Toyota Sequoia (2005). Manual - part 392

H41440

H23351

D Squib

Spiral 
Cable

Airbag 

Sensor 

Assembly

D+

D–

C

D

E

F

A

B

Cowl Wire

A23

–

DIAGNOSTICS

SUPPLEMENTAL RESTRAINT SYSTEM

DI–1363

1557

13

Check cowl wire (short).

PREPARATION:
Disconnect the cowl wire connector from the spiral cable.
HINT:
The activation prevention mechanism of connector ”B” has al-
ready been released.
CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:

Tester Connection

Condition

Specified Condition

A23–1 (D+) – A23–2 (D–)

Always

1 M

Ω

 or higher

NG

Repair or replace cowl wire.

OK

H23974

H01000

H24510

D Squib

Spiral
Cable

Airbag

Sensor

Assembly

D+

D–

Color: Orange

A

B

C

D

E

F

DI–1364

–

DIAGNOSTICS

SUPPLEMENTAL RESTRAINT SYSTEM

1558

14

Check spiral cable (short).

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

DI–1137

).

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

Tester Connection

Condition

Specified Condition

D+ – D–

Always

1 M

Ω

 or higher

NG

Replace spiral cable (see page 

RS–21

).

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

).

HINT:

Perform the simulation method by selecting the check mode with the hand–held tester (see page 

DI–1151

).

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 

DI–1151

).

H41440

H23351

D Squib

Spiral 
Cable

Airbag 

Sensor 

Assembly

D+

D–

C

D

E

F

A

B

Cowl Wire

A23

–

DIAGNOSTICS

SUPPLEMENTAL RESTRAINT SYSTEM

DI–1365

1559

15

Check cowl wire (open).

PREPARATION:
Disconnect the cowl wire connector from the spiral cable.
CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:

Tester Connection

Condition

Specified Condition

A23–1 (D+) – A23–2 (D–)

Always

Below 1 

Ω

NG

Repair or replace cowl wire.

OK

H23974

H01000

H24510

D Squib

Spiral
Cable

Airbag

Sensor

Assembly

D+

D–

Color: Orange

A

B

C

D

E

F

DI–1366

–

DIAGNOSTICS

SUPPLEMENTAL RESTRAINT SYSTEM

1560

16

Check spiral cable (open).

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

Tester Connection

Condition

Specified Condition

D+ – D–

Always

Below 1 

Ω

NG

Replace spiral cable (see page 

RS–21

).

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

).

HINT:

Perform the simulation method by selecting the check mode with the hand–held tester (see page 

DI–1151

).

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 

DI–1151

).