2005 TOYOTA AVENSIS airbag off

D26613
Example:
D25080
Negative (±)
Terminal
± INTRODUCTIONREPAIR INSTRUCTION
01±15
AVENSIS REPAIR MANUAL (RM1018E)
(8) Oil or water should not be put on the front seat outer belt and the front seat outer belt should be
cleaned with the appropriate detergents.
(i) AIRBAG SENSOR ASSEMBLY
(1) Never reuse the airbag sensor assembly involved in a collision where the SRS has deployed.
(2) The connectors to the airbag sensor assembly should be connected or disconnected with the
sensor mounted on the floor. If the connectors are connected or disconnected while the airbag
sensor assembly is not mounted to the floor, it could cause an undesired ignition of the supple-
mental restraint system.
(3) Work must be started after 90 seconds from the time the ignition switch is turned to the ºLOCKº
position and the negative (±) terminal cable is disconnected from the battery, even if only loosen-
ing the set bolts of the airbag sensor assembly.
(j) WIRE HARNESS AND CONNECTOR
(1) The SRS wire harness is integrated with the instrument panel wire harness assembly. All connec-
tors in the system are a standard yellow color. If the SRS wire harness becomes disconnected
or the connector becomes broken due to an accident, etc., repair or replace it.
3. ELECTRONIC CONTROL
(a) REMOVAL AND INSTALLATION OF BATTERY TERMI-
NAL
(1) Before performing electronic work, disconnect the
battery negative (±) terminal cable beforehand in
order to prevent it from shorting and burning out.
(2) When disconnecting and installing the terminal
cable, turn the ignition switch and lighting switch
OFF, and loosen the terminal nut completely. Per-
form these operations without twisting or prying the
terminal.
(3) When the battery terminal cable is removed, the
memories of the clock, radio, DTCs, etc. are erased.
So before removing it, check them and make a note
of their settings.
(4) When the battery negative (±) terminal cable is dis-
connected, memories of various systems are
erased. Therefore, refer to the PRE±CHECK for
each system to make sure whether or not the sys-
tem needs to be initialized after the battery negative

05±1192
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
AVENSIS REPAIR MANUAL (RM1018E) B1160/83
(*3)
(05±1322)

Short in curtain shield squib (RH) cir-
cuit
Curtain 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-
cuit
Curtain 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-
cuit
Curtain shield airbag assy LH (squib)

Airbag sensor assy center

Floor wire
Blink
B1166/88
(*3)
(05±1337)
Open in curtain shield squib (LH) cir-
cuit
Curtain 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) circuit
Horn 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) circuit
Horn 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) circuit
Instrument 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) circuit
Instrument 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
Normal
System normal±OFFNormal
(05±1383)
Voltage source drop
Battery

Airbag sensor assy centerON

± 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.

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.

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.

± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
05±1389
AVENSIS REPAIR MANUAL (RM1018E)
SRS WARNING LIGHT CIRCUIT MALFUNCTION (DOES NOT LIGHT
UP, WHEN IGNITION SWITCH IS TURNED TO ON)
CIRCUIT DESCRIPTION
The SRS warning light is located on the combination meter assy.
When the SRS is normal, the SRS warning light comes on for approx. 6 seconds after the ignition switch
is turned from the LOCK position to the ON position, and then it turns off automatically.
If there is a malfunction in the SRS, the SRS warning light comes on to inform a trouble to the driver.
When between terminal TC and terminal CG of the DLC3 are connected, the DTC is displayed by blinking
the SRS warning light.
WIRING DIAGRAM
See page .
INSPECTION PROCEDURE
1 CHECK SOURCE VOLTAGE
(a) Measure the voltage of the battery.
OK:
Voltage: 10 to 14 V
NG HARNESS BETWEEN BATTERY AND AIRBAG
SENSOR ASSY CENTER, AND CHARGING
SYSTEM
OK
2 CHECK AIR BAG SENSOR ASSY CENTER
(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.
(d) Connect the negative (±) terminal cable to the battery, and turn the ignition switch to the ON position.
(e) Check that the SRS warning light operation.
OK:
The SRS warning light does not come on.
NG REPLACE AIR BAG SENSOR ASSY CENTER
OK
056N4±03

H42518
Combination Meter Assy
Driver Side J/BAirbag Sensor Assy Center
*1: LHD
*2: RHD
*3: Gasoline
*4: 1CD±FTV SRS8
C11B±Y
J16
J/C(*2)
IL 17
C1012
DA6
DDB±Y3
A27
LA
W±B
J15
J/C W±B
(*1)
A
AW±B
W±B
(*1, *4)(*1, *3)(*2) W±B
A
A J17
J/C
A
IO
IK 05±1386
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
SRS WARNING LIGHT CIRCUIT MALFUNCTION (ALWAYS LIGHT
UP, WHEN IGNITION SWITCH IS ACC OR LOCK POSITION)
CIRCUIT DESCRIPTION
The SRS warning light is located on the combination meter assy.
When the SRS is normal, the SRS warning light comes on for approx. 6 seconds after the ignition switch
is turned from the LOCK position to the ON position, and then it turns off automatically.
If there is a malfunction in the SRS, the SRS warning light comes on to inform a trouble to the driver.
When between terminal TC and terminal CG of the DLC3 are connected, the DTC is displayed by blinking
the SRS warning light.
WIRING DIAGRAM
05C64±01

H42517
Airbag Sensor Assy Center
A275
E1
E2 27IG2 2
1
Battery28 4IGN Driver Side J/B
IG2
AM2 I13
Ignition SW
B
4 3 6
Engine Room R/B No.1, Engine Room J/B No.1 AM2B±R
DD
W±BB±W
A27
A27 DD DH5
DAW±B 1 11
B±R1
1
1A
2
1 IE4 IP1
(*3)
(*4)(*1) B±G
Engine Room R/B No.3
Engine Room J/B No.43
DD 4B4A
3 9(*1) B±G (*2)
(*1) B±GB
(*2)
Driver Side J/B
IJ FL MAIN
W±B
*1: Gasoline
*2: 1CD±FTV*3: LHD
*4: RHD B±R
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
05±1383
AVENSIS REPAIR MANUAL (RM1018E)
SOURCE VOLTAGE DROP
CIRCUIT DESCRIPTION
The SRS is equipped with a voltage±increase circuit (DC±DC converter) in the airbag sensor assy center
in case the source voltage drops.
When the battery voltage drops, the voltage±increase circuit (DC±DC converter) functions to increase the
voltage of the SRS to normal voltage.
A malfunction in this circuit is displayed by different form from the other code. The source voltage drop is
indicated when the SRS warning light comes on without showing any DTCs.
Malfunction in this circuit is not recorded in the airbag sensor assy center. The SRS warning light automatical-
ly goes off when the source voltage returns to normal.
DTC No.Diagnosis
(Normal)Source voltage drop
WIRING DIAGRAM
056N1±04