Page 1265 of 5135

\b\b\b\bH40578
P SquibAirbag
Sensor
Assy
Center
P+
Instrument Panel Wire
A
B
C
D
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
05±1223
AVENSIS REPAIR MANUAL (RM1018E)
DTCB0108/52SHORT IN P SQUIB CIRCUIT (TO B+)
CIRCUIT DESCRIPTION
The P squib circuit consists of the airbag sensor assy center and the instr\
ument panel passenger airbag
assy.
This circuit actuates the SRS to deploy when the SRS deployment conditions a\
re fulfilled.
DTC B0108/52 is recorded when a short to B+ is detected in the P squib c\
ircuit.
DTC No.DTC Detecting ConditionTrouble Area
B0108/52
Short circuit in P squib wire harness (to B+)
P squib malfunction
Airbag sensor assy center malfunctionInstrument panel passenger airbag assy (P squib)
Airbag sensor assy center
Instrument panel wire
WIRING DIAGRAM
See page 05±1214.
INSPECTION PROCEDURE
1 CHECK INSTRUMENT PANEL WIRE(P SQUIB 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) 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 P+ of the connector ºCº.
OK:
Voltage: Below 1 V
NG REPAIR OR REPLACE INSTRUMENT PANEL WIRE
OK
054LQ±09
Page 1266 of 5135

\b
\bH40581
Airbag
Sensor
Assy
Center
P Squib
P+
P±
DLC3
CG TC DTC B0108/52
Instrument Panel Wire
SST
C
D
05±1224
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
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 SST, connect P+ and P± of the connector ºCº. SST09843±18040
(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 B0108/52 is not output.
HINT:
Codes other than code B0108/52 may be output at this time, but
they are not related to this check.
NG REPLACE AIR BAG SENSOR ASSY CENTER
OK
Page 1267 of 5135

H40047
P Squib
DLC3
CG TC DTC B0108/52Airbag
Sensor
Assy
Center
C
D
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
05±1225
AVENSIS REPAIR MANUAL (RM1018E)
3CHECK INSTRUMENT PANEL PASSENGER AIR BAG ASSY(P SQUIB)
(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 B0108/52 is not output.
HINT:
Codes other than code B0108/52 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 1268 of 5135

\b\b\b\bH40578
P SquibAirbag
Sensor
Assy
Center
P+
Instrument Panel Wire
A
B
C
D
05±1220
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
DTC B0107/51 SHORT IN P SQUIB CIRCUIT (TO GROUND)
CIRCUIT DESCRIPTION
The P squib circuit consists of the airbag sensor assy center and the instr\
ument panel passenger airbag
assy.
This circuit actuates the SRS to deploy when the SRS deployment conditions a\
re fulfilled.
DTC B0107/51 is recorded when a short to ground is detected in the P squ\
ib circuit.
DTC No.DTC Detecting ConditionTrouble Area
B0107/51
Short circuit in P squib wire harness (to ground)
P squib malfunction
Airbag sensor assy center malfunctionInstrument panel passenger airbag assy (P squib)
Airbag sensor assy center
Instrument panel wire
WIRING DIAGRAM
See page 05±1214.
INSPECTION PROCEDURE
1 CHECK INSTRUMENT PANEL WIRE(P SQUIB 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 P+ of the connector ºCº.
OK:
Resistance: 1 M or Higher
NG REPAIR OR REPLACE INSTRUMENT PANEL WIRE
OK
054LP±09
Page 1269 of 5135
\b
\bH40579
P SquibAirbag
Sensor
Assy
Center
DTC B0107/51
DLC3
CG TC
P±
P+
Instrument Panel Wire
SST
C
D
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
05±1221
AVENSIS REPAIR MANUAL (RM1018E)
2 CHECK AIR BAG SENSOR ASSY CENTER
(a) Connect the connector to the airbag sensor assy center.
(b) Using SST, connect P+ and P± of the connector ºCº.
SST 09843±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 B0107/51 is not output.
HINT:
Codes other than code B0107/51 may be output at this time, but
they are not related to this check.
NG REPLACE AIR BAG SENSOR ASSY CENTER
OK
Page 1270 of 5135

\b\b\bH40045
P SquibDTC B0107/51
DLC3
CG TCAirbag
Sensor
Assy
Center
C
D
05±1222
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
3 CHECK INSTRUMENT PANEL PASSENGER AIR BAG ASSY(P SQUIB)
(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 B0107/51 is not output.
HINT:
Codes other than code B0107/51 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 1271 of 5135

\b
\b
H40576
P SquibAirbag
Sensor
Assy
Center
P± P+
Instrument Panel Wire
A
B
C
D
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
05±1217
AVENSIS REPAIR MANUAL (RM1018E)
DTCB0106/54OPEN IN P SQUIB CIRCUIT
CIRCUIT DESCRIPTION
The P squib circuit consists of the airbag sensor assy center and the instr\
ument panel passenger airbag
assy.
This circuit actuates the SRS to deploy when the SRS deployment conditions a\
re fulfilled.
DTC B0106/54 is recorded when an open circuit is detected in the P squib\
circuit.
DTC No.DTC Detecting ConditionTrouble Area
B0106/54
Open circuit in P+ wire harness or P± wire harness of P squib
P squib malfunction
Airbag sensor assy center malfunctionInstrument panel passenger airbag assy (P squib)
Airbag sensor assy center
Instrument panel wire
WIRING DIAGRAM
See page 05±1214.
INSPECTION PROCEDURE
1 CHECK INSTRUMENT PANEL WIRE(P SQUIB 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 P+ and P± of the con- nector ºCº.
OK:
Resistance: Below 1
NG REPAIR OR REPLACE INSTRUMENT PANEL WIRE
OK
056M0±03
Page 1272 of 5135
\b
\b H40577
P SquibAirbag
Sensor
Assy
Center
DTC B0106/54
DLC3
CG TC
P±
P+
Instrument Panel Wire
SST
C
D
05±1218
±
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 P+ and P± 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 B0106/54 is not output.
HINT:
Codes other than code B0106/54 may be output at this time, but
they are not related to this check.
NG REPLACE AIR BAG SENSOR ASSY CENTER
OK