2001 TOYOTA SEQUOIA DLC3 Ts

± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±1349
1543 Author: Date:
2005 SEQUOIA (RM1146U)
2 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
3 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.
NEXT
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)
NEXT
END

± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±1351
1545 Author: Date:
2005 SEQUOIA (RM1146U)
2 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
3 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.
NEXT
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)
NEXT
END

H01003H10600H01075H23352
D Squib
Spiral
CableAirbag
Sensor
Assembly
DTC 51
DLC3
TC CG
FEDC
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±1359
1553 Author: Date:
2005 SEQUOIA (RM1146U)
9 Replace steering wheel pad (D squib).
PREPARATION:
(a) Replace the steering wheel pad (see page RS±21).
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 51 is not output.
HINT:
Codes other than DTC 51 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

H10600 H01024H01076H23357
P Squib
Airbag
Sensor
Assembly
DTC 52 DLC3
TC CG
DC
DI±1380
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1574 Author: Date:
2005 SEQUOIA (RM1146U)
7 Replace front passenger airbag assembly (P squib).
PREPARATION:
(a) Replace the front passenger airbag assembly (see page
RS±33).
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 52 is not output.
HINT:
Codes other than DTC 52 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

H01003H10600H01077H23361
Spiral
CableAirbag
Sensor
Assembly
DTC 53
DLC3
TC
CG
D Squib
(Dual stage ±
2nd step)
E F
C D
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±1391
1585 Author: Date:
2005 SEQUOIA (RM1146U)
9 Replace steering wheel pad (D squib, dual stage ± 2nd step).
PREPARATION:
(a) Replace the steering wheel pad (see page RS±21).
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 53 is not output.
HINT:
Codes other than DTC 53 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

H10600H01024H01078H23362
Airbag
Sensor
Assembly
DTC 54 DLC3
TC CG
P Squib
(Dual stage ±
2nd step)
DC
DI±1412
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1606 Author: Date:
2005 SEQUOIA (RM1146U)
7 Replace front passenger airbag assembly (P squib, dual stage ± 2nd step).
PREPARATION:
(a) Replace the front passenger airbag assembly (see page
RS±33).
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 54 is not output.
HINT:
Codes other than DTC 54 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

H01021
H10600H16838H24651
DTC 55 DLC3
TC CG
Side Squib RH
C DAirbag
Sensor
Assembly
DI±1422
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1616 Author: Date:
2005 SEQUOIA (RM1146U)
7 Replace side airbag assembly RH (side squib RH).
PREPARATION:
(a) Replace the side airbag assembly RH (see page
RS±46, RS±61).
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 55 is not output.
HINT:
Codes other than DTC 55 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

H01018
H10600H16839H24652
Airbag
Sensor
Assembly
DTC 56 DLC3
TC CG
Side Squib LH
C D
DI±1432
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1626 Author: Date:
2005 SEQUOIA (RM1146U)
7 Replace side airbag assembly LH (side squib LH).
PREPARATION:
(a) Replace the side airbag assembly LH (see page
RS±46, RS±61).
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 56 is not output.
HINT:
Codes other than DTC 56 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