2003 TOYOTA AVENSIS warning light

H43003
H42615
60±18
±
SUPPLEMENTAL RESTRAINT SYSTEM HORN BUTTON ASSY
AVENSIS REPAIR MANUAL (RM1018E)
4. INSTALL HORN BUTTON ASSY
(a) Support the horn button assy with the hand as shown in the illustration.
(b) Connect the airbag connectors.
(c) Connect the horn connector.
(d) Confirm that the circumference groove of the torx screw fits in the screw case, and place the horn button assy onto
the steering wheel assy.
(e) Using a torx socket wrench (T 30), install the 2 screws. Torque: 8.8 N
m (90 kgf
cm, 78 in.
lbf)
5.INSPECT HORN BUTTON ASSY (See page 60±11)
(a) Do a visual check which includes the following items with the horn button assy installed in the vehicle:
Cuts, minute cracks or marked discoloration on the horn
button assy top surface and in the grooved portion.
6.INSPECT SRS WARNING LIGHT (See page 05±1184)
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600K4±01
H42660
H42661
H42665
60±54
±
SUPPLEMENTAL RESTRAINT SYSTEM INSTRUMENT PANEL AIR BAG ASSY
AVENSIS REPAIR MANUAL (RM1018E)
REPLACEMENT
1.PRECAUTION (See page 60±1)
2.DISCONNECT BATTERY NEGATIVE TERMINAL (See page 60±1)
3. REMOVE INSTRUMENT PANEL HOLE COVER
(a) Using a screwdriver, remove the 2 instrument panel hole cover. 4. REMOVE INSTRUMENT PANEL AIR BAG ASSY
(a) Using a screwdriver disconnect the airbag connector.
(b) Remove the 4 bolts, 2 nuts and the instrument panel air-bag assy.
5. INSTALL INSTRUMENT PANEL AIR BAG ASSY
(a) Install the instrument panel airbag assy.
(b) Connect the airbag connector.
(c) Install the 4 bolts and the 2 nuts. Torque: 18.0 N
m (184 kgf
cm, 13 ft
lbf)
(d) Install the instrument panel hole cover.
6.INSPECT INSTRUMENT PANEL AIR BAG ASSY (See page 60±11)
7.INSPECT SRS WARNING LIGHT (See page 05±1184)
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600JY±01
H42642
H42643
H42644
Hook
Airbag DoorHook
Front
±
SUPPLEMENTAL RESTRAINT SYSTEM INSTRUMENT PANEL PASSENGER AIR BAG ASSY
60±29
AVENSIS REPAIR MANUAL (RM1018E)
REPLACEMENT
1.PRECAUTION (See page 60±1)
2.DISCONNECT BATTERY NEGATIVE TERMINAL (See page 60±1)
3.REMOVE GLOVE COMPARTMENT DOOR ASSY (See page 71±11)
4. DISCONNECT PASSENGER AIRBAG CONNECTOR
(a) Remove the passenger airbag connector clip.
(b) Disconnect the passenger airbag connector.
5. REMOVE INSTRUMENT PANEL SUB±ASSY UPPER W/INSTR PNL PASS L/DOOR AIR BAG ASSY (See page 71±11)
6. REMOVE INSTRUMENT PANEL PASSENGER AIRBAG ASSY
(a) Remove the 2 screws.
(b) Release the rear side wall of the airbag door from the hook by slightly deflecting it and roll the instrument panel
passenger airbag assy forward.
(c) Release the front side wall of the airbag door from the oth-
er hook and remove the instrument panel passenger air-
bag assy.
7. INSTALL INSTRUMENT PANEL PASSENGER AIR BAG ASSY
8.INSPECT INSTRUMENT PANEL PASSENGER AIR BAG ASSY (See page 60±11)
9. INSTALL INSTRUMENT PANEL SUB±ASSY UPPER W/INSTR PNL PASS L/DOOR AIR BAG ASSY (See page 71±11)
10.INSPECT SRS WARNING LIGHT (See page 05±1184)
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600AB±04
H42640
60±70
±
SUPPLEMENTAL RESTRAINT SYSTEM SEAT POSITION AIR BAG SENSOR
AVENSIS REPAIR MANUAL (RM1018E)
REPLACEMENT
HINT:
Replacement procedure of the RH side is the same as that of the LH side.
1.PRECAUTION (See page 60±1)
2.DISCONNECT BATTERY NEGATIVE TERMINAL (See page 60±1)
3.REMOVE SEAT TRACK COVER LH (See page 72±16)
4.REMOVE SEAT TRACK BRACKET COVER INNER LH (See page 72±16)
5.REMOVE FRONT SEAT ASSY LH (See page 72±16) 6. REMOVE SEAT POSITION AIR BAG SENSOR
(a) Disconnect the connector of the seat position airbag sen-sor.
(b) Using a torx socket wrench (T30), remove the torx screw and seat position airbag sensor.
7. INSTALL SEAT POSITION AIR BAG SENSOR
(a) Check that the ignition switch is off.
(b) Check that the battery negative (±) terminal is disconnected.
NOTICE:
Do not start the operation for 90 seconds after removing the terminal.
(c) Using a torx socket wrench (T30), install the seat position airbag sen\
sor with the torx screw. Torque: 8.0 N
m (82 kgf
cm, 71 in.
lbf)
NOTICE:

