2001 TOYOTA SEQUOIA Page 18

RS0UX±04
± SUPPLEMENTAL RESTRAINT SYSTEMSEAT POSITION SENSOR ASSEMBLY
RS±107
3390 Author: Date:
2005 SEQUOIA (RM1146U)
REPLACEMENT
REPLACEMENT REQUIREMENTS
In the following cases, replace the seat position sensor assembly with a new one.

The seat position sensor assembly has been found to be faulty in troubleshooting.

The seat position sensor assembly has been dropped.
CAUTION:
For removal and installation procedures of the seat position sensor assembly, see page RS±104 and
RS±108. Be sure to follow the correct procedure.

RS0UY±05
H24698
Seat Position
Sensor
Assembly
Seat RailFeeler
Gauge Seat Position Sensor
Assembly Protector
1 mm
(0.039 in.)
RS±108
± SUPPLEMENTAL RESTRAINT SYSTEMSEAT POSITION SENSOR ASSEMBLY
3391 Author: Date:
2005 SEQUOIA (RM1146U)
INSTALLATION
NOTICE:

Never use SRS parts from another vehicle. When re-
placing parts, replace them with new ones.

Never reuse the seat position sensor assembly in-
volved in a collision when the airbag has deployed.

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

When installing the seat position sensor assembly
center, be careful that the SRS wiring does not inter-
fere with other parts and that it is not pinched be-
tween other parts.

After installing, shake the seat position sensor as-
sembly to check that there is no looseness.
1. INSTALL SEAT POSITION SENSOR ASSEMBLY
(a) Using a feeler gauge 1 mm (0.039 in.), install the seat
position sensor assembly.
HINT:
Be sure that a clearance between the seat position sensor as-
sembly and the seat rail is between 0.6 mm (0.023 in.) and 2 mm
(0.079 in.).
(b) Using a torx
) socket wrench, tighten the torx) screw to
install the seat position sensor assembly.
Torque: 8.0 N´m (82 kgf´cm, 71 in.´lbf)
(c) Make sure that a clearance between the seat position
sensor assembly and the seat rail is between 0.6 mm
(0.023 in.) and 2 mm (0.079 in.).
(d) Connect the connector to the seat position sensor assem-
bly.
2. INSTALL SEAT POSITION SENSOR ASSEMBLY PRO-
TECTOR
Install the seat position sensor assembly protector to the seat
position sensor assembly.
3. Separate type (Power adjuster):
INSTALL SEAT CUSHION LOWER SHIELD, SEAT
CUSHION OUTER SHIELD AND SEAT CUSHION IN-
NER SHIELD (SEE PAGE BO±117)
4. Separate type (Power adjuster):
INSTALL SLIDE KNOB AND RECLINING KNOB
(SEE PAGE BO±117)
5. Separate type (Power adjuster):
INSTALL FRONT SEAT ASSEMBLY LH
(SEE PAGE BO±123)

± SUPPLEMENTAL RESTRAINT SYSTEMSEAT POSITION SENSOR ASSEMBLY
RS±109
3392 Author: Date:
2005 SEQUOIA (RM1146U)
6. Separate type (Manual adjuster):
INSTALL SEAT CUSHION OUTER SHIELD
(SEE PAGE BO±130)
7. Separate type (Manual adjuster):
INSTALL VERTICAL ADJUSTER HANDLE
(SEE PAGE BO±130)
8. Separate type (Manual adjuster):
INSTALL FRONT SEAT ASSEMBLY LH
(SEE PAGE BO±134)
9. CONNECT CABLE TO NEGATIVE BATTERY TERMI-
NAL
10. PERFORM INITIALIZATION (SEE PAGE BE±77)
Some system need initialization when disconnecting the cable
from the negative battery terminal.
11. INSPECT SRS WARNING LIGHT (SEE PAGE DI±1137)

RS0UV±06
H23938
± SUPPLEMENTAL RESTRAINT SYSTEMOCCUPANT CLASSIFICATION ECU
RS±111
3394 Author: Date:
2005 SEQUOIA (RM1146U)
REMOVAL
NOTICE:

If the wiring connector of the SRS is disconnected
with the ignition switch in the ON position, DTCs will
be recorded.

Never use SRS parts from another vehicle. When re-
placing the parts, replace them with new ones.

