Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Sienna 1998-2003 Approved FSM 05 theft citailre
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DI-545
DIAGNOSTICS - THEFT DETERRENT SYSTEM
DI06Y-10
Taillight Control Relay Circuit
CIRCUIT DESCRIPTION
When the theft deterrent system is activated, it causes the Tr in the ECU to switch ON and OFF at intervals.
This switches the taillight control relay ON and OFF, thus flashing the taillights (See the wiring diagram be-
low).
In this condition, if any of the following operations is done, the Tr in the ECU goes OFF and the taillight control
relay switches OFF, thus stopping the taillights flashing:
(1) Unlock the front LH or RH door with the key.
(2) Turn the ignition switch to ACC or ON position.
(3) Unlock the doors by the wireless door lock control system.
(4) Wait for approximately 60 seconds.
(5) Push the panic switch of the wireless door lock control system.
WIRING DIAGRAM
Driver Side J/B No.1 Theft Deterrent ECU
TAILLIGHT Relay J5
4 J/C 17 11
W-R 1 2 6
W-R 1B 1C G-R G-R IG2 G-R T4 TAIL
B B
F9 1 2
W-R 1B
INP 5 3
FL BLOCK TAIL
ALT
F8 1
B-L
FL MAIN
Battery
I19514
2001 SIENNA (RM787U)
Author : Date : 699
DI-546
DIAGNOSTICS - THEFT DETERRENT SYSTEM
INSPECTION PROCEDURE
HINT:
The flow chart below is based on the premise that the taillights light up normally whenever the light control
switch is operated. If taillight operation is not normal when the light control switch is operated, proceed to
troubleshooting on page BE-2 .
1 Check voltage between terminal TAIL of theft deterrent ECU connector and body
ground.
PREPARATION:
Disconnect the theft deterrent ECU connector.
CHECK:
Measure voltage between terminal TAIL of theft deterrent ECU
connector and body ground.
OK:
Voltage: 10-14V
(+) (-)
TAIL
I01925
NG Check and repair harness and connector be-
tween theft deterrent ECU and taillight control
relay (See page IN-31 ).
OK
Check and replace theft deterrent ECU.
2001 SIENNA (RM787U)
Author : Date : 700
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