Toyota Sequoia (2005). Manual - part 347

H01015

G27650

H23107

Airbag 

Sensor 

Assembly

Side Airbag

Sensor Assembly RH

VUPR

Floor Wire

ESR

A

B

C

D

A21

H01015

G27650

H23107

Airbag 

Sensor 

Assembly

Side Airbag

Sensor Assembly RH

VUPR

Floor Wire

ESR

A

B

C

D

A21

–

DIAGNOSTICS

SUPPLEMENTAL RESTRAINT SYSTEM

DI–1183

1377

4

Check floor wire (short).

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

Tester Connection

Condition

Specified Condition

A21–22 (VUPR) – 

A21–20 (ESR)

Always

1 M

Ω

 or higher

NG 

Repair or replace floor wire.

OK

5

Check floor wire (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

A21–22 (VUPR) – 

Body ground

Ignition switch ON

Below 1 V

A21–20 (ESR) – 

Body ground

Ignition switch ON

Below 1 V

NG 

Repair or replace floor wire.

OK

H01015

G27650

H23107

Airbag 

Sensor 

Assembly

Side Airbag

Sensor Assembly RH

VUPR

Floor Wire

ESR

A

B

C

D

A21

DI–1184

–

DIAGNOSTICS

SUPPLEMENTAL RESTRAINT SYSTEM

1378

6

Check floor wire (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

A21–22 (VUPR) – 

Body ground

Always

1 M

Ω

 or higher

A21–20 (ESR) – 

Body ground

Always

1 M

Ω

 or higher

NG

Repair or replace floor wire.

OK

C84216

H10600

H43425

C91342

H23582

Side Airbag
Sensor Assembly LH

Airbag 
Sensor 
Assembly

DTC B1625/22

DTC B1620/21

CG

TC

DLC3

–

DIAGNOSTICS

SUPPLEMENTAL RESTRAINT SYSTEM

DI–1185

1379

7

Check side airbag sensor assembly RH.

PREPARATION:
(a)

Connect the connectors to the airbag sensor assembly.

(b)

Interchange the side airbag sensor assembly RH with LH
and connect the connectors to them.

(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 B1620/21 is output.

A

DTC B1625/22 is output.

B

DTC B1620/21 and B1625/22 are not

output.

C

HINT:
Codes other than DTC B1620/21 and B1625/22 may be output
at this time, but they are not related to this check.

A

Replace airbag sensor assembly
(see page 

RS–82

).

B

Replace side airbag sensor assembly RH
(see page 

RS–92

).

C

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

).

H02751

Airbag Sensor Assembly

S15
Side Airbag Sensor Assembly LH

A19

19

VUPL

W

2

ESL

A19

21

B

1

VUPL

ESL

DI–1186

–

DIAGNOSTICS

SUPPLEMENTAL RESTRAINT SYSTEM

1380

DTC

B1625/22 Side Airbag Sensor Assembly (LH) 

Malfunction

CIRCUIT DESCRIPTION

The side airbag sensor assembly LH consists of the safing sensor, the diagnosis circuit, the lateral decelera-
tion sensor, etc. 
If the airbag sensor assembly receives signals from the lateral deceleration sensor, it determine whether or
not the SRS should be activated. 
DTC B1625/22 is recorded when a malfunction is detected in the side airbag sensor assembly LH circuit.

DTC No.

DTC Detection Condition

Trouble Area

B1625/22

The airbag sensor assembly receives a line short circuit

signal, an open circuit signal, a short circuit to ground sig-

nal or a short circuit to B+ signal in the side airbag sensor

assembly LH circuit for 2 seconds.

Side airbag sensor assembly LH malfunction

Airbag sensor assembly malfunction

Side airbag sensor assembly LH

Airbag sensor assembly

Floor wire No. 2

WIRING DIAGRAM

DIDGV–01