TOYOTA AVENSIS 2005 Service Repair Manual

H01451
A30
D Squib
1
2Y±B
YA2714Airbag Sensor Assy Center
Spiral Cable
Sub±assyA2713D+
D± 05±1198
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
DTC B0100/13 SHORT IN D SQUIB CIRCUIT
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 are fulfilled.
DTC B0100/13 is recorded when a short circuit is detected in the D squib circuit.
DTC No.DTC Detecting ConditionTrouble Area
B0100/13

Short circuit between D+ wire harness and D± wire harness
of D squib

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
056LX±04








H41439
D Squib Airbag
Sensor
Assy
CenterSpiral
Cable
Sub±assy
Color: Orange
A
B
C
D
E
F
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
05±1199
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 hor\
n button assy.
(d)Check that the spiral cable sub±assy connectors (on the horn button \
assy side) are not damaged.
OK:
The lock button is not disengaged, or the claw of the lock is not deform\
ed or damaged.
NGREPLACE SPIRAL CABLE SUB±ASSY
OK
2CHECK D SQUIB CIRCUIT(AIRBAG SENSOR ASSY CENTER ± HORN BUTTON ASSY)
(a)Release the activation prevention mechanism built in the
connector ºBº (See page 05±1184).
(b) Measure the resistance between D+ and D± of the con-
nector ºEº.
OK:
Resistance: 1 M
or Higher
NG Go to step 5
OK









H40030
D SquibAirbag
Sensor
Assy
Center
DLC3
CG TC DTC B0100/13Spiral
Cable
Sub±assy
C
D
E
F








H40031
D Squib Airbag
Sensor
Assy
Center
DLC3
CG TC DTC B0100/13Spiral
Cable
Sub±assy
C
D
E
F
05±1200
±
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 B0100/13 is not output.
HINT:
Codes other than code B0100/13 may be output at this time, but
they are not related to this check.
NGREPLACE AIR BAG SENSOR ASSY CENTER
OK
4CHECK HORN BUTTON ASSY(D 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 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 B0100/13 is not output.
HINT:
Codes other than code B0100/13 may be output at this time, but
they are not related to this check.
NG REPLACE HORN BUTTON ASSY
OK
USE SIMULATION METHOD TO CHECK

\b






\bH41440
D Squib Airbag
Sensor
Assy
CenterSpiral
Cable
Sub±assy
Instrument Panel Wire
A
B
C
D
E
F
\b




H41441
D Squib Airbag
Sensor
Assy
CenterSpiral
Cable
Sub±assy
Color: Orange
A
B
C
D
E
F
D± D+
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
05±1201
AVENSIS REPAIR MANUAL (RM1018E)
5CHECK INSTRUMENT PANEL WIRE
(a)Disconnect the instrument panel wire connector from the
spiral cable sub±assy.
(b)Release the activation prevention mechanism built in the connector of the connector ºBº (See page
05±1184).
(c)Measure the resistance between D+ and D± of the con- nector ºCº.
OK:
Resistance: 1 M
or Higher
NGREPAIR OR REPLACE INSTRUMENT PANEL WIRE
OK
6CHECK SPIRAL CABLE SUB±ASSY
(a)Release the activation prevention mechanism built in the connector ºDº (See page 05±1184).
(b) Measure the resistance between D+ and D± of the con-
nector ºEº.
OK:
Resistance: 1 M
or Higher
NG REPLACE SPIRAL CABLE SUB±ASSY
OK
USE SIMULATION METHOD TO CHECK

050YH±19
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
05±1197
AVENSIS REPAIR MANUAL (RM1018E)
PROBLEM SYMPTOMS TABLE
HINT:
Proceed the troubleshooting for each circuit in the below table.
SymptomSuspect AreaSee page

When the ignition switch is ON, the SRS warning light some-
times come on after approx. 6 seconds.

