2005 TOYOTA AVENSIS airbag






H42333
Airbag
Sensor
Assy
Center
Front Seat Inner
Belt Assy RH
DLC3
CG TC DTC B0121/B0122/26
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
05±1253
AVENSIS REPAIR MANUAL (RM1018E)
5CHECK AIR BAG SENSOR ASSY CENTER
(a)Connect the connector to the airbag sensor assy center.
(b)Connect the negative (±) terminal cable to the battery,
and wait for at least 2 seconds.
(c)Turn the ignition switch to the ON position, and wait for at least 10 seconds.
(d)Clear the stored DTCs in the memory (See page 05±1184).
(e) Turn the ignition switch to the LOCK position.
(f) Turn the ignition switch to the ON position, and wait for at least 10 seconds.
(g)Check the DTCs (See page 05±1184).
OK:
DTC B0121/26 or B0122/26 is not output.
HINT:
Codes other than code B0121/26 or B0122/26 may be output
at this time, but they are not relevant to this check.
NG REPLACE AIR BAG SENSOR ASSY CENTER
OK
USE SIMULATION METHOD TO CHECK

\b

\bH42853
Side Squib LHAirbag
Sensor
Assy
Center
SFL±
SFL+Floor Wire
A
B
C
D
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
05±1247
AVENSIS REPAIR MANUAL (RM1018E)
DTC B0118/46 SHORT IN SIDE SQUIB (LH) CIRCUIT (TO
B+)
CIRCUIT DESCRIPTION
The side squib LH circuit consists of the airbag sensor assy center and the\
separate type front seat back
assy (side squib LH).
This circuit actuates the SRS to deploy when the SRS deployment conditio\
ns are fulfilled.
DTC B0118/46 is recorded when a short to B+ is detected in the side squib LH ci\
rcuit.
DTC No.DTC Detecting ConditionTrouble Area
B0118/46

Short circuit in side squib LH wire harness (to B+)

Side squib LH malfunction

Airbag sensor assy center malfunction
Separate type front seat back assy (Side squib LH)

Airbag sensor assy center

Floor wire
WIRING DIAGRAM
See page 05±1238.
INSPECTION PROCEDURE
1 CHECK FLOOR WIRE(SIDE SQUIB LH CIRCUIT)
(a) Turn the ignition switch to the LOCK position.
(b) Disconnect the negative (±) terminal cable from the bat-
tery, and wait for at least 90 seconds.
(c) Disconnect the connectors from the airbag sensor assy center and the separate type front seat back assy (side
squib LH).
(d) Connect the negative (±) terminal cable to the battery,
and turn the ignition switch to the ON position.
(e) Measure the voltage between the body ground and SFL+ of the connector ºCº.
OK:
Voltage: Below 1 V
NG REPAIR OR REPLACE FLOOR WIRE
OK
054LY±06

\b


\b


\b

\bH42856
Side Squib LH
CGTC DTC B0118/46
DLC3 Airbag
Sensor
Assy
Center
SFL±
SFL+
Floor Wire
Service Wire
C
D
05±1248
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
2 CHECK AIR BAG SENSOR ASSY CENTER
(a) Turn the ignition switch to the LOCK position.
(b) Disconnect the negative (±) terminal cable from the bat- tery, and wait for at least 90 seconds.
(c) Connect the connector to the airbag sensor assy center.
(d) Using a service wire, connect SFL+ and SFL± of the con- nector ºCº.
NOTICE:
Do not forcibly insert a service wire into the terminal of the
connector when connecting.
(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 least 10 seconds.
(g)Clear the stored DTCs in the memory (See page 05±1184).
(h) Turn the ignition switch to the LOCK position.
(i) Turn the ignition switch to the ON position, and wait for at
least 10 seconds.
(j)Check the DTCs (See page 05±1184). OK:
DTC B0118/46 is not output.
HINT:
Codes other than code B0118/46 may be output at this time, but
they are not related to this check.
NG REPLACE AIR BAG SENSOR ASSY CENTER
OK









H40994
Side Squib LHDTC B0118/46
DLC3
TC
CG Airbag
Sensor
Assy
Center
C
D
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
05±1249
AVENSIS REPAIR MANUAL (RM1018E)
3 CHECK SEPARATE TYPE FRONT SEAT BACK ASSY(SIDE SQUIB LH)
(a) Turn the ignition switch to the LOCK position.
(b) Disconnect the negative (±) terminal cable from the bat-
tery, and wait for at least 90 seconds.
(c) Connect the connector to the separate type front seat back assy (side squib LH).
(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 least 10 seconds.
(f)Clear the stored DTCs in the memory (See page 05±1184).
(g) Turn the ignition switch to the LOCK position.
(h) Turn the ignition switch to the ON position, and wait for at least 10 seconds.
(i)Check the DTCs (See page 05±1184). OK:
DTC B0118/46 is not output.
HINT:
Codes other than code B0118/46 may be output at this time, but
they are not related to this check.
NG REPLACE SEPARATE TYPE FRONT SEAT BACK ASSY
OK
4 USE SIMULATION METHOD TO CHECK
NG Go to step 1
OK
REPLACE ALL SRS COMPONENTS INCLUDING WIRE HARNESS

