Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Sienna 2004-2007 Approved SRM 04 05 2021t ciwipers
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05-2044
DIAGNOSTICS - DYNAMIC LASER CRUISE CONTROL SYSTEM 05BEO-02
WIPER SIGNAL CIRCUIT
CIRCUIT DESCRIPTION
When the distance control ECU detects the wiper in operation, the dynamic laser cruise control system will
be canceled.
HINT:
When the wiper is the LO or HI mode, the dynamic laser cruise control is automatically cancelled and goes
into standby mode (In INT (intermittent operation) mode, the laser cruise control is not cancelled).
WIRING DIAGRAM
C12
J15
Combination Switch Distance Control ECU
J/C
J/C
31 14 2
L-O L-O L-O
+2 J4 J3 D2 WIP2
8 A A
Front
Wiper F3
Relay Front Washer Motor
From 3
L L-Y L-Y
WSH Fuse M D2 WASH
1 2 B B
I34888
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 2227
05-2045
DIAGNOSTICS - DYNAMIC LASER CRUISE CONTROL SYSTEM
INSPECTION PROCEDURE
1 INSPECT WIPER AND WASHER SYSTEM
Standard:
Wiper function is correct.
NG GO TO WIPER AND WASHER SYSTEM (See
page 66-2 )
OK
2 CHECK WIRE HARNESS AND CONNECTOR(DISTANCE CONTROL ECU - FRONT
WASHER MOTOR)
(a) Check for an open or short circuit in harness and connector between the distance control ECU and
the front washer motor (See page 01-37 ).
NG REPAIR OR REPLACE WIRE HARNESS OR
CONNECTOR
OK
3 CHECK WIRE HARNESS AND CONNECTOR(DISTANCE CONTROL ECU -
COMBINATION SWITCH)
(a) Check for an open or short circuit in harness and connector between the distance control ECU and
the combination switch (See page 01-37 ).
NG REPAIR OR REPLACE WIRE HARNESS OR
CONNECTOR
OK
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 2228
05-2046
DIAGNOSTICS - DYNAMIC LASER CRUISE CONTROL SYSTEM
4 INSPECT DISTANCE CONTROL ECU ASSY
WASH
(a) Remove the distance control ECU with connector.
WIP2 (b) Turn the ignition switch ON.
D2
(c) Measure the voltage between terminal WIP2 (D2-2) and
WASH (D2-3) of distance control ECU, when combina-
tion switch is operated.
Standard:
Switch Position Specified condition
Wiper Switch OFF Below 1 V
I34900 Wiper Switch HI 10 to 14 V
Washer Switch OFF 10 to 14 V
Washer Switch ON Below 1 V
NG REPLACE DISTANCE CONTROL ECU ASSY
(See page 82-1 )
OK
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE
(See page 05-2008 )
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 2229
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