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05-896
DIAGNOSTICS - SUPPLEMENTAL RESTRAINT SYSTEM 05IVK-03
DTC B1140/32 SIDE AIRBAG SENSOR ASSY (RH)
MALFUNCTION
The side airbag sensor assy RH consists of the safing sensor, diagnosis circuit and lateral deceleration sen-
sor, etc.
It receives signals from the lateral deceleration sensor, judges whether or not the SRS must be activated,
and detects a diagnosis system malfunction.
DTC B1140/32 is recorded when a malfunction is detected in the side airbag sensor assy RH.
DTC No. DTC Detecting Condition Trouble Area
S The airbag sensor assy center receives a line short circuit
signal, an open circuit signal, a short circuit to ground sig-
S Side airbag sensor assy RH
nal or a short circuit to B+ signal in the side airbag sensor
B1140/32 S Airbag sensor assy center
assy RH circuit for 2 seconds.
S Floor wire No.2
S Side airbag sensor assy RH malfunction
S Airbag sensor assy center malfunction
WIRING DIAGRAM
S15
Side Airbag Sensor Assy RH Airbag Sensor Assy Center
15
1 GR
A22 ESR
ESR
17
4 P
A22 VUPR
VUPR
16
3 L-Y
A22 SSR+
SSR+
13
2 LG
A22 SSR-
SSR-
H43054
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1079
05-897
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.
Sensor (b) Clear the DTCs stored in memory (see page 05-777 ).
Side Assy (c) Turn the ignition switch to the LOCK position.
Airbag Center (d) Turn the ignition switch to the ON position, and wait for at
Sensor
least 60 seconds.
Assy RH
(e) Check the DTCs (see page 05-777 ).
DLC3 DTC B1140/32 OK:
DTC B1140/32 is not output.
HINT:
Codes other than code B1140/32 may be output at this time, but
they are not related to this check.
CG TC
H01012
H10600 H01065 H40442 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 connectors are properly connected to the airbag sensor assy center and the side airbag
sensor assy RH.
NG CONNECT CONNECTORS, THEN GO TO STEP
1
OK
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1080
05-898
DIAGNOSTICS - SUPPLEMENTAL RESTRAINT SYSTEM
3 CHECK FLOOR WIRE NO.2(OPEN)
Floor Wire No.2 (a) Disconnect the connectors from the airbag sensor assy
Side Airbag Airbag center and the side airbag sensor assy RH.
Sensor Assy RH
Sensor (b) Using SST, connect S15-4 (VUPR) and S15-1 (ESR),
Assy
and connect S15-3 (SSR+) and S15-2 (SSR-) of con-
D A Center
nector "C".
C B
(c) Measure the resistance according to the value(s) in the
S15 A22 ESR table below.
ESR VUPR SSR- Standard:
SSR+
Tester connection Condition Specified condition
A22-17 (VUPR) -
Always Below 1
A22-15 (ESR)
VUPR A22-16 (SSR+) -
Always Below 1
SST A22-13 (SSR-)
H01015 SSR+ SSR-
C91384
C91385 C82599 H42483 NG REPAIR OR REPLACE FLOOR WIRE NO.2
OK
4 CHECK FLOOR WIRE NO.2(TO GROUND)
Floor Wire No.2 (a) Disconnect the SST from connector "C".
Airbag (b) Measure the resistance according to the value(s) in the
Sensor table below.
Assy Standard:
D A Center Tester connection Condition Specified condition
C B A22-17 (VUPR) -
Always 1 M or Higher
Body ground
Side Airbag
A22-15 (ESR) -
Sensor Assy RH A22 Body ground
Always 1 M or Higher
ESR
VUPR A22-16 (SSR+) -
Always 1 M or Higher
Body ground
A22-13 (SSR-) -
Always 1 M or Higher
Body ground
SSR+
H01015
C83438 SSR- H42229 NG REPAIR OR REPLACE FLOOR WIRE NO.2
OK
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1081
05-899
DIAGNOSTICS - SUPPLEMENTAL RESTRAINT SYSTEM
5 CHECK FLOOR WIRE NO.2(TO B+)
(a) Connect the negative (-) terminal cable to the battery,
Floor Wire No.2
Airbag and wait for at least 2 seconds.
Sensor (b) Turn the ignition switch to the ON position.
Assy (c) Measure the voltage according to the value(s) in the table
D A Center below.
C B Standard:
Side Airbag Tester connection Condition Specified condition
Sensor Assy RH A22 A22-17 (VUPR) -
Ignition switch ON Below 1 V
ESR Body ground
VUPR A22-15 (ESR) -
Ignition switch ON Below 1 V
Body ground
A22-16 (SSR+) -
Ignition switch ON Below 1 V
Body ground
SSR+ A22-13 (SSR-) -
H01015 Ignition switch ON Below 1 V
C83438
SSR- H42229 Body ground
NG REPAIR OR REPLACE FLOOR WIRE NO.2
OK
6 CHECK FLOOR WIRE NO.2(SHORT)
Floor Wire No.2
(a) Turn the ignition switch to the LOCK position.
Airbag (b) Disconnect the negative (-) terminal cable from the bat-
Sensor tery, and wait for at least 90 seconds.
Assy (c) Measure the resistance according to the value(s) in the
D A Center table below.
C B Standard:
Side Airbag Tester connection Condition Specified condition
Sensor Assy RH A22 A22-17 (VUPR) -
Always 1 M or Higher
ESR A22-15 (ESR)
VUPR A22-16 (SSR+) -
Always 1 M or Higher
A22-13 (SSR-)
SSR+
H01015
C83438
SSR- H42229 NG REPAIR OR REPLACE FLOOR WIRE NO.2
OK
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1082
05-900
DIAGNOSTICS - SUPPLEMENTAL RESTRAINT SYSTEM
7 CHECK SIDE AIR BAG SENSOR ASSY RH
(a) Connect the connector to the airbag sensor assy center.
Airbag (b) Interchange the side airbag sensor assy RH with LH and
Sensor connect the connectors to them.
Side Assy (c) Connect the negative (-) terminal cable to the battery,
Airbag and wait for at least 2 seconds.
Center
Sensor (d) Turn the ignition switch to the ON position, and wait for at
Assy LH
DTC B1140/32 least 60 seconds.
(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 B1141/33 least 60 seconds.
CG TC (h) Check the DTCs (see page 05-777 ).
H01012
Result:
H10600 H01065
H01066 H42115 NG: A DTC B1140/32 is output.
NG: B DTC B1141/33 is output.
DTC B1140/32 and B1141/33 are not
OK
output.
NG:A REPLACE AIR BAG SENSOR ASSY CENTER
(SEE PAGE 60-56 )
NG:B REPLACE SIDE AIR BAG SENSOR ASSY RH
(SEE PAGE 60-60 )
OK
USE SIMULATION METHOD TO CHECK (SEE PAGE 05-770 )
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1083
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