Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Sienna 2004-2007 Approved SRM 04 05 21q2h73z b116688
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05-968
DIAGNOSTICS - SUPPLEMENTAL RESTRAINT SYSTEM 05IW3-03
DTC B1166/88 OPEN IN CURTAIN SHIELD SQUIB (LH)
CIRCUIT
CIRCUIT DESCRIPTION
The curtain shield squib LH circuit consists of the airbag sensor assy center and the curtain shield airbag
assy LH.
The circuit instructs the SRS to deploy when deployment conditions are met.
DTC B1166/88 is recorded when an open circuit is detected in the curtain shield squib LH circuit.
DTC No. DTC Detecting Condition Trouble Area
S The airbag sensor assy center receives an open circuit
S Curtain shield airbag assy LH (Curtain shield squib LH)
signal in the curtain shield squib LH circuit for 2 seconds.
B1166/88 S Airbag sensor assy center
S Curtain shield squib LH malfunction
S Floor wire
S Airbag sensor assy center malfunction
WIRING DIAGRAM
See page 05-964 .
INSPECTION PROCEDURE
1 CHECK FLOOR WIRE(CURTAIN SHIELD SQUIB LH CIRCUIT)
(a) Turn the ignition switch to the LOCK position.
Curtain Shield Floor Wire (b) Disconnect the negative (-) terminal cable from the bat-
Squib LH tery, and wait for at least 90 seconds.
A Airbag (c) Disconnect the connectors from the airbag sensor assy
D C B Sensor
center and the curtain shield airbag assy LH.
Assy
(d) Measure the resistance according to the value(s) in the
Center
C14 table below.
Standard:
ICL+ ICL- Tester connection Condition Specified condition
C14-1 (ICL+) -
Always Below 1
C14-2 (ICL-)
H41469 H43069
NG REPAIR OR REPLACE FLOOR WIRE
OK
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1151
05-969
DIAGNOSTICS - SUPPLEMENTAL RESTRAINT SYSTEM
2 CHECK AIR BAG SENSOR ASSY CENTER
(a) Connect the connector to the airbag sensor assy center.
Floor Wire (b) Using a service wire, connect C14-1 (ICL+) and C14-2
Curtain Shield
Squib LH (ICL-) of connector "C".
Airbag NOTICE:
D C Sensor
S Twist the end of the service wire in order to insert it
C14 Assy
into the connector.
ICL+ Center
S Do not forcibly insert the twisted service wire into the
ICL- 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 B1166/88
(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:
C89252
H10600 H11649 H42134 DTC B1166/88 is not output.
HINT:
Codes other than code B1166/88 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 : 1152
05-970
DIAGNOSTICS - SUPPLEMENTAL RESTRAINT SYSTEM
3 CHECK CURTAIN SHIELD AIR BAG ASSY LH(CURTAIN SHIELD SQUIB LH)
(a) Turn the ignition switch to the LOCK position.
Curtain Shield (b) Disconnect the negative (-) terminal cable from the bat-
Squib LH
tery, and wait for at least 90 seconds.
Airbag (c) Disconnect the service wire from connector "C".
DC Sensor (d) Connect the connector to the curtain shield airbag assy
Assy LH.
Center (e) Connect the negative (-) terminal cable to the battery,
DLC3 and wait for at least 2 seconds.
(f) Turn the ignition switch to the ON position, and wait for at
least 60 seconds.
DTC B1166/88
(g) Clear the DTCs stored in memory (see page 05-777 ).
CG TC
(h) Turn the ignition switch to the LOCK position.
(i) Turn the ignition switch to the ON position, and wait for at
H01018
H10600 H11649 H40945 least 60 seconds.
(j) Check the DTCs (see page 05-777 ).
OK:
DTC B1166/88 is not output.
HINT:
Codes other than code B1166/88 may be output at this time, but
they are not related to this check.
NG REPLACE CURTAIN SHIELD AIR BAG ASSY LH
(SEE PAGE 60-40 )
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 : 1153
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