Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Sienna 2004-2007 Approved SRM 04 05 202xg cilt93
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05-1 137
DIAGNOSTICS - LIGHTING SYSTEM 05BVO-01
AUTOMATIC LIGHT CONTROL SENSOR CIRCUIT
CIRCUIT DESCRIPTION
The Multiplex network body ECU receives the signal from the automatic light control sensor.
HINT:
DTC code is output when malfunction of automatic light control sensor or open or short of automatic light
control sensor circuit occurs.
WIRING DIAGRAM
A25
A/C Solar Sensor Multiplex Network
Automatic Light Control Sensor J20 Body ECU
J/C
6
R R
CLTB B6 CLTB
6 110 100
4
LG LG
CLTE B6 CLTE
3 104 94
5
G-B G-B
CLTS B6 CLTS
5 103 93
Y-B
TSR
2 To
A/C Control Assembly
Y-R
TSL
1
E68123
INSPECTION PROCEDURE
HINT:
Start the inspection from step 1 in the case of using the hand-held tester, and start from step 2 in the case
of not using the hand-held tester.
1 READ VALUE OF HAND-HELD TESTER
(a) Connect the hand-held tester to DLC3.
(b) Turn the ignition switch ON and push the hand-held tester main switch ON.
(c) Select the items below in the DATA LIST, and read the displays on the hand-held tester.
BODY NO.1:
Measurement Item/
Item Normal Condition Diagnostic Note
Display (Range)
Light control type/
LIGHT CTRL TYPE Customized sign can be displayed. -
CRNT or OLD
OK PROCEED TO NEXT CIRCUIT INSPECTION
SHOWN ON PROBLEM SYMPTOMS TABLE
(See page 05-1 131)
NG
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1320
05-1 138
DIAGNOSTICS - LIGHTING SYSTEM
2 CHECK HARNESS AND CONNECTOR(MULTIPLEX NETWORK BODY ECU -
AUTOMATIC LIGHT CONTROL SENSOR)
(a) Check for open or short circuit in the harness and the connector between the terminal 6 of the automat-
ic light control sensor and the terminal B6-6 of the multiplex network body ECU (See page 01-37 ).
(b) Check for open or short circuit in the harness and the connector between the terminal 3 of the automat-
ic light control sensor and the terminal B6-4 of the multiplex network body ECU (See page 01-37 ).
(c) Check for open or short circuit in the harness and the connector between the terminal 5 of the automat-
ic light control sensor and the terminal B6-5 of the multiplex network body ECU (See page 01-37 ).
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
3 INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSY
(a) Measure voltage between the terminal B6-4 and the terminal B6-6 of the multiplex network body ECU
in the instrument panel junction block assy.
Standard:
Tester connection Condition Specified voltage
B6-4 - B6-6 Ignition switch OFF ON 10 to 14 V
B6
E67349
NG REPLACE AUTOMATIC LIGHT CONTROL
SENSOR
OK
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE
(See page 05-1 131)
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1321
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