TOYOTA AVENSIS 2005 Service Repair Manual

\b






H41475
D Squib
(2nd step)
Airbag
Sensor
Assy
Center
Spiral
Cable
Sub±assy
Color: Black
A
B
C
D
E
F
05±1358
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
DTC B1183/22 SHORT IN D SQUIB (2ND STEP) CIRCUIT (TO B+)
CIRCUIT DESCRIPTION
The D squib (2nd step) circuit consists of the airbag sensor assy center, the spiral cable sub±assy and the
horn button assy.
This circuit actuates the SRS to deploy when the SRS deployment conditio\
ns are fulfilled.
DTC B1183/22 is recorded when a short to B+ is detected in the D squib (2nd s\
tep) circuit.
DTC No.DTC Detecting ConditionTrouble Area
B1183/22

Short circuit in D squib (2nd step) wire harness (to B+)

D squib (2nd step) malfunction

Spiral cable sub±assy malfunction

Airbag sensor assy center malfunction
Horn button assy (D squib, 2nd step)

Spiral cable sub±assy

Airbag sensor assy center

Instrument panel wire
WIRING DIAGRAM
See page 05±1346.
CIRCUIT INSPECTION
1 CHECK D SQUIB CIRCUIT(2ND STEP)
(a) Turn the ignition switch to the LOCK position.
(b) Disconnect negative (±) terminal cable from the battery,
and wait for at least 90 seconds.
(c) Disconnect the connectors from the airbag sensor assy center and the horn button assy.
(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 D2+ of the connector ºEº.
OK:
Voltage: Below 1 V
NG Go to step 5
OK
056MV±03






\b 




H42143
Airbag
Sensor
Assy
CenterSpiral
Cable
Sub±assy
Color: Black
DTC B1183/22
CG TC
DLC3
Service Wire
D2+D2±
D Squib
(2nd step)
C
D
E
F
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
05±1359
AVENSIS REPAIR MANUAL (RM1018E)
2CHECK 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 D2+ and D2± of the connec- tor ºEº.
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 B1183/22 is not output.
HINT:
Codes other than code B1183/22 may be output at this time, but
they are not related to this check.
NG REPLACE AIR BAG SENSOR ASSY CENTER
OK



 


\bH42144
Airbag
Sensor
Assy
CenterSpiral
Cable
Sub±assy
DLC3
CG TC DTC B1183/22
D Squib
(2nd step)
C
D
E
F
05±1360
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
3CHECK HORN BUTTON ASSY(D SQUIB, 2ND STEP)
(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 connectors to the horn button assy.
(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 B1183/22 is not output.
HINT:
Codes other than code B1183/22 may be output at this time, but
they are not related to this check.
NG REPLACE HORN BUTTON ASSY
OK
4 USE SIMULATION METHOD TO CHECK
NG Go to step 1
OK
REPLACE ALL SRS COMPONENTS INCLUDING WIRE HARNESS







H41478
Airbag
Sensor
Assy
CenterSpiral
Cable
Sub±assy
Instrument Panel Wire
D Squib
(2nd step)C D
E
FBA






 
H41479
Airbag
Sensor
Assy
CenterSpiral
Cable
Sub±assy
Color: Black
D Squib
(2nd step)
C D
E FBA
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
05±1361
AVENSIS REPAIR MANUAL (RM1018E)
5 CHECK INSTRUMENT PANEL WIRE
(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 instrument panel wire connector from the
spiral cable sub±assy.
(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 D2+
of the connector ºCº.
OK:
Voltage: Below 1 V
NG REPAIR OR REPLACE INSTRUMENT PANEL
WIRE
OK
6 CHECK SPIRAL CABLE SUB±ASSY
(a) Turn the ignition switch to the LOCK position.
(b) Turn the ignition switch to the ON position.
(c) Measure the voltage between the body ground and D2+
of the connector ºEº.
OK:
Voltage: Below 1 V
NG REPLACE SPIRAL CABLE SUB±ASSY
OK
7 USE SIMULATION METHOD TO CHECK
NG Go to step 1
OK
REPLACE ALL SRS COMPONENTS INCLUDING WIRE HARNESS

\b






H41475
D Squib
(2nd step)
Airbag
Sensor
Assy
Center
Spiral
Cable
Sub±assy
Color: Black
A
B
C
D
E
F
05±1354
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
DTC B1182/19 SHORT IN D SQUIB (2ND STEP) CIRCUIT (TO GROUND)
CIRCUIT DESCRIPTION
The D squib (2nd step) circuit consists of the airbag sensor assy center, the spiral cable sub±assy and the
horn button assy.
This circuit actuates the SRS to deploy when the SRS deployment conditio\
ns are fulfilled.
DTC B1182/19 is recorded when a short to ground is detected in the D squib (2\
nd step) circuit.
DTC No.DTC Detecting ConditionTrouble Area
B1182/19

Short circuit in D squib (2nd step) wire harness (to ground)

