2001 TOYOTA SEQUOIA DLC3 Ts

H01021
H10600H16840H24653
Airbag
Sensor
Assembly
CG
TC
C D
DLC3
DTC 57
Curtain Shield
Airbag RH Squib
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±1443
1637 Author: Date:
2005 SEQUOIA (RM1146U)
9 Replace curtain shield airbag assembly RH (curtain shield airbag RH squib).
PREPARATION:
(a) Replace the curtain shield airbag assembly RH (see page
RS±71).
HINT:
Perform the inspection using parts from a normal vehicle if pos-
sible.
(b) Connect the connectors to the airbag sensor assembly.
(c) Connect the negative (±) terminal cable to the battery,
and wait for at least 2 seconds.
CHECK:
(a) Turn the ignition switch to the ON position, and wait for at
least 60 seconds.
(b) Clear the DTCs stored in memory (see page DI±1147).
(c) Turn the ignition switch to the LOCK position.
(d) Turn the ignition switch to the ON position, and wait for at
least 60 seconds.
(e) Check the DTCs (see page DI±1147).
OK:
DTC 57 is not output.
HINT:
Codes other than DTC 57 may be output at this time, but they
are not related to this check.
NG Replace airbag sensor assembly
(see page RS±82).
OK
END

H01018H10600H16841H24654
DTC 58 DLC3
TC CG Curtain Shield
Airbag LH Squib
DCAirbag
Sensor
Assembly
DI±1454
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1648 Author: Date:
2005 SEQUOIA (RM1146U)
9 Replace curtain shield airbag assembly LH (curtain shield airbag LH squib).
PREPARATION:
(a) Replace the curtain shield airbag assembly LH (see page
RS±71).
HINT:
Perform the inspection using parts from a normal vehicle if pos-
sible.
(b) Connect the connectors to the airbag sensor assembly.
(c) Connect the negative (±) terminal cable to the battery,
and wait for at least 2 seconds.
CHECK:
(a) Turn the ignition switch to the ON position, and wait for at
least 60 seconds.
(b) Clear the DTCs stored in memory (see page DI±1147).
(c) Turn the ignition switch to the LOCK position.
(d) Turn the ignition switch to the ON position, and wait for at
least 60 seconds.
(e) Check the DTCs (see page DI±1147).
OK:
DTC 58 is not output.
HINT:
Codes other than DTC 58 may be output at this time, but they
are not related to this check.
NG Replace airbag sensor assembly
(see page RS±82).
OK
END

H10600H01021H01086H24655
DLC3
CG
TC
P/T Squib RH
C DAirbag
Sensor
Assembly
DTC 73
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±1465
1659 Author: Date:
2005 SEQUOIA (RM1146U)
9 Replace front seat outer belt RH (P/T squib RH).
PREPARATION:
(a) Replace the front seat outer belt RH (see page BO±163).
HINT:
Perform the inspection using parts from a normal vehicle if pos-
sible.
(b) Connect the connectors to the airbag sensor assembly.
(c) Connect the negative (±) terminal cable to the battery,
and wait for at least 2 seconds.
CHECK:
(a) Turn the ignition switch to the ON position, and wait for at
least 60 seconds.
(b) Clear the DTCs stored in memory (see page DI±1147).
(c) Turn the ignition switch to the LOCK position.
(d) Turn the ignition switch to the ON position, and wait for at
least 60 seconds.
(e) Check the DTCs (see page DI±1147).
OK:
DTC 73 is not output.
HINT:
Codes other than DTC 73 may be output at this time, but they
are not related to this check.
NG Replace airbag sensor assembly
(see page RS±82).
OK
END

