEDURE
1 Check key unlock warning switch (See page BE-15 ).
NG Replace the key unlock warning switch.
OK
2 Check wireharness and connector between key unlock warning switch and Body
ECU (See page IN-31 ).
NG Repair or replace wireharness or connector.
OK
Proceed to next circuit inspection shown on
problem symptoms table (See page
DI-636 ).
2001 SIENNA (RM787U)
Author : Date : 828
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