If the seat position airbag sensor has been dropped, or there are any cracks, dents or other de-
fects in the case, bracket or connector, replace the seat position airbag sensor with a new one.

When installing the seat position airbag sensor, take care that the SRS wiring does not interfere
with other parts and is not pinched between other parts.
(d) Connect the connector of the seat position airbag sensor.
(e) Check that no play is identified.
8.INSTALL FRONT SEAT ASSY LH (See page 72±16)
Torque: 37 N
m (375 kgf
cm, 27 ft
lbf)
9.SRS WARNING LIGHT (See page 05±1184)
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600A7±03
H42767
60±66
±
SUPPLEMENTAL RESTRAINT SYSTEM SIDE AIR BAG SENSOR ASSY LH
AVENSIS REPAIR MANUAL (RM1018E)
REPLACEMENT
HINT:
Replacement procedure of the RH side is the same as that for with LH side.
1.PRECAUTION (See page 60±1)
2.DISCONNECT BATTERY NEGATIVE TERMINAL (See page 60±1)
3.REMOVE FRONT DOOR SCUFF PLATE LH (See page 76±36)
4.REMOVE REAR DOOR SCUFF PLATE LH (See page 76±36)
5.REMOVE FRONT DOOR WEATHERSTRIP LH (See page 76±36)
6.REMOVE REAR DOOR WEATHERSTRIP LH (See page 76±36)
7.REMOVE CENTER PILLAR GARNISH LOWER LH (See page 76±36)
8.REMOVE FRONT SEAT OUTER BELT ASSY LH (See page 61±7) 9. REMOVE SIDE AIR BAG SENSOR ASSY LH
(a) Remove the bolt and the side airbag sensor assy LH.
(b) Disconnect the connector from the side airbag sensorassy LH.
10. INSTALL SIDE AIR BAG SENSOR ASSY LH
(a) Check that the ignition switch is off.
(b) Check that the battery negative (±) terminal is disconnected.
NOTICE:
Do not start the operation for 90 seconds after removing the terminal.
(c) Install the side airbag sensor assy LH with the nut. Torque: 8.0 N
m (82 kgf
cm, 70 in.
lbf)
NOTICE:

If the side airbag sensor assy LH has been dropped, or there are any cra\
cks, dents or other de-
fects in the case, bracket or connector, replace the side airbag sensor assy LH with a new one.

When installing the side airbag sensor assy LH, take care that the SRS wiring\
does not interfere
with other parts and is not pinched between other parts.
(d) Connect the connector of the side airbag sensor assy LH.
(e) Check that no play is identified.
11.INSTALL FRONT SEAT OUTER BELT ASSY LH (See page 61±7)
12.INSPECT SRS WARNING LIGHT (See page 05±1184)
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H42637
H42638Marks
±
SUPPLEMENTAL RESTRAINT SYSTEM SPIRAL CABLE SUB±ASSY
60±27
AVENSIS REPAIR MANUAL (RM1018E)
13. INSTALL SPIRAL CABLE SUB±ASSY
(a) Set the turn signal switch to the neutral position.
NOTICE:
Make sure of the neutral position since the pin of the turn signal switc\
h may be snapped.
(b) Install the spiral cable sub±assy.
NOTICE:
When replacing the spiral cable sub±assy with a new one, remove the l\
ock pin before installing the
steering wheel assy.
(c) Connect the airbag connector and the connector.
(d) Install the steering column cover with the 3 screws.
14. ADJUST SPIRAL CABLE SUB±ASSY
(a) Check that the ignition switch is off.
(b) Check that the battery negative terminal is disconnected.
NOTICE:
Do not start the operation for 90 seconds after removing
the terminal.
(c) Turn the spiral cable sub±assy counterclockwise slowlyby hand until it feels firm.
(d) Then rotate the spiral cable sub±assy clockwise about 2.5 turns to align the marks.
HINT:
The spiral cable sub±assy will rotate about 2.5 turns to both left
and right of the center.
15.INSTALL STEERING COLUMN COVER SUB±ASSY LOWER (See page 50±9)
16.INSTALL INSTRUMENT PANEL AIR BAG ASSY (See page 60±54)
17.INSTALL STEERING WHEEL ASSY (See page 50±9)
18. INSPECT STEERING WHEEL CENTER POINT
19.INSTALL HORN BUTTON ASSY (See page 60±17)
20.INSPECT HORN BUTTON ASSY (See page 60±11)
21.INSPECT SRS WARNING LIGHT (See page 05±1184)
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600JU±01
±
SUPPLEMENTAL RESTRAINT SYSTEMSUPPLEMENTAL RESTRAINT SYSTEM
60±1
AVENSIS REPAIR MANUAL (RM1018E)
SUPPLEMENTAL RESTRAINT SYSTEM
PRECAUTION
CAUTION:

