2005 TOYOTA AVENSIS Circuit
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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
Page 1225 of 5135
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.
Page 1229 of 5135
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 circuitHorn button assy (squib)
Spiral cable sub±assy
Airbag sensor assy center
Instrument panel wire
ON
B0101/14
(05±1202)
Open in D squib circuitHorn 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 circuitInstrument panel passenger airbag assy (squib)
Airbag sensor assy center
Instrument panel wire
ON
B0106/54
(05±1217) Open in P squib circuitInstrument 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) circuitSeparate 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) circuitSeparate 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) circuitSeparate type front seat back assy (squib, LH)
Airbag sensor assy center
Floor wire
Blink
B0116/48
(05±1241) Open in side squib (LH) circuitSeparate 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
Page 1230 of 5135
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
05±1191
AVENSIS REPAIR MANUAL (RM1018E)
B0121/B0122/
26 (*1)
(05±1250)
Seat belt buckle switch (RH) malfunc-
tionFront 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-
tionFront seat inner belt assy LH
Airbag sensor assy center
Floor wire
ON
B0130/63
(05±1258) Short in P/T squib (RH) circuitFront 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) circuitFront 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) circuitFront seat outer belt assy LH (squib)
Airbag sensor assy center
Floor wire
Blink
B0136/74
(05±1273) Open in P/T squib (LH) circuitFront 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 malfunctionAirbag sensor assy center
Airbag sensor assy center connectorON
B1140/32
(05±1284) Side airbag sensor assy (RH) mal-
functionSide airbag sensor assy RH
Airbag sensor assy center
Floor wire No.2
Blink
B1141/33
(05±1288) Side airbag sensor assy (LH) malfunc-
tionSide airbag sensor assy LH
Airbag sensor assy center
Floor wire
Blink
B1148/36
(05±1292)
Front airbag sensor (RH) malfunctionAirbag front RH sensor
Airbag sensor assy center
Engine room main wire
Instrument panel wire
ON
B1149/37
(05±1298)
Front airbag sensor (LH) malfunctionAirbag sensor front LH
Airbag sensor assy center
Engine room main wire
Instrument panel wire
ON
B1153/25
(05±1304)
Seat position airbag sensor assy
malfunctionSeat 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) malfunctionAirbag 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) malfunctionAirbag sensor rear LH
Side airbag sensor assy LH
Airbag sensor assy center
Floor wire
Blink
Page 1231 of 5135
05±1192
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
AVENSIS REPAIR MANUAL (RM1018E) B1160/83
(*3)
(05±1322)
Short in curtain shield squib (RH) cir-
cuitCurtain shield airbag assy RH (squib)
Airbag sensor assy center
Floor wire No.2
Blink
B1161/84
(*3)
(05±1325) Open in curtain shield squib (RH) cir-
cuitCurtain shield airbag assy RH (squib)
Airbag sensor assy center
Floor wire No.2
Blink
B1162/81
(*3)
(05±1328) Short in curtain shield squib (RH) cir-
cuit (to ground)Curtain shield airbag assy RH (squib)
Airbag sensor assy center
Floor wire No.2
Blink
B1163/82
(*3)
(05±1331) Short in curtain shield squib (RH) cir-
cuit (to B+)Curtain shield airbag assy RH (squib)
Airbag sensor assy center
Floor wire No.2
Blink
B1165/87
(*3)
(05±1334) Short in curtain shield squib (LH) cir-
cuitCurtain shield airbag assy LH (squib)
Airbag sensor assy center
Floor wire
Blink
B1166/88
(*3)
(05±1337) Open in curtain shield squib (LH) cir-
cuitCurtain shield airbag assy LH (squib)
Airbag sensor assy center
Floor wire
Blink
B1167/85
(*3)
(05±1340) Short in curtain shield squib (LH) cir-
cuit (to ground)Curtain shield airbag assy LH (squib)
Airbag sensor assy center
Floor wire
Blink
B1168/86
(*3)
(05±1343) Short in curtain shield squib (LH) cir-
cuit (to B+)Curtain shield airbag assy LH (squib)
Airbag sensor assy center
Floor wire
Blink
B1180/17
(05±1346)
Short in D squib (2nd step) circuitHorn button assy (squib, 2nd step)
Spiral cable sub±assy
Airbag sensor assy center
Instrument panel wire
ON
B1181/18
(05±1350)
Open in D squib (2nd step) circuitHorn button assy (squib, 2nd step)
Spiral cable sub±assy
Airbag sensor assy center
Instrument panel wire
ON
B1182/19
(05±1354)
Short in D squib (2nd step) circuit (to
ground)Horn button assy (squib, 2nd step)
Spiral cable sub±assy
Airbag sensor assy center
Instrument panel wire
ON
B1183/22
(05±1358)
Short in D squib (2nd step) circuit (to
B+)Horn button assy (squib, 2nd step)
Spiral cable sub±assy
Airbag sensor assy center
Instrument panel wire
ON
B1185/57
(05±1362) Short in P squib (2nd step) circuitInstrument panel passenger airbag assy (squib, 2nd step)
Airbag sensor assy center
Instrument panel wire
ON
B1186/58
(05±1365) Open in P squib (2nd step) circuitInstrument panel passenger airbag assy (squib, 2nd step)
Airbag sensor assy center
Instrument panel wire
ON
B1187/55
(05±1368) Short in P squib (2nd step) circuit (to
ground)Instrument panel passenger airbag assy (squib, 2nd step)
Airbag sensor assy center
Instrument panel wire
ON
B1188/56
(05±1371) Short in P squib (2nd step) circuit (to
B+)Instrument panel passenger airbag assy (squib, 2nd step)
Airbag sensor assy center
Instrument panel wire
ON
B1650/B1651/
B1652/B1653/
49
(05±1374) Short in knee squib circuit
Open in knee squib circuit
Short in knee squib circuit (to ground)
Short in knee squib circuit (to B+)Instrument panel airbag assy (squib)
Instrument panel wire
Floor wire No.2
Airbag sensor assy center
ON
NormalSystem normal±OFFNormal
(05±1383) Voltage source dropBattery
Airbag sensor assy centerON
Page 1232 of 5135
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
05±1193
AVENSIS REPAIR MANUAL (RM1018E)
*1: RHD, *2: LHD, *3: w/ Curtain Shield Airbag
HINT:
When the SRS warning light remains on and the DTC is the normal code, a voltage source drop is sus-
pected.