H10600H01018H01087H24656
Airbag
Sensor
Assembly P/T Squib LH
DLC3
TC CG
DTC 74 C D
DI±1476
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1670 Author: Date:
2005 SEQUOIA (RM1146U)
9 Replace front seat outer belt LH (P/T squib LH).
PREPARATION:
(a) Replace the front seat outer belt LH (see page BO±163).
HINT:
Perform the inspection using parts from a normal vehicle if pos-
sible.
(b) Connect the connectors to the airbag sensor assembly.
(c) Connect the negative (±) terminal cable to the battery,
and wait for at least 2 seconds.
CHECK:
(a) Turn the ignition switch to the ON position, and wait for at
least 60 seconds.
(b) Clear the DTCs stored in memory (see page DI±1147).
(c) Turn the ignition switch to the LOCK position.
(d) Turn the ignition switch to the ON position, and wait for at
least 60 seconds.
(e) Check the DTCs (see page DI±1147).
OK:
DTC 74 is not output.
HINT:
Codes other than DTC 74 may be output at this time, but they
are not related to this check.
NG Replace airbag sensor assembly
(see page RS±82).
OK
END

± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±1487
1681 Author: Date:
2005 SEQUOIA (RM1146U)
3 Perform zero point calibration.
(a) Connect the hand±held tester to the DLC3.
(b) Turn the ignition switch to the ON position.
(c) Using the hand±held tester, perform ºZero point calibrationº (see page DI±1128).
OK:
The ºCOMPLETEDº is displayed on the tester screen.
NG Go to step 5.
OK
4 Perform sensitivity check.
Using the hand±held tester, perform ºSensitivity checkº (see page DI±1128).
OK:
Standard value: 27 to 33 kg (59.52 to 72.75 lb)
NG Go to step 5.
OK
END

DI±1488
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1682 Author: Date:
2005 SEQUOIA (RM1146U)
5 Retighten front seat assembly RH bolt (see page BO±111, BO±125).
(a) Turn the ignition switch to the LOCK position.
(b) Loosen the 4 installation bolts of the front seat assembly RH.
(c) Tighten the 4 installation bolts of the front seat assembly RH to the specified torque.
Torque: 37 N´m (380 kgf´cm, 27 ft´lbf)
NEXT
6 Perform zero point calibration.
(a) Connect the hand±held tester to the DLC3.
(b) Turn the ignition switch to the ON position.
(c) Using the hand±held tester, perform ºZero point calibrationº (see page DI±1128).
OK:
The ºCOMPLETEDº is displayed on the tester screen.
NG Go to step 8.
OK
7 Perform sensitivity check.
Using the hand±held tester, perform ºSensitivity checkº (see page DI±1128).
OK:
Standard value: 27 to 33 kg (59.52 to 72.75 lb)
NG Go to step 8.
OK
END

DI±1490
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1684 Author: Date:
2005 SEQUOIA (RM1146U)
10 Replace occupant classification ECU.
(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) Replace the occupant classification ECU (see page RS±111).
HINT:
Perform the inspection using parts from a normal vehicle if possible.
NEXT
11 Perform zero point calibration.
(a) Connect the negative (±) terminal cable to the battery.
(b) Connect the hand±held tester to the DLC3.
(c) Turn the ignition switch to the ON position.
(d) Using the hand±held tester, perform ºZero point calibrationº (see page DI±1128).
OK:
The ºCOMPLETEDº is displayed on the tester screen.
NEXT
12 Perform sensitivity check.
Using the hand±held tester, perform ºSensitivity checkº (see page DI±1128).
OK:
Standard value: 27 to 33 kg (59.52 to 72.75 lb)
NEXT
END

± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±1491
1685 Author: Date:
2005 SEQUOIA (RM1146U)
SRS Warning Light Circuit Malfunction (Always light up, when
DTC is not output)
CIRCUIT DESCRIPTION
The SRS warning light is located on the combination meter.
When the SRS is normal, the SRS warning light comes on for approximately 6 seconds after the ignition
switch is turned from the LOCK position to ON position, and then goes off automatically.
If there is a malfunction in the SRS, the SRS warning light comes on to inform the driver of a problem.
When terminals TC and CG of the DLC3 are connected, the DTCs are displayed by blinking the SRS warning
light.
DIDHU±01