2005 TOYOTA AVENSIS sensor

H01454
Airbag Sensor Assy Center
C18
Curtain Shield Squib RH
8
A28 ICR+ Y±V
7
A28ICR± Y±R 1
2(*1)
(*1)
*1: w/ Curtain Shield Airbag 05±1322
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
DTC B1160/83 SHORT IN CURTAIN SHIELD SQUIB (RH)
CIRCUIT
CIRCUIT DESCRIPTION
The curtain shield squib RH circuit consists of the airbag sensor assy center and the curtain shield airbag
assy RH.
This circuit actuates the SRS to deploy when the SRS deployment conditions are fulfilled.
DTC B1160/83 is recorded when a short circuit is detected in the curtain shield squib RH circuit.
DTC No.DTC Detecting ConditionTrouble Area
B1160/83

Short circuit between ICR+ wire harness and ICR± wire har-
ness of curtain shield squib RH

Curtain shield squib RH malfunction

Airbag sensor assy center malfunction
Curtain shield airbag assy RH (Curtain shield squib RH)

Airbag sensor assy center

Floor wire No.2
HINT:
DTC B1160/83 is indicated only for the vehicle equipped with the curtain shield airbag.
WIRING DIAGRAM
056ML±03

\b






H41465
Curtain Shield
Squib RH Airbag
Sensor
Assy
Center
Floor Wire No.2
A
B
C
D
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
05±1323
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
1CHECK CONNECTOR
(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)Disconnect the connectors from the airbag sensor assy center and the curtain shiel\
d airbag assy RH.
(d)Check that the floor wire No.2 connector (on the curtain shield airbag assy RH sid\
e) is not damaged.
OK:
The lock button is not disengaged, or the claw of the lock is not deform\
ed or damaged.
NGREPAIR OR REPLACE FLOOR WIRE NO.2
OK
2CHECK FLOOR WIRE NO.2(CURTAIN SHIELD SQUIB RH CIRCUIT)
(a)Release the activation prevention mechanism built in the connector ºBº (See page 05±1184).
(b) Measure the resistance between ICR+ and ICR± of the connector ºCº.
OK:
Resistance: 1 M
or Higher
NG REPAIR OR REPLACE FLOOR WIRE NO.2
OK








H40956
Curtain Shield
Squib RHDLC3
TC
CG
DTC B1160/83
Airbag
Sensor
Assy
Center
C
D






H40931
Airbag
Sensor
Assy
Center
Curtain Shield
Squib RH
DLC3
TC
CG
DTC B1160/83
C
D
05±1324
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
3CHECK 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 B1160/83 is not output.
HINT:
Codes other than code B1160/83 may be output at this time, but
they are not related to this check.
NGREPLACE AIR BAG SENSOR ASSY CENTER
OK
4CHECK CURTAIN SHIELD AIR BAG ASSY RH(CURTAIN SHIELD SQUIB RH)
(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 curtain shield airbag assy RH.
(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 B1160/83 is not output.
HINT:
Codes other than code B1160/83 may be output at this time, but
they are not related to this check.
NG REPLACE CURTAIN SHIELD AIR BAG ASSY RH
OK
USE SIMULATION METHOD TO CHECK

H42515
Side Airbag Sensor Assy LHAirbag Sensor Assy Center C15
Airbag Sensor Rear LH
L±B
1S14
BCL±
BBL±
22
1
S14 S14 GR±R
BCL+ BBL+S143
4LG±B
GR±LBBL±
BBL+ A2618
A2616
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
05±1317
AVENSIS REPAIR MANUAL (RM1018E)
DTC B1155/39 AIRBAG SENSOR REAR (LH)
MALFUNCTION
CIRCUIT DESCRIPTION
The airbag sensor rear LH consists of the diagnosis circuit and the lateral deceleration sensor, etc.
If the airbag sensor assy center receives the signal from the lateral deceleration sensor signal in the airbag
sensor rear LH, it judges whether or not the SRS should be activated.
DTC B1155/39 is recorded when a malfunction in the airbag sensor rear LH is detected.
DTC No.DTC Detection ConditionTrouble Area
B1155/39

Short circuit in airbag sensor rear LH wire harness (to
ground)

Short circuit in airbag sensor rear LH wire harness (to B+)