SRS warning light circuit malfunction

SRS warning light is always lit up even when ignition switch is in
the LOCK position.
SRS warning light circuit malfunction
(Always lights up, when ignition switch is LOCK position).05±1386

With the ignition switch is ON, the SRS warning light does not
come on.
SRS warning light circuit malfunction
(Does not light up, when ignition switch is turned to ON).05±1389

DTC is not displayed.

SRS warning light is always on at the time of DTC check proce-
dure.
TC terminal circuit05±1391

DTC is displayed without connecting TC and CG terminal.

05C5W±01
H40533
A26A27
A28
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
05±1195
AVENSIS REPAIR MANUAL (RM1018E)
TERMINALS OF ECU
Terminal No.Terminal SymbolDestination (Wire Harness Side)
A±Half Connection Detection Mechanism
B±Half Connection Detection Mechanism
A27±3LACombination Meter Assy (SRS Warning Light)
A27±4GSW1 DBEWIntegration relay
A27±5IG2IGN Fuse
A27±7P2±Instrument Panel Passenger Airbag Assy (P Squib, 2nd step)
A27±8P2+Instrument Panel Passenger Airbag Assy (P Squib, 2nd step)
A27±9SR+Airbag Front RH Sensor
A27±10P+Instrument Panel Passenger Airbag Assy (P Squib)
A27±11P±Instrument Panel Passenger Airbag Assy (P Squib)
A27±12SILDLC3
A27±13D±Horn Button Assy (D Squib)
A27±14D+Horn Button Assy (D Squib)
A27±15SL+Airbag Sensor Front LH
A27±16D2+Horn Button Assy (D Squib, 2nd step)
A27±17D2±Horn Button Assy (D Squib,2nd step)
A27±19TCDLC3
A27±20SR±Airbag Front RH Sensor
A27±23 (*1)GSW2ECM
A27±26SL±Airbag Sensor Front LH
A27±27E1Ground
A27±28E2Ground
A26±2 (*2)LBE±Front Seat Inner Belt Assy LH (Buckle Switch LH)
A26±3 (*2)LSP±Seat Position Airbag Sensor
A26±4 (*2)LSP+Seat Position Airbag Sensor
A26±7PL±Front Seat Outer Belt Assy LH (P/T Squib LH)
A26±8PL+Front Seat Outer Belt Assy LH (P/T Squib LH)
A26±9 (*3)ICL+Curtain Shield Airbag Assy LH (Curtain Shield Squib LH)
A26±10 (*3)ICL±Curtain Shield Airbag Assy LH (Curtain Shield Squib LH)
A26±11SFL±Separate Type Front Seat Back Assy (Side Squib LH)
A26±12SFL+Separate Type Front Seat Back Assy (Side Squib LH)
A26±16BBL+Side Airbag Sensor Assy LH
A26±18BBL±Side Airbag Sensor Assy LH
A26±19 (*2)LBE+Front Seat Inner Belt Assy LH (Buckle Switch LH)

05±1196
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)Terminal No.Destination (Wire Harness Side) Terminal Symbol
A28±1 (*4)RSP+Seat Position Airbag Sensor
A28±2 (*4)RSP±Seat Position Airbag Sensor
A28±3 (*4)RBE±Front Seat Inner Belt Assy RH (Buckle Switch RH)
A28±5SFR+Separate Type Front Seat Back Assy (Side Squib RH)
A28±6SFR±Separate Type Front Seat Back Assy (Side Squib RH)
A28±7 (*3)ICR±Curtain Shield Airbag Assy RH (Curtain Shield Squib RH)
A28±8 (*3)ICR+Curtain Shield Airbag Assy RH(Curtain Shield Squib RH)
A28±9PR+Front Seat Outer Belt Assy RH (P/T Squib RH)
A28±10PR±Front Seat Outer Belt Assy RH (P/T Squib RH)
A28±11DK±Instrument Panel Airbag Assy (Knee Squib)
A28±12DK+Instrument Panel Airbag Assy (Knee Squib)
A28±14 (*4)RBE+Front Seat Inner Belt Assy RH (Buckle Switch RH)
A28±15BBR±Side Airbag Sensor Assy RH
A28±17BBR+Side Airbag Sensor Assy RH
*1: Gasoline Engine
*2: LHD
*3: w/ Curtain Shield Airbag
*4: RHD

