Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Sienna 2004-2007 Approved SRM 04 05 21q2h73z b118219a
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05-986
DIAGNOSTICS - SUPPLEMENTAL RESTRAINT SYSTEM 05IWF-03
DTC B1182/19 SHORT IN D SQUIB (DUAL STAGE - 2ND
STEP) CIRCUIT (TO GROUND)
CIRCUIT DESCRIPTION
The D squib (Dual stage - 2nd step) circuit consists of the airbag sensor assy center, the spiral cable sub-
assy and the horn button assy.
The circuit instructs the SRS to deploy when deployment conditions are met.
DTC B1182/19 is recorded when a short to ground is detected in the D squib (Dual stage - 2nd step) circuit.
DTC No. DTC Detecting Condition Trouble Area
S The airbag sensor assy center receives a short circuit to
ground signal in the D squib (Dual stage - 2nd step) cir- S Horn button assy (D squib, Dual stage - 2nd step)
cuit for 0.5 seconds. S Spiral cable sub-assy
B1182/19
S D squib (Dual stage - 2nd step) malfunction S Airbag sensor assy center
S Spiral cable sub-assy malfunction S Instrument panel wire
S Airbag sensor assy center malfunction
WIRING DIAGRAM
See page 05-977 .
INSPECTION PROCEDURE
1 CHECK D SQUIB CIRCUIT(DUAL STAGE - 2ND STEP, AIRBAG SENSOR ASSY
CENTER - HORN BUTTON ASSY)
(a) Turn the ignition switch to the LOCK position.
D Squib (b) Disconnect the negative (-) terminal cable from the bat-
(Dual stage tery, and wait for at least 90 seconds.
Airbag
- 2nd step) Spiral
Sensor (c) Disconnect the connectors from the airbag sensor assy
Cable A center and the horn button assy.
Sub-assy Assy
F E DC B (d) Measure the resistance according to the value(s) in the
Center
table below.
Standard:
D2+ D2-
Tester connection Condition Specified condition
D2+ - Body ground Always 1 M or Higher
D2- - Body ground Always 1 M or Higher
Color: Black
H41475 H43070
NG Go to step 4
OK
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1169
05-987
DIAGNOSTICS - SUPPLEMENTAL RESTRAINT SYSTEM
2 CHECK AIR BAG SENSOR ASSY CENTER
(a) Connect the connector to the airbag sensor assy center.
D Squib
(Dual stage
(b) Using a service wire, connect D2+ and D2- of connector
- 2nd step)
Airbag "E".
Spiral
Sensor NOTICE:
Cable
Sub-assy Assy S Twist the end of the service wire in order to insert it
FE DC Center
into the connector.
S Do not forcibly insert the twisted service wire into the
D2+ D2- 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
Color: Black
least 60 seconds.
DLC3 DTC B1182/19 (e) Clear the DTCs stored in memory (see page 05-777 ).
(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 ).
H01002 OK:
C89252
H10600 C91338 H42141 DTC B1182/19 is not output.
HINT:
Codes other than code B1182/19 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 : 1170
05-988
DIAGNOSTICS - SUPPLEMENTAL RESTRAINT SYSTEM
3 CHECK HORN BUTTON ASSY(D SQUIB, DUAL STAGE - 2ND STEP)
(a) Turn the ignition switch to the LOCK position.
D Squib
(b) Disconnect the negative (-) terminal cable from the bat-
(Dual stage
Airbag tery, and wait for at least 90 seconds.
- 2nd step) Spiral
Sensor (c) Disconnect the service wire from connector "E".
Cable
Sub-assy
Assy (d) Connect the connectors to the horn button assy.
FE DC Center
(e) Connect the negative (-) terminal cable to the battery,
and wait for at least 2 seconds.
(f) Turn the ignition switch to the ON position, and wait for at
DLC3 DTC B1182/19 least 60 seconds.
(g) Clear the DTCs stored in memory (see page 05-777 ).
(h) Turn the ignition switch to the LOCK position.
(i) Turn the ignition switch to the ON position, and wait for at
CG TC
least 60 seconds.
H01003
H10600 C89253 H42142 (j) Check the DTCs (see page 05-777 ).
OK:
DTC B1182/19 is not output.
HINT:
Codes other than code B1182/19 may be output at this time, but
they are not related to this check.
NG REPLACE HORN BUTTON ASSY
(SEE PAGE 60-19 )
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 : 1171
05-989
DIAGNOSTICS - SUPPLEMENTAL RESTRAINT SYSTEM
4 CHECK INSTRUMENT PANEL WIRE
D Squib Instrument Panel Wire (a) Disconnect the instrument panel wire connector from the
(Dual stage spiral cable sub-assy.
Airbag
- 2nd step) Spiral
Sensor (b) Measure the resistance according to the value(s) in the
Cable A
Sub-assy
Assy table below.
F E D C B Center Standard:
Tester connection Condition Specified condition
A24 A24-4 (D2+) -
Always 1 M or Higher
Body ground
A24-3 (D2-) -
Always 1 M or Higher
Body ground
D2+
D2-
H41440 H43066 NG REPAIR OR REPLACE INSTRUMENT PANEL
WIRE
OK
5 CHECK SPIRAL CABLE SUB-ASSY
(a) Measure the resistance according to the value(s) in the
D Squib
table below.
(Dual stage Standard:
Airbag
- 2nd step) Spiral Tester connection Condition Specified condition
Sensor
Cable A D2+ - Body ground Always 1 M or Higher
Sub-assy Assy
F E D C B D2- - Body ground Always 1 M or Higher
Center
D2+ D2-
Color: Black
H41479 H43071 NG REPAIR SPIRAL CABLE SUB-ASSY
(SEE PAGE 60-28 )
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 : 1172
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