Never reuse an occupant classification ECU if the air-
bag has previously deployed in a collision.
1. PRECAUTION (SEE PAGE RS±1 and RS±3)
2. DISCONNECT CABLE FROM NEGATIVE BATTERY
TERMINAL
Wait for 90 seconds after disconnecting the cable to prevent the
airbag working.
3. REMOVE FRONT SEAT ASSEMBLY RH
(SEE PAGE BO±111)
4. REMOVE OCCUPANT CLASSIFICATION ECU
(a) Disconnect the 2 connectors from the occupant classifi-
cation ECU.
(b) Using a screwdriver, remove the occupant classification
ECU.

RS0UW±06
RS±112
± SUPPLEMENTAL RESTRAINT SYSTEMOCCUPANT CLASSIFICATION ECU
3395 Author: Date:
2005 SEQUOIA (RM1146U)
INSPECTION
1. VEHICLE NOT INVOLVED IN COLLISION
Perform a diagnostic system check (see page DI±1147).
2. VEHICLE INVOLVED IN COLLISION
(a) Perform a diagnostic system check (see page DI±1147).
(b) Even if the airbag was not deployed, perform a visual check for damage to the occupant classification
ECU. If there are any defects mentioned below, replace the occupant classification ECU with a new
one:

Cracks, dents or chips in the case.

Cracks or other damage to the connector.
CAUTION:
For removal and installation procedures of the occupant classification ECU, see page RS±111 and
RS±114. Be sure to follow the correct procedure.

RS0UX±05
± SUPPLEMENTAL RESTRAINT SYSTEMOCCUPANT CLASSIFICATION ECU
RS±113
3396 Author: Date:
2005 SEQUOIA (RM1146U)
REPLACEMENT
REPLACEMENT REQUIREMENTS
In the following cases, replace the occupant classification ECU with a new one.

The occupant classification ECU has been found to be faulty in troubleshooting.

The occupant classification ECU has been dropped.
CAUTION:
For removal and installation procedures of the occupant classification ECU, see page RS±111 and
RS±114. Be sure to follow the correct procedure.

RS0UY±06
H23939
RS±114
± SUPPLEMENTAL RESTRAINT SYSTEMOCCUPANT CLASSIFICATION ECU
3397 Author: Date:
2005 SEQUOIA (RM1146U)
INSTALLATION
NOTICE:

Never use SRS parts from another vehicle. When re-
placing parts, replace them with new ones.

Never reuse the occupant classification ECU in-
volved in a collision when the airbag has deployed.

If the occupant classification ECU center has been
dropped, or there are any cracks, dents or other de-
fects in the case, bracket or connector, replace it with
a new one.

When installing the seat position sensor assembly
center, be careful that the SRS wiring does not inter-
fere with other parts and that it is not pinched be-
tween other parts.
1. INSTALL OCCUPANT CLASSIFICATION ECU
(a) Install the occupant classification ECU.
(b) Connect the 2 connectors to the occupant classification
ECU.
2. INSTALL FRONT SEAT ASSEMBLY RH
(SEE PAGE BO±123)
3. CONNECT CABLE TO NEGATIVE BATTERY TERMI-
NAL
4. PERFORM INITIALIZATION (SEE PAGE BE±77)
Some system need initialization when disconnecting the cable
from the negative battery terminal.
5. INITIALIZE OCCUPANT CLASSIFICATION ECU
(SEE PAGE DI±1137)
6. INSPECT SRS WARNING LIGHT (SEE PAGE DI±1137)

H23940Claw
RS11V±01
RS±116
± SUPPLEMENTAL RESTRAINT SYSTEMRSCA OFF SWITCH
3399 Author: Date:
2005 SEQUOIA (RM1146U)
REMOVAL
1. PRECAUTION (SEE PAGE RS±1 and RS±3)
2. DISCONNECT CABLE FROM NEGATIVE BATTERY
TERMINAL
Wait for 90 seconds after disconnecting the cable to prevent the
airbag working.
3. REMOVE LOWER FINISH PANEL (SEE PAGE
BO±89)
4. REMOVE SWITCH BASE
(a) Using a screwdriver, release the 3 claws and remover the
switch base.
HINT:
Tape up the screwdriver tip before use.
(b) Disconnect the connectors.