050X1±21
H42508
Instrument Panel Passenger Airbag Assy
Separate Type Front Seat Back
Assy (Side Squib RH)
Side Airbag
Sensor Assy LH Airbag Sensor
Front LH
Front Seat Outer Belt Assy LHFront Seat Outer Belt Assy RH Airbag Front RH Sensor Combination Meter Assy:
Curtain Shield Airbag Assy RH (*3)
Airbag Sensor
Rear RH (*3) Seat Position
Airbag Sensor Curtain Shield
Airbag Assy LH
(*3)
Horn Button Assy
Airbag Sensor Assy Center Airbag Sensor
Rear LH (*3)Side Airbag Sensor Assy RH
Front Seat Inner Belt Assy LH (*1) Spiral Cable
Sub±assy
Separate Type
Front Seat
Back Assy
(Side Squib LH)
SRS Warning Light
Instrument
Panel
Airbag Assy
*1: LHD
*2: RHD
*3: w/ Curtain Shield Airbag 05±1194
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
LOCATION

050WZ±17
05±1190
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
DIAGNOSTIC TROUBLE CODE CHART
If a malfunction code is displayed during the DTC check, check the circuit\
listed for the code in the table below
(Proceed to the page given for that circuit).
DTC No.
(See page)Detection ItemTrouble AreaSRS
Warning Light
B0100/13
(05±1198)

Short in D squib circuit
Horn button assy (squib)

Spiral cable sub±assy

Airbag sensor assy center

Instrument panel wire
ON
B0101/14
(05±1202)

Open in D squib circuit
Horn button assy (squib)

Spiral cable sub±assy

Airbag sensor assy center

Instrument panel wire
ON
B0102/11
(05±1206)

Short in D squib circuit (to ground)
Horn button assy (squib)

Spiral cable sub±assy

Airbag sensor assy center

Instrument panel wire
ON
B0103/12
(05±1210)

Short in D squib circuit (to B+)
Horn button assy (squib)

Spiral cable sub±assy

Airbag sensor assy center

Instrument panel wire
ON
B0105/53
(05±1214)
Short in P squib circuit
Instrument panel passenger airbag assy (squib)

Airbag sensor assy center

Instrument panel wire
ON
B0106/54
(05±1217)
Open in P squib circuit
Instrument panel passenger airbag assy (squib)

Airbag sensor assy center

Instrument panel wire
ON
B0107/51
(05±1220)
Short in P squib circuit (to ground)
Instrument panel passenger airbag assy (squib)

Airbag sensor assy center

Instrument panel wire
ON
B0108/52
(05±1223)
Short in P squib circuit (to B+)
Instrument panel passenger airbag assy (squib)

Airbag sensor assy center

Instrument panel wire
ON
B0110/43
(05±1226)
Short in side squib (RH) circuit
Separate type front seat back assy (squib, RH)

Airbag sensor assy center

Floor wire No.2
Blink
B0111/44
(05±1229)
Open in side squib (RH) circuit
Separate type front seat back assy (squib, RH)

Airbag sensor assy center

Floor wire No.2
Blink
B0112/41
(05±1232)
Short in side squib (RH) circuit
(to ground)
Separate type front seat back assy (squib, RH)

Airbag sensor assy center

Floor wire No.2
Blink
B0113/42
(05±1235)
Short in side squib (RH) circuit (to B+)
Separate type front seat back assy (squib, RH)

Airbag sensor assy center

Floor wire No.2
Blink
B0115/47
(05±1238)
Short in side squib (LH) circuit
Separate type front seat back assy (squib, LH)

