Toyota Sequoia (2005). Manual - part 396

H23635

P Squib

Airbag 
Sensor 
Assembly

P–

P+

Cowl Wire

A

B

C

D

A22

–

DIAGNOSTICS

SUPPLEMENTAL RESTRAINT SYSTEM

DI–1379

1573

6

Check cowl wire (P squib circuit).

PREPARATION:
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.

(b)

Measure the voltage according to the value(s) in the table
below.

OK:

Tester Connection

Condition

Specified Condition

A22–1 (P+) – 

Body ground

Ignition switch ON

Below 1 V

A22–2 (P–) – 

Body ground

Ignition switch ON

Below 1 V

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.

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

Tester Connection

Condition

Specified Condition

A22–1 (P+) – A22–2 (P–)

Always

Below 1 

Ω

A22–1 (P+) – 

Body ground

Always

1 M

Ω

 or higher

A22–2 (P–) – 

Body ground

Always

1 M

Ω

 or higher

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

A22–1 (P+) – A22–2 (P–)

Always

1 M

Ω

 or higher

NG

Repair or replace cowl wire.

OK

H10600

H01024

H01076

H23357

P Squib

Airbag
Sensor
Assembly

DTC 52

DLC3

TC

CG

DC

DI–1380

–

DIAGNOSTICS

SUPPLEMENTAL RESTRAINT SYSTEM

1574

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

H01023

H23358

P Squib

Airbag
Sensor
Assembly

D

C

–

DIAGNOSTICS

SUPPLEMENTAL RESTRAINT SYSTEM

DI–1381

1575

8

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 

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 B1805 is not output.

HINT:
Codes other than DTC B1805 may be output at this time, but
they are not related to this check.

NG

Replace airbag sensor assembly
(see page 

RS–82

).

OK

Go to step 10.

H23801

H01023

H23990

P Squib

Airbag 
Sensor 
Assembly

Cowl Wire

C

D

P–

P+

SST

A22

DI–1382

–

DIAGNOSTICS

SUPPLEMENTAL RESTRAINT SYSTEM

1576

9

Check airbag sensor assembly.

PREPARATION:
(a)

From the step 5:
Turn the ignition switch to the LOCK position.

(b)

From the step 5:
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 SST, connect A22–1 (P+) and A22–2 (P–) of con-
nector ”C”.
SST

09843–18040

(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 

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 B1806, B1807 or B1808 is not output.

HINT:
Codes other than DTC B1806, B1807 and B1808 may be out-
put at this time, but they are not related to this check.

NG

Replace airbag sensor assembly
(see page 

RS–82

).

OK