This malfunction is not stored in memory by the airbag sensor assy center and if the power source
voltage returns to normal, the SRS warning light will automatically go off.
If a code not listed on the displayed chart, the airbag sensor assy center may be failed.
In the case of any malfunction concerning any open circuit, short to ground, or short to B+ due to any
squib, another malfunction code may not be detected. In this case, repair the malfunction currently
indicated and then perform malfunction diagnosis again. Another malfunction code may then be de-
tected.
Page 1233 of 5135
05C5V±01
3
2
145678
910111213141516
DLC3
A04550
C93955
05±1184
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
PRE±CHECK
1.DIAGNOSIS SYSTEM
(a)Check the DLC3. (1)The vehicle's ECM conforms to ISO 9141±2 forcommunication protocol. The terminal arrangement
of the DLC3 complies with ISO 15031±3 and meets
the ISO 9141±2 format.
Terminal No.Connection/Voltage or ResistanceCondition
7Bus + Line/Pulse generationDuring Transmission
4Chassis Ground Body Ground/1 or lessAlways
16Battery Positive Body Ground/9 ± 14 VAlways
HINT:
If the display shows UNABLE TO CONNECT TO VEHICLE
when you connect the cable of the hand±held tester to the
DLC3, turn the ignition switch to the ON position and operate
the hand±held tester, there is a problem either on the vehicle
side or tool side.
If communication is normal when the tool is connected to
another vehicle, inspect the DLC3 on the original vehicle.
If communication is still not possible when the tool is con-
nected to another vehicle, the problem is probably in the
tool itself, so consult the Service Department listed in the
tool's instruction manual.
2.SRS WARNING LIGHT CHECK
(a)Turn the ignition switch to the ON position, and check that the SRS warning light comes on.
(b)Check that the SRS warning light goes off after approx.
6 seconds.
HINT:
When the ignition switch is ON position and the SRS
warning light remains on or flashes, the airbag sensor
assy center detects a malfunction code.
When the SRS warning light comes on even when the
ignition switch is in the LOCK position, trouble in the pow-
er source or combination meter assy is suspected. Pro-
ceed to ºSRS warning light circuit malfunction (Always
lights up, when ignition switch is LOCK position)º on page
05±1386.
When the ignition switch is turned from the LOCK to ON
position, the SRS warning light does not come on. Pro-
ceed to ºSRS warning light circuit malfunction (Does not
light up, when ignition switch is turned ON)º on page
05±1389.
Page 1234 of 5135
H40173CG
TC
H13050
Normal Code (w/o Past Trouble Code)
Normal Code (w/ Past Trouble Code) Malfunctioning Code
(Example Code 11 and 31) 0.25
ON
OFF
0.750.25
0.25
ON
OFF
0.52.54.0
1.5 0.5 Repeat
DTC31
DTC11
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
05±1185
AVENSIS REPAIR MANUAL (RM1018E)
3.DTC CHECK (USING SST CHECK WIRE)
(a)Output the DTCs (Present trouble code).
(1)Turn the ignition switch to the ON position, and wait
for approx. 60 seconds.
(2)Using SST, connect the TC and CG of the DLC3.
SST09843±18040
NOTICE:
Pay attention to the terminal connecting position to avoid
a malfunction.
(b)Output the DTCs (Past trouble code).
(1)Using SST, connect the TC and CG of the DLC3.
SST09843±18040
NOTICE:
Pay attention to the terminal connecting position to avoid
a malfunction. (2)Turn the ignition switch to the ON position, and wait
for approx. 60 seconds.
(c)Read the DTCs. (1)Read the DTC by counting the blinking times. Forexample, the blinking patterns for normal code,
code 11 and code 31 are shown in the illustration.
Normal code indication (w/o past trouble
code)
The light blinks twice per second.
Normal code indication (w/ past trouble code)
When the past trouble code is stored in the
airbag sensor assy center, the blinks only
once a second.
Malfunction code indication
The first blinking indicates the first DTC. Se-
cond blinking occurs after 1.5±second of
pause.
If there are 2 or more codes, there will be a 2.5±second pause
between each code. After all codes are shown, there will be a
4.0±second pause, and they will all be repeated.
HINT:
If 2 or more malfunctions are found, the indication starts
from the smaller numbered code.
If DTCs are indicated without a connection of the termi-
nals, proceed to the ºTC terminal circuitº on page
05±1391.
(d) Clear the DTCs. (1) When the ignition switch is turned off, the DTCs are cleared.
HINT:
Depending on the DTC, the code might not be cleared by turning off the ignition switch. In this case, proceed
to the next step.