D squib (2nd step) malfunction

Spiral cable sub±assy malfunction

Airbag sensor assy center malfunction
Horn button assy (D squib, 2nd step)

Spiral cable sub±assy

Airbag sensor assy center

Instrument panel wire
WIRING DIAGRAM
See page 05±1346.
INSPECTION PROCEDURE
1 CHECK D SQUIB CIRCUIT(2ND STEP)
(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 horn button assy.
(d) Measure the resistance between the body ground and D2+ of the connector ºCº.
OK:
Resistance: 1 M
or Higher
NG Go to step 5
OK
056MT±03




\b




\bH42141
Airbag
Sensor
Assy
CenterSpiral
Cable
Sub±assy
Color: Black
DLC3
CGTC DTC B1182/19
Service Wire
D2+
D2±
D Squib
(2nd step)
C
D
E
F
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
05±1355
AVENSIS REPAIR MANUAL (RM1018E)
2CHECK AIR BAG SENSOR ASSY CENTER
(a)Connect the connector to the airbag sensor assy center.
(b)Using a service wire, connect D2+ and D2± of the connec-
tor ºEº.
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 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
OK







\bH42142
Airbag
Sensor
Assy
CenterSpiral
Cable
Sub±assy
DLC3
CG TC DTC B1182/19
D Squib
(2nd step)
C
D
E
F
05±1356
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
3CHECK HORN BUTTON ASSY(D SQUIB, 2ND STEP)
(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 connectors to the horn button assy.
(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 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
OK
4 USE SIMULATION METHOD TO CHECK
NG Go to step 1
OK
REPLACE ALL SRS COMPONENTS INCLUDING WIRE HARNESS







H41478
Airbag
Sensor
Assy
CenterSpiral
Cable
Sub±assy
Instrument Panel Wire
D Squib
(2nd step)A
B C
D E F






 
H41479
Airbag
Sensor
Assy
CenterSpiral
Cable
Sub±assy
Color: Black
D Squib
(2nd step)
A
B C
D E F
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
05±1357
AVENSIS REPAIR MANUAL (RM1018E)
5 CHECK INSTRUMENT PANEL WIRE
(a) Disconnect the instrument panel wire connector from the
spiral cable sub±assy.
(b) Measure the resistance between the body ground and
D2+ of the connector ºCº.
OK:
Resistance: 1 M
or Higher
NG REPAIR OR REPLACE INSTRUMENT PANEL
WIRE
OK
6 CHECK SPIRAL CABLE SUB±ASSY
(a) Measure the resistance between the body ground and
D2+ of the connector ºEº.
OK:
Resistance: 1 M
or Higher
NG REPLACE SPIRAL CABLE SUB±ASSY
OK
7 USE SIMULATION METHOD TO CHECK
NG Go to step 1
OK
REPLACE ALL SRS COMPONENTS INCLUDING WIRE HARNESS

\b






H41475
D Squib
(2nd step)
Airbag
Sensor
Assy
Center
Spiral
Cable
Sub±assy
Color: Black
A
B
C
D
E
F
05±1350
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
DTC B1181/18 OPEN IN D SQUIB (2ND STEP) CIRCUIT
CIRCUIT DESCRIPTION
The D squib (2nd step) circuit consists of the airbag sensor assy center, the spiral cable sub±assy and the
horn button assy.
This circuit actuates the SRS to deploy when the SRS deployment conditio\
ns are fulfilled.
DTC B1181/18 is recorded when an open circuit is detected in the D squib (2nd\
step) circuit.
DTC No.DTC Detecting ConditionTrouble Area
B1181/18

Open circuit in D2+ wire harness or D2± wire harness of D
squib (2nd step)

D squib (2nd step) malfunction

Spiral cable sub±assy malfunction

Airbag sensor assy center malfunction
Horn button assy (D squib, 2nd step)

Spiral cable sub±assy

Airbag sensor assy center

Instrument panel wire
WIRING DIAGRAM
See page 05±1346.
INSPECTION PROCEDURE
1 CHECK D SQUIB CIRCUIT(2ND STEP)
(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 horn button assy.
(d) Measure the resistance between D2+ and D2± of the con- nector ºEº.
OK:
Resistance: Below 1

NG Go to step 4
OK
056MR±03








\b \bH42139
Airbag
Sensor
Assy
CenterSpiral
Cable
Sub±assy
Color: Black
DLC3
CG TC DTC B1181/18
Service Wire
D2+D2±
D Squib
(2nd step)
C
D
E
F
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
05±1351
AVENSIS REPAIR MANUAL (RM1018E)
2CHECK AIR BAG SENSOR ASSY CENTER
(a)Connect the connector to the airbag sensor assy center.
(b)Using a service wire, connect D2+ and D2± of the connec-
tor ºEº.
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 B1181/18 is not output.
HINT:
Codes other than code B1181/18 may be output at this time, but
they are not related to this check.
NG REPLACE AIR BAG SENSOR ASSY CENTER
OK