\b

\bH42853
Airbag
Sensor
Assy
Center
SFL±
SFL+
Side Squib LH
Floor Wire
A
B
C
D
05±1244
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
DTC B0117/45 SHORT IN SIDE SQUIB (LH) CIRCUIT (TO GROUND)
CIRCUIT DESCRIPTION
The side squib LH circuit consists of the airbag sensor assy center and the\
separate type front seat back
assy (side squib LH).
This circuit actuates the SRS to deploy when the SRS deployment conditio\
ns are fulfilled.
DTC B0117/45 is recorded when a short to ground is detected in the side squib L\
H circuit.
DTC No.DTC Detecting ConditionTrouble Area
B0117/45

Short circuit in side squib LH wire harness (to ground)

Side squib LH malfunction

Airbag sensor assy center malfunction
Separate type front seat back assy (Side squib LH)

Airbag sensor assy center

Floor wire
WIRING DIAGRAM
See page 05±1238.
INSPECTION PROCEDURE
1 CHECK FLOOR WIRE(SIDE SQUIB LH CIRCUIT)
(a) Turn the ignition switch to the LOCK position.
(b) Disconnect the negative (±) terminal cable from the bat-
tery, and wait for at least 90 seconds.
(c) Disconnect the connectors from the airbag sensor assy center and the separate type front seat back assy (side
squib LH).
(d) Measure the resistance between the body ground and
SFL+ of the connector ºCº.
OK:
Resistance: 1 M
or Higher
NG REPAIR OR REPLACE FLOOR WIRE
OK
054LX±06

\b


\b


\b

\bH42855
DLC3
CG TC DTC B0117/45Airbag
Sensor
Assy
Center
Side Squib LH
SFL±
SFL+
Floor Wire
Service Wire
C
D
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
05±1245
AVENSIS REPAIR MANUAL (RM1018E)
2 CHECK AIR BAG SENSOR ASSY CENTER
(a) Connect the connector to the airbag sensor assy center.
(b) Using a service wire, connect SFL+ and SFL± of the con-
nector ºCº.
NOTICE:
Do not forcibly insert a service wire into the terminal of the
connector when connecting.
(c) Connect the negative (±) terminal cable to the battery, and wait for at least 2 seconds.
(d) Turn the ignition switch to the ON position, and wait for at least 10 seconds.
(e)Clear the stored DTCs in the memory (See page
05±1184).
(f) Turn the ignition switch to the LOCK position.
(g) Turn the ignition switch to the ON position, and wait for at least 10 seconds.
(h)Check the DTCs (See page 05±1184).
OK:
DTC B0117/45 is not output.
HINT:
Codes other than code B0117/45 may be output at this time, but
they are not related to this check.
NG REPLACE AIR BAG SENSOR ASSY CENTER
OK









H40992
TC
Side Squib LH
DTC B0117/45
DLC3
CG Airbag
Sensor
Assy
Center
C
D
05±1246
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
3 CHECK SEPARATE TYPE FRONT SEAT BACK ASSY(SIDE SQUIB LH)
(a) Turn the ignition switch to the LOCK position.
(b) Disconnect the negative (±) terminal cable from the bat- tery, and wait for at least 90 seconds.
(c) Connect the connector to the separate type front seat back assy (side squib LH).
(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 least 10 seconds.
(f)Clear the stored DTCs in the memory (See page 05±1184).
(g) Turn the ignition switch to the LOCK position.
(h) Turn the ignition switch to the ON position, and wait for at least 10 seconds.
(i)Check the DTCs (See page 05±1184). OK:
DTC B0117/45 is not output.
HINT:
Codes other than code B0117/45 may be output at this time, but
they are not related to this check.
NG REPLACE SEPARATE TYPE FRONT SEAT BACK ASSY
OK
4 USE SIMULATION METHOD TO CHECK
NG Go to step 1
OK
REPLACE ALL SRS COMPONENTS INCLUDING WIRE HARNESS

\b

\bH42853
Side Squib LHAirbag
Sensor
Assy
Center
SFL+SFL±Floor Wire
B
DC A
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
05±1241
AVENSIS REPAIR MANUAL (RM1018E)
DTCB0116/48OPEN IN SIDE SQUIB (LH) CIRCUIT
CIRCUIT DESCRIPTION
The side squib LH circuit consists of the airbag sensor assy center and the\
separate type front seat back
assy (side squib LH).
This circuit the SRS to deploy when the SRS deployment conditions are fu\
lfilled.
DTC B0116/48 is recorded when an open circuit is detected in the side squib LH \
circuit.
DTC No.DTC Detecting ConditionTrouble Area
B0116/48

Open circuit in SFL+ wire harness or SFL± wire harness of
side squib LH

Side squib LH malfunction

Airbag sensor assy center malfunction
Separate type front seat back assy (Side squib LH)

Airbag sensor assy center

Floor wire
WIRING DIAGRAM
See page 05±1238.
INSPECTION PROCEDURE
1 CHECK FLOOR WIRE(SIDE SQUIB LH CIRCUIT)
(a) Turn the ignition switch to the LOCK position.
(b) Disconnect the negative (±) terminal cable from the bat-
tery, and wait for at least 90 seconds.
(c) Disconnect the connectors from the airbag sensor assy center and the separate type front seat back assy (side
squib LH).
(d) Measure the resistance between SFL+ and SFL± of the connector ºCº.
OK:
Resistance: Below 1

NG REPAIR OR REPLACE FLOOR WIRE
OK
056M4±03