AVENSIS is equipped with SRS, which comprises of a driver airbag, front passeng\
er airbag,
side airbag, curtain shield airbag and driver knee airbag. Failure to carry \
out service operations
in the correct sequence could cause the SRS to unexpectedly deploy during \
servicing, possibly
leading to serious accident. Further, if a mistake is made in servicing the SRS, it is possible that
the SRS may fail to operate when required. Before performing servicing (in\
cluding removal or
installation of parts, inspection or replacement), be sure to read the \
following items carefully,
then follow the correct procedures indicated in the repair manual.

Work must be started 90 seconds after the ignition switch is turned to the º\
LOCKº position and
the negative (±) terminal cable is disconnected from the battery.
(The SRS is equipped with a back±up power source so that if work is started wi\
thin 90 seconds
after disconnecting the negative (±) terminal cable of the battery, the SRS may be deployed.)

Do not expose the horn button assy, instrument panel passenger airbag assy, instrument panel
airbag assy, airbag sensor assy center, airbag front sensor, front seat airbag assy, side airbag
sensor assy, curtain shield airbag assy, airbag sensor rear or seat position airbag sensor di-
rectly to hot air or flames.
NOTICE:

Malfunction symptoms of the SRS are difficult to confirm, so DTCs are th\
e most important in-
formation source of information when troubleshooting. When troubleshooting the SRS, always
inspect DTCs before disconnecting the battery.

Even in the case of a minor collision when the SRS does not deploy, the horn button assy, instru-
ment panel passenger airbag assy, instrument panel airbag assy, airbag sensor assy center,
airbag front sensor, front seat airbag assy, side airbag sensor assy, curtain shield airbag assy,
airbag sensor rear and seat position sensor must be inspected (See page 60±11).

Before repairs work, remove the airbag sensor if any kind of shock is likely to occur to the sen-
sor during operation.

Never use SRS parts from another vehicle. When replacing the parts, repl\
ace them with new
ones.

Never disassemble nor repair the horn button assy, instrument panel passenger airbag assy,
instrument panel airbag assy, airbag sensor assy center, airbag front sensor, front seat airbag
assy, side airbag sensor assy, curtain shield airbag assy, airbag sensor rear or seat position
airbag sensor in order to reuse it.

If the horn button assy, instrument panel passenger airbag assy, instrument panel airbag assy,
airbag sensor assy center, airbag front sensor, front seat airbag assy, side airbag sensor assy,
curtain shield airbag assy, airbag sensor rear or seat position airbag sensor has been dropped,
or if there are any cracks, dents or other defects in the case, bracket \
or connector, replace it
with a new one.

Use a volt/ohmmeter with high impedance (10 k
/V minimum) for troubleshooting the electrical
circuits circuits.

Information labels are attached to the periphery of the SRS components. Follow the instruc-
tions the notice.

After work on the SRS is completed, perform the SRS warning light check \
(See page 05±1184).
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610CK±02
61±2
±
SEAT BELT SEAT BELT WARNING SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
PROBLEM SYMPTOMS TABLE
SymptomSuspected AreaSee Page
Driver side seat belt warning lamp does not light up
1. Fuse
2. Combination meter
3. Airbag sensor assy center
4. Front seat inner belt assy LH
5. Wire harness

71±21
60±62 61±3

Passenger side seat belt warning lamp does not light up
1. Fuse
2. Passenger side seat belt warning lamp assy
3. Front seat inner belt assy RH
4. Wire harness

61±3
61±3

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