Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Sienna 2004-2007 Approved SRM 04 05 202xg cib1244
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05-1 134
DIAGNOSTICS - LIGHTING SYSTEM 05BVN-01
DTC B1244 LIGHT SENSOR CIRCUIT MALFUNCTION
CIRCUIT DESCRIPTION
This DTC is output when failure in the light sensor circuit is detected.
DTC No. DTC Detecting Condition Trouble Area
S Automatic light control sensor
S Malfunction of automatic light control sensor
B1244 SHHarness or connector
t
S Open or short of automatic light control sensor circuit
S Multiplex network body ECU
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
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 REPLACE INSTRUMENT PANEL JUNCTION
BLOCK ASSY
NG
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1317
05-1 135
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 AUTOMATIC LIGHT CONTROL SENSOR
(a) Measure voltage between the terminal 3 and the terminal 5 of the automatic light control sensor.
Standard:
Tester connection Condition Specified voltage
3-5 Ignition switch OFF ON Signal wave form
OK REPLACE INSTRUMENT PANEL JUNCTION
BLOCK ASSY
NG
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1318
05-1 136
DIAGNOSTICS - LIGHTING SYSTEM
4 INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSY
(a) Measure voltage between the terminal B6-6 and the terminal B6-4 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 INSTRUMENT PANEL JUNCTION
BLOCK ASSY
OK
REPLACE AUTOMATIC LIGHT CONTROL SENSOR
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1319
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