Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Sienna 2004-2007 Approved SRM 04 05 21q2h73z b010553
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05-812
DIAGNOSTICS - SUPPLEMENTAL RESTRAINT SYSTEM 0525H-07
DTC B0105/53 SHORT IN P SQUIB CIRCUIT
CIRCUIT DESCRIPTION
The P squib circuit consists of the airbag sensor assy center and the front passenger airbag assy.
The circuit instructs the SRS to deploy when deployment conditions are met.
DTC B0105/53 is recorded when a short circuit is detected in the P squib circuit.
DTC No. DTC Detecting Condition Trouble Area
S The airbag sensor assy center receives a line short circuit
S Front passenger airbag assy (P squib)
signal 5 times in the P squib circuit during primary check.
B0105/53 S Airbag sensor assy center
S P squib malfunction
S Instrument panel wire
S Airbag sensor assy center malfunction
WIRING DIAGRAM
Airbag Sensor Assy Center
A23
P Squib
Y-R 10
A21 P+
1
Y-G 11
A21 P-
2
H01454
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 995
05-813
DIAGNOSTICS - SUPPLEMENTAL RESTRAINT SYSTEM
INSPECTION PROCEDURE
1 CHECK INSTRUMENT PANEL WIRE(P SQUIB CIRCUIT)
(a) Turn the ignition switch to the LOCK position.
Instrument Panel Wire (b) Disconnect the negative (-) terminal cable from the bat-
P Squib Airbag tery, and wait for at least 90 seconds.
Sensor (c) Disconnect the connectors from the airbag sensor assy
A
Assy center and the front passenger airbag assy.
D C B Center (d) Release the activation prevention mechanism built into
connector "B" (see page 05-770 ).
A23
(e) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester connection Condition Specified condition
P+ A23-1 (P+) -
Always 1 M or Higher
A23-2 (P-)
R14286 P-
H41424 H41932 NG REPAIR OR REPLACE INSTRUMENT PANEL
WIRE
OK
2 CHECK AIR BAG SENSOR ASSY CENTER
(a) Connect the connector to the airbag sensor assy center.
(b) Connect the negative (-) terminal cable to the battery,
P Squib Airbag and wait for at least 2 seconds.
Sensor (c) Turn the ignition switch to the ON position, and wait for at
Assy least 60 seconds.
D C Center (d) Clear the DTCs stored in memory (see page 05-777 ).
(e) Turn the ignition switch to the LOCK position.
(f) Turn the ignition switch to the ON position, and wait for at
DLC3 DTC B0105/53
least 60 seconds.
(g) Check the DTCs (see page 05-777 ).
OK:
DTC B0105/53 is not output.
CG
TC HINT:
H01023
H10600 H01077 H42107 Codes other than code B0105/53 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 : 996
05-814
DIAGNOSTICS - SUPPLEMENTAL RESTRAINT SYSTEM
3 CHECK FRONT PASSENGER AIRBAG ASSY(P SQUIB)
(a) Turn the ignition switch to the LOCK position.
(b) Disconnect the negative (-) terminal cable from the bat-
Airbag tery, and wait for at least 90 seconds.
P Squib
Sensor (c) Connect the connector to the front passenger airbag
Assy assy.
DC Center (d) Connect the negative (-) terminal cable to the battery,
and wait for at least 2 seconds.
(e) Turn the ignition switch to the ON position, and wait for at
DLC3
DTC B0105/53 least 60 seconds.
(f) Clear the DTCs stored in memory (see page 05-777 ).
(g) Turn the ignition switch to the LOCK position.
(h) Turn the ignition switch to the ON position, and wait for at
CG
TC least 60 seconds.
H01024
H10600 H01077 H40041 (i) Check the DTCs (see page 05-777 ).
OK:
DTC B0105/53 is not output.
HINT:
Codes other than code B0105/53 may be output at this time, but
they are not related to this check.
NG REPLACE FRONT PASSENGER AIRBAG ASSY
(SEE PAGE 60-31 )
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 : 997
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