Toyota Sequoia (2005). Manual — part 399
H01003
H10600 H01077
H23361
Spiral
Cable
Airbag
Sensor
Assembly
DTC 53
DLC3
TC
CG
D Squib
(Dual stage –
2nd step)
E
F
C
D
–
DIAGNOSTICS
SUPPLEMENTAL RESTRAINT SYSTEM
DI–1391
1585
9
Replace steering wheel pad (D squib, dual stage – 2nd step).
PREPARATION:
(a)
Replace the steering wheel pad (see page
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
(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)
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
).
OK
END
H01002
H23349
Spiral
Cable
Airbag
Sensor
Assembly
D Squib
(Dual stage –
2nd step)
C
E
D
F
DI–1392
–
DIAGNOSTICS
SUPPLEMENTAL RESTRAINT SYSTEM
1586
10
Check airbag sensor assembly.
PREPARATION:
(a)
Connect the connectors to the airbag sensor assembly.
(b)
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
(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)
OK:
DTC B1810 is not output.
HINT:
Codes other than DTC B1810 may be output at this time, but
they are not related to this check.
NG
Replace airbag sensor assembly
(see page
).
OK
Go to step 12.
H01002
C89252
H23353
D2+
D2–
Spiral
Cable
D Squib
(Dual stage –
2nd step)
Color: Black
Service Wire
C
E
D
F
Airbag
Sensor
Assembly
–
DIAGNOSTICS
SUPPLEMENTAL RESTRAINT SYSTEM
DI–1393
1587
11
Check airbag sensor assembly.
PREPARATION:
(a)
From the step 6:
Turn the ignition switch to the LOCK position.
(b)
From the step 6:
Disconnect the negative (–) terminal cable from the bat-
tery, and wait for at least 90 seconds.
(c)
Connect the connectors to the airbag sensor assembly.
(d)
Using a service wire, connect D2+ and D2– of connector
”E”.
NOTICE:
Twist the end of the service wire in order to insert it
into the connector.
Do not forcibly insert the twisted service wire into the
terminals of the connector when connecting.
(e)
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
(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)
OK:
DTC B1811, B1812 or B1813 is not output.
HINT:
Codes other than DTC B1811, B1812 and B1813 may be out-
put at this time, but they are not related to this check.
NG
Replace airbag sensor assembly
(see page
).
OK
H01003
H23354
Spiral
Cable
Airbag
Sensor
Assembly
D Squib
(Dual stage –
2nd step)
C
E
D
F
DI–1394
–
DIAGNOSTICS
SUPPLEMENTAL RESTRAINT SYSTEM
1588
12
Check steering wheel pad (D squib, dual stage – 2nd step).
PREPARATION:
(a)
Turn the ignition switch to the LOCK position.
(b)
Disconnect the negative (–) terminal cable from the bat-
tery, and wait for at least 90 seconds.
(c)
From the step 11:
Disconnect the service wire from connector ”E”.
(d)
Connect the connectors to the steering wheel pad.
(e)
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
(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)
OK:
DTC B1810, B1811, B1812 or B1813 is not output.
HINT:
Codes other than DTC B1810, B1811, B1812 and B1813 may
be output at this time, but they are not related to this check.
NG
Replace
steering wheel pad
(see page
).
OK
From the results of the above inspection, the malfunctioning part can now be considered normal.
To make sure of this, use the simulation method to check (see page
HINT:
Perform the simulation method by selecting the check mode with the hand–held tester (see page
After selecting the check mode, perform the simulation method by wiggling each connector of the air-
bag system or driving the vehicle on a city or rough road (see page
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