Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Sienna 2004-2007 Approved SRM 04 05 21q2h73z b013674
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05-877
DIAGNOSTICS - SUPPLEMENTAL RESTRAINT SYSTEM 0525Y-06
DTC B0136/74 OPEN IN P/T SQUIB (LH) CIRCUIT
CIRCUIT DESCRIPTION
The P/T squib LH circuit consists of the airbag sensor assy center and the front seat outer belt assy LH.
This circuit instructs the SRS to deploy when deployment conditions are met.
DTC B0136/74 is recorded when an open circuit is detected in the P/T squib LH circuit.
DTC No. DTC Detecting Condition Trouble Area
S The airbag sensor assy center receives an open circuit
S Front seat outer belt assy LH (P/T squib LH)
signal in the P/T squib LH circuit for 2 seconds.
B0136/74 S Airbag sensor assy center
S P/T squib LH malfunction
S Floor wire
S Airbag sensor assy center malfunction
WIRING DIAGRAM
See page 05-873 .
INSPECTION PROCEDURE
1 CHECK FLOOR WIRE(P/T SQUIB LH CIRCUIT)
Floor Wire (a) Turn the ignition switch to the LOCK position.
P/T Squib LH
(b) Disconnect the negative (-) terminal cable from the bat-
A Airbag tery, and wait for at least 90 seconds.
D C B Sensor (c) Disconnect the connectors from the airbag sensor assy
Assy center and the front seat outer belt assy LH.
Center (d) Measure the resistance according to the value(s) in the
P44 table below.
Standard:
PL+ PL- Tester connection Condition Specified condition
P44-1 (PL+) -
Always Below 1
P44-2 (PL-)
H01016
H43108 H43139 NG REPAIR OR REPLACE FLOOR WIRE
OK
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1060
05-878
DIAGNOSTICS - SUPPLEMENTAL RESTRAINT SYSTEM
2 CHECK AIR BAG SENSOR ASSY CENTER
Floor Wire (a) Connect the connector to the airbag sensor assy center.
P/T Squib LH (b) Using a service wire, connect P44-1 (PL+) and P44-2
Airbag (PL-) of connector "C".
D C Sensor NOTICE:
Assy S Twist the end of the service wire in order to insert it
P44 Center into the connector.
S Do not forcibly insert the twisted service wire into the
PL+ PL- terminals of the connector when connecting.
(c) Connect the negative (-) terminal cable to the battery,
Service Wire and wait for at least 2 seconds.
(d) Turn the ignition switch to the ON position, and wait for at
least 60 seconds.
DLC3 (e) Clear the DTCs stored in memory (see page 05-777 ).
DTC B0136/74
(f) Turn the ignition switch to the LOCK position.
(g) Turn the ignition switch to the ON position, and wait for at
least 60 seconds.
CG TC (h) Check the DTCs (see page 05-777 ).
H01017
OK:
H43107
H10600 H01087 H43140 DTC B0136/74 is not output.
HINT:
Codes other than code B0136/74 may be output at this time, but
they are not related to this check.
NG REPLACE AIR BAG SENSOR ASSY CENTER
(SEE PAGE 60-56 )
OK
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1061
05-879
DIAGNOSTICS - SUPPLEMENTAL RESTRAINT SYSTEM
3 CHECK FRONT SEAT OUTER BELT ASSY LH(P/T SQUIB LH)
(a) Turn the ignition switch to the LOCK position.
P/T Squib LH
(b) Disconnect the negative (-) terminal cable from the bat-
Airbag tery, and wait for at least 90 seconds.
DC Sensor
(c) Disconnect the service wire from connector "C".
Assy
(d) Connect the connector to the front seat outer belt assy
Center
LH.
(e) Connect the negative (-) terminal cable to the battery,
and wait for at least 2 seconds.
DLC3 DTC B0136/74 (f) Turn the ignition switch to the ON position, and wait for at
least 60 seconds.
(g) Clear the DTCs stored in memory (see page 05-777 ).
(h) Turn the ignition switch to the LOCK position.
CG TC (i) Turn the ignition switch to the ON position, and wait for at
H01018
H10600 H01087 H40060 least 60 seconds.
(j) Check the DTCs (see page 05-777 ).
OK:
DTC B0136/74 is not output.
HINT:
Codes other than code B0136/74 may be output at this time, but
they are not related to this check.
NG REPLACE FRONT SEAT OUTER BELT ASSY LH
(SEE PAGE 61-7 )
OK
USE SIMULATION METHOD TO CHECK (SEE PAGE 05-770 )
HINT:
S Perform the simulation method by selecting the check mode with the hand-held tester (see page
05-780 ).
S After selecting the check mode, perform the simulation method by wiggling each connector of the air-
bag system or driving the vehicle on a city or rough road (see page 05-780 ).
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1062
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