Toyota Sequoia (2005). Manual — part 426
H40173
G27651
H23482
DLC3:
TC
Airbag Sensor Assembly:
A20
TC
D6
–
DIAGNOSTICS
SUPPLEMENTAL RESTRAINT SYSTEM
DI–1499
1693
INSPECTION PROCEDURE
CAUTION:
Be sure to perform the following procedures before troubleshooting to avoid unexpected airbag de-
ployment.
(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 assembly.
(d)
Disconnect the connectors from the steering wheel pad.
(e)
Disconnect the connectors from the front passenger airbag assembly.
(f)
w/ Side and curtain shield airbag:
Disconnect the connectors from the side airbag assembly LH and RH.
(g)
w/ Side and curtain shield airbag:
Disconnect the connectors from the curtain shield airbag assembly LH and RH.
(h)
Disconnect the connectors from the front seat outer belt LH and RH.
1
Check wire harness (DLC3 – airbag sensor assembly).
CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:
Tester Connection
Condition
Specified Condition
D6–13 (TC) –
A20–15 (TC)
Always
Below 1
Ω
NG
Repair or replace wire harness (TC of DLC3 – TC
of airbag sensor assembly).
OK
H23483
CG
DLC3:
D6
H23040
TC
A20
DI–1500
–
DIAGNOSTICS
SUPPLEMENTAL RESTRAINT SYSTEM
1694
2
Check wire harness (CG of DLC3 – body ground).
CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:
Tester Connection
Condition
Specified Condition
D6–4 (CG) – Body ground
Always
Below 1
Ω
NG
Repair or replace wire harness (CG of DLC3 to
body ground).
OK
3
Check wire harness (TC of airbag sensor assembly – body ground).
CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:
Tester Connection
Condition
Specified Condition
A20–15 (TC) –
Body ground
Always
1 M
Ω
or higher
NG
Repair or replace wire harness or each ECU.
OK
Replace airbag sensor assembly (see page
).
DIDDW–01
–
DIAGNOSTICS
POWER SEAT CONTROL SYSTEM (w/ Driving Position
Memory)
DI–1501
1695
POWER SEAT CONTROL SYSTEM (w/ Driving Position
Memory)
PRECAUTION
NOTICE:
When disconnecting the battery terminal, initialize the following system after the terminal is recon-
nected.
System Name
See Page
Back Door Power Window Control System
DIDDX–01
I28733
Instrument Panel J/B
ECU–IG Fuse
PWR SEAT Fuse
Power Seat Motor (Reclining)
Lumbar Support Control Motor
Seat Memory Switch
Power Seat Motor (Rear Lifter)
Lumbar Support Control Switch
Position Control ECU & Switch Assy
Power Seat Motor (Front Vertical)
Power Seat Motor (Slide)
DI–1502
–
DIAGNOSTICS
POWER SEAT CONTROL SYSTEM (w/ Driving Position
Memory)
1696
LOCATION
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