Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Sienna 2004-2007 Approved SRM 04 05 20jw820a ciwindow
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DIAGNOSTICS - POWER WINDOW CONTROL SYSTEM (W/ JAM 05-1581
PROTECTION) 05BMH-06
POWER WINDOW CAN BE OPERATED AFTER IGNITION SWITCH
IS TURNED OFF EVEN IF OPERATIVE CONDITIONS ARE NOT
FULFILLED
CIRCUIT DESCRIPTION
The multiplex network body ECU controls power supplied to the power window master switch and each regu-
lator switch continuously for 45 seconds after the ignition switch is turned OFF unless the front doors have
been opened, so that the power window can be operated during this period (See page 70-9 ). However, if
either front door is opened or if a signal from any of the front door courtesy lamp switches is input to the ECU
during 45 seconds, or if 45 seconds pass with nothing being done, the multiplex network body ECU will stop
supplying power, thus disabling power window operation disabled.
WIRING DIAGRAM
Instrument Panel J/B Assy
Multiplex Network
To 20 Body ECU
Power Window Regulator Master Switch Assy 1K
To 7 PWR
Power Window Regulator Switch Assy (RH) 1J
2 1
To 1
Power Window Regulator Switch Assy (Rear LH) 1P
PWR Relay
1
From 5 3
1A
Battery
W-B 16 2 1 18
1L PWS
5
GND1
W-B 17 4
1K GND2
D7
Front Door Courtesy Lamp Switch
J18
(Driver Side)
J/C J/C 14
1 R-Y 22 6
R-Y R-Y
J12 J11 B9 DCTY
58 48
D8
Front Door Courtesy Lamp Switch
(Passenger Side) J/C
17 5 23
1 R-Y R-Y
J34 J33 B7 PCTY
IE
B61928
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1764
05-1582 DIAGNOSTICS - POWER WINDOW CONTROL SYSTEM (W/ JAM
PROTECTION)
INSPECTION PROCEDURE
1 CHECK OPERATION FUNCTION AFTER IGNITION SWITCH IS TURNED OFF
(a) If the power window operates even after either front door is opened within 45 seconds after the ignition
switch is turned OFF, proceed to A.
(b) If the power window operates even after 45 seconds have passed after the ignition switch is turned
OFF, proceed to B.
B REPLACE MULTIPLEX NETWORK BODY ECU
A
2 READ VALUE OF HAND-HELD TESTER
(a) Using the hand-held tester, check that the data list for proper functioning of the front door courtesy
switches.
Standard (Multiplex network body ECU):
Item Measurement Item/Display (Range) Normal Condition Diagnostic Note
Driver side door courtesy switch signal/ON ON: Driver side door is open
D DOR CTY SW -
or OFF OFF: Driver side door is closed
Passenger side door courtesy switch signal/ ON: Passenger side door is open
P DOR CTY SW -
ON or OFF OFF: Passenger side door is closed
OK REPLACE MULTIPLEX NETWORK BODY ECU
NG
3 INSPECT FRONT DOOR COURTESY LAMP SWITCH ASSY
Front Door (a) Remove the courtesy lamp switch.
Courtesy Lamp Free (b) Check the switch resistance.
Switch Standard:
Pushed
Terminal No. Condition Specified Condition
Switch pushed 10 k or higher
1 - Body ground
Switch free Below 1
Body Ground
NG REPLACE FRONT DOOR COURTESY LAMP
B58556 SWITCH ASSY
OK
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1765
DIAGNOSTICS - POWER WINDOW CONTROL SYSTEM (W/ JAM 05-1583
PROTECTION)
4 CHECK WIRE HARNESS (FRONT DOOR COURTESY LAMP SWITCH ASSY - MUL-
TIPLEX NETWORK BODY ECU)
(a) Disconnect the D7 or D8 lamp switch connector.
Wire Harness Side
(b) Disconnect the B7 or B9 ECU connector.
D7*1 or D8*2
(c) Check the resistance between the wire harness side con-
Courtesy Lamp Switch
nectors.
Standard:
Terminal No. Specified Condition
D7-1 - B9-14 (DCTY) Below 1
B7 D8-1 - B7-23 (PCTY) Below 1
Multiplex Network Body ECU
B9
Multiplex Network Body ECU
*1: Driver Side
NG REPAIR OR REPLACE HARNESS AND
*2: Passenger Side B68694 CONNECTOR
OK
REPLACE MULTIPLEX NETWORK BODY ECU
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1766
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