Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Sienna 1998-2003 Approved FSM 05 bcsy citailre
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DI-645
DIAGNOSTICS - BODY CONTROL SYSTEM
DI6LM-03
Taillight relay circuit
CIRCUIT DESCRIPTION
Taillight relay will be "ON" by operating the taillight switch. The transistor which activates the tail light relay
has two sorts: one activates by the tail light switch for fail safe and the other activates by CPU.
WIRING DIAGRAM
Body ECU (In-
Driver Side J/B NO.1 tegration Relay)
Tailligt Relay to Taillight
W-R 2
1B
5 3 J5 (*1) (*2)
4 6 J/C 9 5
W-R G-R G-R
1B 1C I13 I13 TRLY
1 2 B B
1 INP ALT 1 FL MAIN
W-R B-L
F9 F8
Battery
(*1) w/ Door Lock Control
(*2) w/o Door Lock Control
I18645
2001 SIENNA (RM787U)
Author : Date : 799
DI-646
DIAGNOSTICS - BODY CONTROL SYSTEM
INSPECTION PROCEDURE
1 Check taillight relay (See page BE-17 ).
NG Replace the taillight relay.
OK
2 Check wireharness and connector between taillight relay and Body ECU, battery
and taillight relay (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 : 800
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