Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Sienna 2004-2007 Approved SRM 04 05 21q2h73z b114937
<< Back | HomeMost service manuals and schematics are PDF files, so You will need Adobre Acrobat Reader to view : Acrobat Download Some of the files are DjVu format. Readers and resources available here : DjVu Resources
For the compressed files, most common are zip and rar. Please, extract files with Your favorite compression software ( WinZip, WinRAR ... ) before viewing. If a document has multiple parts, You should download all, before extracting.
Good luck. Repair on Your own risk. Make sure You know what You are doing.
Image preview - the first page of the document
>> Download b114937 documenatation <<
Text preview - extract from the document
05-910
DIAGNOSTICS - SUPPLEMENTAL RESTRAINT SYSTEM 05NSZ-01
DTC B1149/37 FRONT AIRBAG SENSOR (LH)
MALFUNCTION
CIRCUIT DESCRIPTION
The airbag sensor front LH circuit consists of the diagnostic circuit and the frontal deceleration sensor, etc.
If the airbag sensor assy center receives signals from the frontal deceleration sensor, it judges whether or
not the SRS should be activated.
DTC B1149/37 is recorded when a malfunction is detected in the airbag sensor front LH circuit.
DTC No. DTC Detecting Condition Trouble Area
S The airbag sensor assy center receives an open circuit S Airbag sensor front LH
signal in the front airbag sensor LH circuit for 2 seconds. S Airbag sensor assy center
B1149/37
S Airbag sensor front LH malfunction S Instrument panel wire
S Airbag sensor assy center malfunction S Engine room main wire
WIRING DIAGRAM
A7
Airbag Sensor Front LH Airbag Sensor Assy Center
2 15
W-R W-R
+SL IC1 A21 +SL
2
1 26
BR BR
-SL IC1 A21 -SL
1
H02750
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1093
05-91 1
DIAGNOSTICS - SUPPLEMENTAL RESTRAINT SYSTEM
INSPECTION PROCEDURE
1 CHECK DTC
(a) Turn the ignition switch to the ON position, and wait for at
Airbag least 60 seconds.
Airbag (b) Clear the DTCs stored in memory (see page 05-777 ).
Sensor
Sensor
Assy (c) Turn the ignition switch to the LOCK position.
Front LH
Center (d) Turn the ignition switch to the ON position, and wait for at
least 60 seconds.
(e) Check the DTCs (see page 05-777 ).
DLC3 OK:
DTC B1149/37
DTC B1149/37 is not output.
HINT:
Codes other than code B1149/37 may be output at this time, but
CG TC they are not related to this check.
H02757
H10600 H16835 H42119
NG Go to step 2
OK
USE SIMULATION METHOD TO CHECK (SEE PAGE 05-770 )
2 CHECK CONNECTION OF CONNECTORS
(a) Turn the ignition switch to the LOCK position.
(b) Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
(c) Check that the connector is properly connected to the airbag sensor assy center and the airbag sensor
front LH.
OK:
The connectors are connected.
NG CONNECT CONNECTORS, THEN GO TO STEP
1
OK
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1094
05-912
DIAGNOSTICS - SUPPLEMENTAL RESTRAINT SYSTEM
3 CHECK FRONT AIRBAG SENSOR (LH) CIRCUIT (OPEN)
(a) Disconnect the connectors from the airbag sensor assy
Airbag center and the airbag sensor front LH.
Sensor (b) Using a service wire, connect A7-2 (+SL) and A7-1 (-SL)
F A
Assy of connector "E".
E DC B
Center NOTICE:
Airbag Sensor
Front LH Do not forcibly insert a service wire into the terminals of the
A21 connector when connecting.
-SL A7 +SL +SL
(c) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester connection Condition Specified condition
A21-15 (+SL) -
Always Below 1
Service Wire A21-26 (-SL)
-SL
H03353
H08016 C81408 H41800 NG Go to step 5
OK
4 CHECK AIR BAG SENSOR FRONT LH
(a) Connect the connector to the airbag sensor assy center.
Airbag Airbag
Sensor
(b) Interchange the airbag sensor front RH with LH and con-
Sensor
Front Assy nect the connectors to them.
RH DC Center (c) Connect the negative (-) terminal cable to the battery,
and wait for at least 2 seconds.
(d) Turn the ignition switch to the ON position, and wait for at
least 60 seconds.
DTC B1148/36
(e) Clear the DTCs stored in memory (see page 05-777 ).
DLC3
(f) Turn the ignition switch to the LOCK position.
(g) Turn the ignition switch to the ON position, and wait for at
DTC B1149/37 least 60 seconds.
(h) Check the DTCs (see page 05-777 ).
CG TC
Result:
H02757
H10600 H16834
H16835 H42120 NG: A DTC B1149/37 is output.
NG: B DTC B1148/36 is output.
DTC B1148/36 and B1149/37 are not
OK
output.
NG:A REPLACE AIR BAG SENSOR FRONT LH
(SEE PAGE 60-58 )
NG:B REPLACE AIR BAG SENSOR ASSY CENTER
(SEE PAGE 60-56 )
OK
USE SIMULATION METHOD TO CHECK (SEE PAGE 05-770 )
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1095
05-913
DIAGNOSTICS - SUPPLEMENTAL RESTRAINT SYSTEM
5 CHECK ENGINE ROOM MAIN WIRE(OPEN)
Engine Room (a) Disconnect the engine room main wire connector from the
Instrument Panel Wire
Main Wire instrument panel wire.
Airbag
HINT:
Sensor
F A The service wire has already been inserted into connector "E".
E Assy
D C B (b) Measure the resistance according to the value(s) in the
Center
Airbag Sensor table below.
Front LH IC1 Standard:
A7
-SL +SL Tester connection Condition Specified condition
IC1-2 (+SL) -
Always Below 1
IC1-1 (-SL)
+SL -SL
H03352
H42827 Service Wire H45962 NG REPAIR OR REPLACE ENGINE ROOM MAIN
WIRE
OK
REPAIR OR REPLACE INSTRUMENT PANEL WIRE
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1096
◦ Jabse Service Manual Search 2026 ◦ Jabse Pravopis ◦ onTap.bg ◦ Other service manual resources online : Fixya ◦ eServiceinfo