2005 TOYOTA AVENSIS Circuit

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H40578
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 malfunction
Instrument 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

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H40578
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 malfunction
Instrument 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

 

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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 malfunction
Instrument 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

H01454
A29
P SquibAirbag Sensor Assy Center
Y±R
Y±G 1
210
P+ A27
P± 11
A27 05±1214
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
DTC B0105/53 SHORT IN P SQUIB CIRCUIT
CIRCUIT DESCRIPTION
The P squib 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 B0105/53 is recorded when a short circuit is detected in the P squib circuit.
DTC No.DTC Detecting ConditionTrouble Area
B0105/53

Short circuit between P+ wire harness and P± wire har-
ness of P squib

P squib malfunction

Airbag sensor assy center malfunction
Instrument panel passenger airbag assy (P squib)

Airbag sensor assy center

Instrument panel wire
WIRING DIAGRAM
056LZ±03

 

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H40576
P SquibAirbag
Sensor
Assy
Center
P± P+
Instrument Panel Wire
A
B
C
D










\b\bH42107
P SquibAirbag
Sensor
Assy
Center
CG TC
DLC3
DTC B0105/53
C
D
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
05±1215
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
1CHECK 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 between 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 P+ and P± of the con- nector ºEº.
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 B0105/53 is not output.
HINT:
Codes other than code B0105/53 may be output at this time, but
they are not related to this check.
NG REPLACE AIR BAG SENSOR ASSY CENTER
OK








H41439
D Squib
Airbag
Sensor
Assy
CenterSpiral
Cable
Sub±assy
Color: Orange
A
B
C
D
E
F
05±1210
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
DTCB0103/12SHORT IN D SQUIB CIRCUIT (TO B+)
CIRCUIT DESCRIPTION
The D squib 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 conditions a\
re fulfilled.
DTC B0103/12 is recorded when a short to B+ is detected in the D squib c\
ircuit.
DTC No.DTC Detecting ConditionTrouble Area
B0103/12

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

D squib malfunction

Spiral cable sub±assy malfunction

Airbag sensor assy center malfunction
Horn button assy (D squib)

Spiral cable sub±assy

Airbag sensor assy center

Instrument panel wire
WIRING DIAGRAM
See page 05±1198.
INSPECTION PROCEDURE
1 CHECK D SQUIB CIRCUIT(AIRBAG SENSOR ASSY CENTER ± HORN BUTTON
ASSY)
(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) 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 D+ of the connector ºEº.
OK:
Voltage: Below 1 V
NG Go to step 5
OK
054LM±10








H41439
D Squib Airbag
Sensor
Assy
CenterSpiral
Cable
Sub±assy
Color: Orange
A
B
C
D
E
F
05±1206
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
DTCB0102/11SHORT IN D SQUIB CIRCUIT (TO GROUND)
CIRCUIT DESCRIPTION
The D squib 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 conditions a\
re fulfilled.
DTC B0102/11 is recorded when a short to ground is detected in the D squib circuit.\
DTC No.DTC Detecting ConditionTrouble Area
B0102/11

Short circuit in D squib wire harness (to ground)

D squib malfunction

Spiral cable sub±assy malfunction

Airbag sensor assy center malfunction
Horn button assy (D squib)

Spiral cable sub±assy

Airbag sensor assy center

Instrument panel wire
WIRING DIAGRAM
See page 05±1198.
INSPECTION PROCEDURE
1 CHECK D SQUIB CIRCUIT(AIRBAG SENSOR ASSY CENTER ± HORN BUTTON
ASSY)
(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 D+ of the connector ºEº.
OK:
Resistance: 1 M
or Higher
NG Go to step 5
OK
054LL±10




H40056
P/T Squib LHPL±
PL+ Airbag
Sensor
Assy
CenterFloor Wire
A
B
C
D
05±1276
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
DTC B0137/71 SHORT IN P/T SQUIB (LH) CIRCUIT (TO GROUND)
CIRCUIT DESCRIPTION
The P/T squib LH circuit consists of the airbag sensor assy center and the \
front seat outer belt assy LH (seat
belt pretensioner LH).
This circuit actuates the SRS to deploy when the SRS deployment conditio\
ns are fulfilled.
DTC B0137/71 is recorded when a short to ground is detected in the P/T s\
quib LH circuit.
DTC No.DTC Detecting ConditionTrouble Area
B0137/71

Short circuit in P/T squib LH wire harness (to ground)

P/T squib LH malfunction

Airbag sensor assy center malfunction
Front seat outer belt assy LH (P/T squib LH)

Airbag sensor assy center

Floor wire
WIRING DIAGRAM
See page 05±1270.
INSPECTION PROCEDURE
1 CHECK FLOOR WIRE(P/T 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 front seat outer belt assy LH.
(d) Measure the resistance between the body ground and PL+ of the connector ºCº.
OK:
Resistance: 1 M
or Higher
NG REPAIR OR REPLACE FLOOR WIRE
OK
054M5±07