Open circuit in BCL+ wire harness or BCL± wire harness
of airbag sensor rear LH

Airbag sensor rear LH malfunction

Side airbag sensor assy LH malfunction

Airbag sensor assy center malfunction

Airbag sensor rear LH

Side airbag sensor assy LH

Airbag sensor assy center

Floor wire
HINT:
DTC B1155/39 is indicated only for the vehicle equipped with the curtain shield airbag.
WIRING DIAGRAM
056MK±04




\b\b\b
H42843
Airbag
Sensor
Assy
Rear LHSide
Airbag
Sensor
Assy LH
DLC3
CG TC
DTC B1155/39
05±1318
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
1CHECK DTC
(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 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 B1155/39 is not output.
HINT:
Codes other than code B1155/39 may be output at this time, but
they are not related to this check.
NG Go to step 2
OK
USE SIMULATION METHOD TO CHECK
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 side airbag sensor as\
sy LH and the airbag sensor rear LH.
OK:
The connectors are connected.
NG CONNECT CONNECTORS
OK





H42511
Airbag Sensor
Rear LHSide
Airbag
Sensor
Assy LH Floor Wire
BCL+
BCL±
A
B
C D
1
2
Service Wire



H42525
Airbag Sensor
Rear LHFloor Wire
Side
Airbag
Sensor
Assy LH
BCL+
BCL±
A
B C D
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
05±1319
AVENSIS REPAIR MANUAL (RM1018E)
3 CHECK FLOOR WIRE(OPEN)
(a) Disconnect the connectors from the side airbag sensor
assy LH and the airbag sensor rear LH.
(b) Using a service wire, connect 1 and 2 of the connector
ºCº.
NOTICE:
Do not forcibly insert a service wire into the terminal of the
connector when connecting.
(c) Measure the resistance between BCL+ and BCL± of the
connector ºBº.
OK:
Resistance: Below 1

NG REPAIR OR REPLACE FLOOR WIRE
OK
4 CHECK FLOOR WIRE(TO B+)
(a) Disconnect the service wire from the connector ºCº.
(b) Connect the negative (±) terminal cable to the battery,
and turn the ignition switch to the ON position.
(c) Measure the voltage between the body ground and each
of BCL+ and BCL± of the connector ºBº.
OK:
Voltage: Below 1 V
NG REPAIR OR REPLACE FLOOR WIRE
OK

\b\bH42525
Airbag Sensor
Rear LHFloor Wire
Side
Airbag
Sensor
Assy LH
BCL+ BCL±
A
B
C
D




 \b

  \b
H42842
Side
Airbag
Sensor
Assy LH
DLC3
CG TC DTC B1154/38
DTC B1155/39Airbag
Sensor
Rear RH
05±1320
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
5CHECK FLOOR WIRE(TO GROUND)
(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)Measure the resistance between the body ground and each of BCL+ and BCL± of the connector ºBº.
OK:
Resistance: 10 k
or Higher
NGREPAIR OR REPLACE FLOOR WIRE
OK
6CHECK AIR BAG SENSOR REAR 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 side airbag sensor assy LH.
(d)Interchange the airbag sensor rear RH with LH and con- nect the connectors to them.
(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:
A: DTC B1154/38 is not output.
B: DTC B1155/39 is not output.
NG:A Go to step 7
NG:B REPLACE AIR BAG SENSOR REAR LH
OK
USE SIMULATION METHOD TO CHECK







\b
\bH42128
Side
Airbag
Sensor
Assy RH
DLC3
CG TC DTC B1154/38
DTC B1155/39
Airbag
Sensor
Assy
Center
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
05±1321
AVENSIS REPAIR MANUAL (RM1018E)
7CHECK SIDE AIR BAG SENSOR ASSY 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)Return the interchanged airbag sensor rear RH and LH to the original condition and connect the connectors to
them.
(d)Interchange the side airbag sensor assy RH with LH and
connect the connectors to them.
(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) Tune 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:
A: DTC B1154/38 is not output.
B: DTC B1155/39 is not output.
NG:A REPLACE AIR BAG SENSOR ASSY CENTER
NG:B REPLACE SIDE AIR BAG SENSOR ASSY LH
OK
USE SIMULATION METHOD TO CHECK