Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Sienna 2004-2007 Approved SRM 04 05 202xg cisl32
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05-1 166
DIAGNOSTICS - LIGHTING SYSTEM 05BVW-02
DOOR COURTESY SWITCH CIRCUIT
CIRCUIT DESCRIPTION
The Multiplex network body ECU detects the condition of the door courtesy switch assy.
WIRING DIAGRAM
B10 Multiplex Network
Power Back Door ECU Back Door Lock Body ECU
8 11
B-W(*2) B-W(*2) W-B(*2)
FUL P13 BG3 E
3 FSW 4
4 2
G-W(*2) G-W(*2)
CTYO P14 BH1
B11
Back Door Courtesy Switch
Back Door Opener Motor 13 J/C 25
26 10
W-B(*1) G-W(*1) G-W(*1) G-W
BG1 J14 J13 B7 BCTY
5 6
W-B(*2)
J18
22 J/C 6 J/C 14
R-Y R-Y R-Y
J12 J11 B9 DCTY
58 48
J/C
17 5 23
R-Y R-Y
J34 J33 B7 PCTY
18 6 16
R-W R-W
J34 J33 B9 RCTY
Driver Side Junction Block
19
J41 1P LCTY
A J/C 17
A GR
1 1 1 1
D7 D8 S29 S28
BN Door Courtesy Door Courtesy
Door Courtesy Door Courtesy
Switch Front LH Switch Front RH Switch Rear RH Switch Rear LH
*1: w/o Power Back Door
*2: w/ Power Back Door
E68119
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1349
05-1 167
DIAGNOSTICS - LIGHTING SYSTEM
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 to 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)
Driver's door courtesy ON: Driver's door is open
D DOR CTY SW -
SW signal/ON or OFF OFF: Driver's door is closed
Passenger's door
ON: Front passenger's door is open
P DOR CYT SW courtesy SW signal/ -
OFF: Front passenger's door is closed
ON or OFF
Rear slide door courte-
ON: Either right or left rear slide door is open
Rr DOR CTY SW sy SW signal/ON or -
OFF: Both the right and left slide doors are closed
OFF
BACK DOOR:
Measurement Item/
Item Normal Condition Diagnostic Note
Display (Range)
Back door courtesy
ON: Back door is open
COURTESY SW SW signal/ -
OFF: Back door is closed
ON or OFF
OK PROCEED TO NEXT CIRCUIT INSPECTION
SHOWN ON PROBLEM SYMPTOMS TABLE
(See page 05-1 131)
NG
2 INSPECT COURTESY LAMP SWITCH
(a) Inspect each of the courtesy lamp switch continuity (See page 65-4 ).
NG REPLACE COURTESY LAMP SWITCH
OK
3 INSPECT BACK DOOR LOCK ASSY
(a) Inspect the courtesy lamp switch terminal of the back door lock assy (See page 65-4 ).
NG REPLACE BACK DOOR LOCK ASSY
OK
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1350
05-1 168
DIAGNOSTICS - LIGHTING SYSTEM
4 CHECK HARNESS AND CONNECTOR
(a) Disconnect the 1P, B7 and B9 connector from the instrument panel junction block assy.
(b) Check the continuity between each of the terminals of instrument panel junction block assy connector
side and body ground as shown in the chart below.
Standard:
Inspect area Tester connection Specified condition
Front driver door open close B9-14 - Body ground Continuity No continuity
Front passenger door open close B7-23 - Body ground Continuity No continuity
Rear RH slide door open close B9-16 - Body ground Continuity No continuity
Rear LH slide door open close 1P-19 - Body ground Continuity No continuity
Instrument Panel Junction Block Assy
Front Side:
1P
E67348
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1351
05-1 169
DIAGNOSTICS - LIGHTING SYSTEM
Instrument Panel Junction Block Assy B7 B9
Back Side:
E67349
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1352
05-1 170
DIAGNOSTICS - LIGHTING SYSTEM
5 INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSY(BACK DOOR
COURTESY LAMP SWITCH CIRCUIT)
(a) Measure voltage between the terminal B7-25 of the multiplex network body ECU and body ground.
Standard:
Tester connection Condition Specified condition
B7-25 - Body ground Back door is open Below 1 V
B7-25 - Body ground Back door is closed 10 to 14 V
B7
E67349
OK PROCEED TO NEXT CIRCUIT INSPECTION
SHOWN ON PROBLEM SYMPTOMS TABLE
(See page 05-1 131)
NG
6 CONFIRM VEHICLE MODELS
(a) Check the vehicle models.
A: w/o Power back door
B: w/ Power back door
A REPAIR OR REPLACE HARNESS OR
CONNECTOR
B
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1353
05-1 171
DIAGNOSTICS - LIGHTING SYSTEM
7 INSPECT POWER BACK DOOR SYSTEM
(a) Inspect the power back door circuit (See page 05-1749 ).
NG CHECK AND REPLACE POWER BACK DOOR
SYSTEM
OK
REPAIR OR REPLACE HARNESS OR CONNECTOR
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1354
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