TOYOTA AVENSIS 2005 Service Repair Manual
Page 1371 of 5135
H40064
P/T Squib LHDLC3
DTC B0138/72
CG TC Airbag
Sensor
Assy
Center
C
D
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
05±1281
AVENSIS REPAIR MANUAL (RM1018E)
3 CHECK FRONT SEAT OUTER BELT ASSY LH(P/T 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 front seat outer belt assy 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 B0138/72 is not output.
HINT:
Codes other than code B0138/72 may be output at this time, but
they are not related to this check.
NG REPLACE FRONT SEAT OUTER BELT ASSY LH
OK
4 USE SIMULATION METHOD TO CHECK
NG Go to step 1
OK
REPLACE ALL SRS COMPONENTS INCLUDING WIRE HARNESS
Page 1372 of 5135
H40584
P Squib
(2nd step)Airbag
Sensor
Assy
Center
P2+
Instrument Panel Wire
A
B
C
D
05±1368
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
DTC B1187/55 SHORT IN P SQUIB (2ND STEP) CIRCUIT (TO GROUND)
CIRCUIT DESCRIPTION
The P squib (2nd step) circuit consists of the airbag sensor assy center \
and the instrument panel passenger
airbag assy.
This circuit actuates the SRS to deploy when the SRS deployment conditio\
ns are fulfilled.
DTC B1187/55 is recorded when a short to ground is detected in the P squib (2\
nd step) circuit.
DTC No.DTC Detecting ConditionTrouble Area
B1187/55
Short circuit in P squib (2nd step) wire harness (to ground)
P squib (2nd step) malfunction
Airbag sensor assy center malfunctionInstrument panel passenger airbag assy (P squib, 2nd step)
Airbag sensor assy center
Instrument panel wire
WIRING DIAGRAM
See page 05±1362.
INSPECTION PROCEDURE
1 CHECK INSTRUMENT PANEL WIRE(P SQUIB, 2ND STEP 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 instrument panel passenger airbag assy.
(d) Measure the resistance between the body ground and
P2+ of the connector ºCº.
OK:
Resistance: 1 M or Higher
NG REPAIR OR REPLACE INSTRUMENT PANEL WIRE
OK
056MZ±03
Page 1373 of 5135
\bH42251
Airbag
Sensor
Assy
Center
P2+
P2±
DLC3 DTC B1187/55
TC
CGP Squib
(2nd step)Instrument Panel Wire
SST
C
D
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
05±1369
AVENSIS REPAIR MANUAL (RM1018E)
2CHECK AIR BAG SENSOR ASSY CENTER
(a)Connect the connector to the airbag sensor assy center.
(b)Using SST, connect P2+ and P2± of the connector ºCº.
SST09843±18040
(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 B1187/55 is not output.
HINT:
Codes other than code B1187/55 may be output at this time, but
they are not related to this check.
NG REPLACE AIR BAG SENSOR ASSY CENTER
OK
Page 1374 of 5135
\b\b\bH42150
DTC B1187/55
DLC3 Airbag
Sensor
Assy
Center
TC
P Squib
(2nd step)
CG C
D
05±1370
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
3CHECK INSTRUMENT PANEL PASSENGER AIR BAG ASSY(P 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 connector to the instrument panel passen- ger airbag 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 B1187/55 is not output.
HINT:
Codes other than code B1187/55 may be output at this time, but
they are not related to this check.
NG REPLACE INSTRUMENT PANEL PASSENGER AIR BAG ASSY
OK
4 USE SIMULATION METHOD TO CHECK
NG Go to step 1
OK
REPLACE ALL SRS COMPONENTS INCLUDING WIRE HARNESS
Page 1375 of 5135
\bH40583
P Squib
(2nd step)Airbag
Sensor
Assy
Center
P2+
P2±Instrument Panel Wire
A
B
C
D
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
05±1365
AVENSIS REPAIR MANUAL (RM1018E)
DTC B1186/58 OPEN IN P SQUIB (2ND STEP) CIRCUIT
CIRCUIT DESCRIPTION
The P squib (2nd step) circuit consists of the airbag sensor assy center \
and the instrument panel passenger
airbag assy.
This circuit actuates the SRS to deploy when the SRS deployment conditio\
ns are fulfilled.
DTC B1186/58 is recorded when an open circuit is detected in the P squib (2nd\
step) circuit.