Airbag sensor assy center

Floor wire
Blink
B0116/48
(05±1241)
Open in side squib (LH) circuit
Separate type front seat back assy (squib, LH)

Airbag sensor assy center

Floor wire
Blink
B0117/45
(05±1244)
Short in side squib (LH) circuit
(to ground)
Separate type front seat back assy (squib, LH)

Airbag sensor assy center

Floor wire
Blink
B0118/46
(05±1247)
Short in side squib (LH) circuit (to B+)
Separate type front seat back assy (squib, LH)

Airbag sensor assy center

Floor wire
Blink

±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
05±1191
AVENSIS REPAIR MANUAL (RM1018E)
B0121/B0122/
26 (*1)
(05±1250)

Seat belt buckle switch (RH) malfunc-
tion
Front seat inner belt assy RH

Airbag sensor assy center

Floor wire No.2
ON
B0126/B0127/
27 (*2)
(05±1254)
Seat belt buckle switch (LH) malfunc-
tion
Front seat inner belt assy LH

Airbag sensor assy center

Floor wire
ON
B0130/63
(05±1258)
Short in P/T squib (RH) circuit
Front seat outer belt assy RH (squib)

Airbag sensor assy center

Floor wire No.2
Blink
B0131/64
(05±1261)
Open in P/T squib (RH) circuit
Front seat outer belt assy RH (squib)

Airbag sensor assy center

Floor wire No.2
Blink
B0132/61
(05±1264)
Short in P/T squib (RH) circuit
(to ground)
Front seat outer belt assy RH (squib)

Airbag sensor assy center

Floor wire No.2
Blink
B0133/62
(05±1267)
Short in P/T squib (RH) circuit (to B+)
Front seat outer belt assy RH (squib)

Airbag sensor assy center

Floor wire No.2
Blink
B0135/73
(05±1270)
Short in P/T squib (LH) circuit
Front seat outer belt assy LH (squib)

Airbag sensor assy center

Floor wire
Blink
B0136/74
(05±1273)
Open in P/T squib (LH) circuit
Front seat outer belt assy LH (squib)

Airbag sensor assy center

Floor wire
Blink
B0137/71
(05±1276)
Short in P/T squib (LH) circuit
(to ground)
Front seat outer belt assy LH (squib)

Airbag sensor assy center

Floor wire
Blink
B0138/72
(05±1279)
Short in P/T squib (LH) circuit (to B+)
Front seat outer belt assy LH (squib)

Airbag sensor assy center

Floor wire
Blink
B1100/31
(05±1282)
Airbag sensor assy center malfunction

Half connection detection malfunction
Airbag sensor assy center

Airbag sensor assy center connectorON
B1140/32
(05±1284)
Side airbag sensor assy (RH) mal-
function
Side airbag sensor assy RH

Airbag sensor assy center

Floor wire No.2
Blink
B1141/33
(05±1288)
Side airbag sensor assy (LH) malfunc-
tion
Side airbag sensor assy LH

Airbag sensor assy center

Floor wire
Blink
B1148/36
(05±1292)

Front airbag sensor (RH) malfunction
Airbag front RH sensor

Airbag sensor assy center

Engine room main wire

Instrument panel wire
ON
B1149/37
(05±1298)

Front airbag sensor (LH) malfunction
Airbag sensor front LH

Airbag sensor assy center

Engine room main wire

Instrument panel wire
ON
B1153/25
(05±1304)

Seat position airbag sensor assy
malfunction
Seat position airbag sensor

Airbag sensor assy center

Floor wire (LHD)

Floor wire No.2 (RHD)
ON
B1154/38
(*3)
(05±1312)
Airbag sensor rear (RH) malfunction
Airbag sensor rear RH

Side airbag sensor assy RH

Airbag sensor assy center

Floor wire No.2
Blink
B1155/39
(*3)
(05±1317)
Airbag sensor rear (LH) malfunction
Airbag sensor rear LH

Side airbag sensor assy LH

Airbag sensor assy center

Floor wire
Blink