Toyota Sequoia (2005). Manual - part 416

H01454

P11
P/T Squib RH

Airbag Sensor Assembly

A21

4

PR+

Y–B

1

2

Y

A21

3

PR–

–

DIAGNOSTICS

SUPPLEMENTAL RESTRAINT SYSTEM

DI–1459

1653

WIRING DIAGRAM

DI–1460

–

DIAGNOSTICS

SUPPLEMENTAL RESTRAINT SYSTEM

1654

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.

(g)

w/ Side and curtain shield airbag:
Disconnect the connectors from the curtain shield airbag assembly LH.

(h)

Disconnect the connectors from the front seat outer belt LH.

1

Check DTC.

CHECK:
(a)

Proceed to each step according to how to read DTC.
(1)

If using the hand–held tester (read the 5–digit of DTC):
Using the hand–held tester, check the DTCs (see page 

DI–1147

).

RESULT:

DTC B1900 is output.

A

DTC B1901 is output.

B

DTC B1902 is output.

C

DTC B1903 is output.

D

(2)

If not using the hand–held tester (read the 2–digit of DTC):
Check the DTCs (see page 

DI–1147

).

RESULT:

DTC 73 is output.

E

HINT:
Codes other than DTC B1900, B1901, B1902, B1903 and DTC 73 may be output at this time, but they are
not related to this check.

B

Go to step 4.

C

Go to step 5.

D

Go to step 6.

E

Go to step 7.

A

H01019

H43108

H23604

P/T Squib RH

PR–

PR+

Airbag
Sensor
Assembly

Floor Wire

B

C

D

A

P11

–

DIAGNOSTICS

SUPPLEMENTAL RESTRAINT SYSTEM

DI–1461

1655

2

Check connector.

CHECK:
Check that the floor wire connector (on the front seat outer belt RH side) is not damaged.
OK:

The lock button is not disengaged, or the claw of the lock is not deformed or damaged.

NG

Repair or replace floor wire.

OK

3

Check floor wire (short).

PREPARATION:
Release the activation prevention mechanism built into con-
nector ”B” (see page 

DI–1137

).

CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:

Tester Connection

Condition

Specified Condition

P11–1 (PR+) – 

P11–2 (PR–)

Always

1 M

Ω

 or higher

NG

Repair or replace floor wire.

OK

Go to step 10.

H01019

H43108

H23604

P/T Squib RH

PR–

PR+

Airbag
Sensor
Assembly

Floor Wire

B

C

D

A

P11

H01019

H43108

H23604

P/T Squib RH

PR–

PR+

Airbag
Sensor
Assembly

Floor Wire

B

C

D

A

P11

DI–1462

–

DIAGNOSTICS

SUPPLEMENTAL RESTRAINT SYSTEM

1656

4

Check floor wire (open).

CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:

Tester Connection

Condition

Specified Condition

P11–1 (PR+) – 

P11–2 (PR–)

Always

Below 1 

Ω

NG

Repair or replace floor wire.

OK

Go to step 11.

5

Check floor wire (short to ground).

CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:

Tester Connection

Condition

Specified Condition

P11–1 (PR+) – 

Body ground

Always

1 M

Ω

 or higher

P11–2 (PR–) – 

Body ground

Always

1 M

Ω

 or higher

NG

Repair or replace floor wire.

OK

Go to step 11.