Toyota Sequoia (2005). Manual - part 355

H01010

G27652

H24025

H24542

Seat
Position
Airbag
Sensor
Assembly

LSP–

LSP+

Airbag 
Sensor 
Assembly

Service Wire

A19

A

B

C

D

B18

Floor Wire No. 2

3

5

–

DIAGNOSTICS

SUPPLEMENTAL RESTRAINT SYSTEM

DI–1215

1409

2

Check connection of connectors.

PREPARATION:
(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.

CHECK:
Check that the connectors are properly connected to the airbag sensor assembly and the seat position air-
bag sensor assembly.
OK:

The connectors are connected securely.

NG

Connect connectors, then go to step 1.

OK

3

Check floor wire No. 2 (open).

PREPARATION:
(a)

Disconnect the connectors from the airbag sensor as-
sembly and the seat position airbag sensor assembly.

(b)

Using a service wire, connect B18–3 and B18–5 of con-
nector ”C”.

NOTICE:
Do not forcibly insert a service wire into the terminals of the
connector when connecting.
CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:

Tester connection

Condition

Specified Condition

A19–9 (LSP+) – 

A19–17 (LSP–)

Always

Below 1 

Ω

NG

Repair or replace floor wire No. 2.

OK

H01010

G27652

H23365

Airbag
Sensor
Assembly

Seat
Position
Airbag
Sensor
Assembly

LSP+

LSP–

A19

A

B

D

C

Floor Wire No. 2

H01010

G27652

H23365

Airbag
Sensor
Assembly

Seat
Position
Airbag
Sensor
Assembly

LSP+

LSP–

A19

A

B

D

C

Floor Wire No. 2

DI–1216

–

DIAGNOSTICS

SUPPLEMENTAL RESTRAINT SYSTEM

1410

4

Check floor wire No. 2 (short).

PREPARATION:
Disconnect the service wire from connector ”C”.
CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:

Tester Connection

Condition

Specified Condition

A19–9 (LSP+) – 

A19–17 (LSP–)

Always

1 M

Ω

 or higher

NG

Repair or replace floor wire No. 2.

OK

5

Check floor wire No. 2 (short to B+).

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

A19–9 (LSP+) – 

Body ground

Ignition switch ON

Below 1 V

A19–17 (LSP–) – 

Body ground

Ignition switch ON

Below 1 V

NG

Repair or replace floor wire No. 2.

OK

H01010

G27652

H23365

Airbag
Sensor
Assembly

Seat
Position
Airbag
Sensor
Assembly

LSP+

LSP–

A19

A

B

D

C

Floor Wire No. 2

–

DIAGNOSTICS

SUPPLEMENTAL RESTRAINT SYSTEM

DI–1217

1411

6

Check floor wire No. 2 (short to ground).

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

A19–9 (LSP+) – 

Body ground

Always

1 M

Ω

 or higher

A19–17 (LSP–) – 

Body ground

Always

1 M

Ω

 or higher

NG

Repair or replace floor wire No. 2.

OK

H10600

H01007

H43920

H23364

DLC3

CG

TC

DTC B1653/35

Seat
Position
Airbag
Sensor
Assembly

Airbag 
Sensor 
Assembly

DI–1218

–

DIAGNOSTICS

SUPPLEMENTAL RESTRAINT SYSTEM

1412

7

Check seat position airbag sensor assembly.

PREPARATION:
(a)

Connect the connectors of the seat position airbag sensor
assembly and 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 B1653/35 is not output.

HINT:
Codes other than DTC B1653/35 may be output at this time, but
they are not related to this check.

NG

Go to step 8.

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 

DI–1137

).

8

Replace seat position airbag sensor assembly.

(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 seat position airbag sensor assembly (see page 

RS–104

).

HINT:
Perform the inspection using parts from a normal vehicle if possible.

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