DTC No.DTC Detecting ConditionTrouble Area
B1186/58
Open circuit in P2+ wire harness or P2± wire harness of P
squib (2nd step)
P squib (2nd step) malfunction
Airbag sensor assy center malfunctionInstrument panel passenger airbag assy (P squib, 2nd step)
Airbag sensor assy center
Instrument panel wire
WIRING DIAGRAM
See page 05±1362.
INSPECTION PROCEDURE
1 CHECK INSTRUMENT PANEL WIRE(P SQUIB, 2ND STEP 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 instrument panel passenger airbag assy.
(d) Measure the resistance between P2+ and P2± of the con- nector ºCº.
OK:
Resistance: Below 1
NG REPAIR OR REPLACE INSTRUMENT PANEL WIRE
OK
056MY±03
Page 1376 of 5135
\bH42250
Airbag
Sensor
Assy
Center
P2+
P2±
DTC B1186/58
DLC3
TC
CGP Squib
(2nd step)
Instrument Panel Wire
SST
C
D
05±1366
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
2CHECK AIR BAG SENSOR ASSY CENTER
(a)Connect the connector to the airbag sensor assy center.
(b)Using SST, connect P2+ and P2± of the connector ºCº. SST09843±18040
(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 B1186/58 is not output.
HINT:
Codes other than code B1186/58 may be output at this time, but
they are not related to this check.
NG REPLACE AIR BAG SENSOR ASSY CENTER
OK
Page 1377 of 5135
H42148
DLC3 Airbag
Sensor
Assy
Center
TC
CGDTC B1186/58
P Squib
(2nd step)
C
D
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
05±1367
AVENSIS REPAIR MANUAL (RM1018E)
3 CHECK INSTRUMENT PANEL PASSENGER AIR BAG ASSY(P 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 connector to the instrument panel passen- ger airbag 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 B1186/58 is not output.
HINT:
Codes other than code B1186/58 may be output at this time, but
they are not related to this check.
NG REPLACE INSTRUMENT PANEL PASSENGER AIR BAG ASSY
OK
USE SIMULATION METHOD TO CHECK
Page 1378 of 5135
H01454
A29
P Squib (2nd step)Airbag Sensor Assy Center
Y
Y±B 3
48
P2+ A27
P2± 7
A27 05±1362
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
DTC B1185/57 SHORT IN P SQUIB (2ND STEP) CIRCUIT
CIRCUIT DESCRIPTION
The P squib (2nd step) circuit consists of the airbag sensor assy center and the instrument panel passenger
airbag assy.
This circuit actuates the SRS to deploy when the SRS deployment conditions are fulfilled.
DTC B1185/57 is recorded when a short circuit is detected in the P squib (2nd step) circuit.
DTC No.DTC Detecting ConditionTrouble Area
B1185/57
Short circuit between P2+ wire harness and P2± wire harness
of P squib (2nd step)
P squib (2nd step) malfunction
Airbag sensor assy center malfunctionInstrument panel passenger airbag assy (P squib, 2nd step)
Airbag sensor assy center
Instrument panel wire
WIRING DIAGRAM
056MX±03
Page 1379 of 5135
\b H40583
P Squib
(2nd step)Airbag
Sensor
Assy
Center
P2+
P2±
Instrument Panel Wire
A
B
C
D
\bH42145
P Squib
(2nd step) Airbag
Sensor
Assy
Center
DLC3
CGTC DTC B1185/57
C
D
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
05±1363
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
1CHECK INSTRUMENT PANEL WIRE(P SQUIB, 2ND STEP 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 instrument panel passenger airbag assy.
(d)Release the activation prevention mechanism built in the connector ºBº (See page 05±1184).
(e)Measure the resistance between P2+ and P2± of the con- nector ºCº.
OK:
Resistance: 1 M or Higher
NGREPAIR OR REPLACE INSTRUMENT PANEL WIRE
OK
2CHECK 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 B1185/57 is not output.
HINT:
Codes other than code B1185/57 may be output at this time, but
they are not related to this check.
NG REPLACE AIR BAG SENSOR ASSY CENTER
OK
Page 1380 of 5135
H42146
P Squib
(2nd step)Airbag
Sensor
Assy
Center
DTC B1185/57
TC
CG
DLC3 C
D
05±1364
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
3CHECK INSTRUMENT PANEL PASSENGER AIR BAG ASSY(P 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 connector to the instrument panel passen- ger airbag 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 B1185/57 is not output.
HINT:
Codes other than code B1185/57 may be output at this time, but
they are not related to this check.
NG REPLACE INSTRUMENT PANEL PASSENGER AIR BAG ASSY
OK
USE SIMULATION METHOD TO CHECK