Toyota Sequoia (2005). Manual - part 361

H23995

RMIL

A20

20

IM1

B–R

I18
Ignition SW

Combination Meter

Battery

IG2

A20

21

E1

A20

25

E2

A20

26

B

W–B

W–B

B–R

IG2

AM2

6

5

W–R

RSCA OFF

B–R

C5

40

C6

12

C6

24

1H

11

1C

2

1A

3

IGN1

1D

6

1F

9

1F

10

1A

6

1A

8

Instrument Panel J/B

Engine Room J/B

1C

3

1J

7

2C

1

2D

1

AM2

BR

W–B

W–B

J8
J/C

A

A

F10
Fusible Link Block

4

5

B

B

B–O

IE

Airbag Sensor
Assembly

1

W–R

–

DIAGNOSTICS

SUPPLEMENTAL RESTRAINT SYSTEM

DI–1239

1433

WIRING DIAGRAM

DI–1240

–

DIAGNOSTICS

SUPPLEMENTAL RESTRAINT SYSTEM

1434

INSPECTION PROCEDURE

1

Check RSCA OFF indicator condition.

CHECK:
Turn the ignition switch to the ON position, check the RSCA OFF indicator condition.
RESULT:

The RSCA OFF indicator does not come on when the RSCA OFF switch is

operate (remains off).

A

The RSCA OFF indicator remains on when the RSCA OFF switch is not

operate (remains on).

B

B

Go to step 7.

A

2

Prepare for inspection.

PREPARATION:
CAUTION:
Be sure to perform the following procedures before troubleshooting to avoid unexpected airbag de-
ployment.
(a)

Turn the ignition switch 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 and RH.

(g)

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

(h)

Disconnect the connectors from the front seat outer belt LH and RH.

NEXT

I28570

C6

C6–24

–

DIAGNOSTICS

SUPPLEMENTAL RESTRAINT SYSTEM

DI–1241

1435

3

Check battery.

CHECK:
Measure the voltage of the battery.
OK:

Voltage: 11 to 14 V

NG

Replace battery.

OK

4

Check combination meter (source voltage).

PREPARATION:
Disconnect the connector from the combination meter.
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

C6–24 – Body ground

Ignition switch ON

8 to 14 V

NG

Repair or replace wire harness (combination
meter – battery).

OK

H01015

G27651

H23985

RMIL

Airbag
Sensor
Assembly

A

Cowl Wire

Combination
Meter

A20

B

C

D

DI–1242

–

DIAGNOSTICS

SUPPLEMENTAL RESTRAINT SYSTEM

1436

5

Check cowl 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

A20–20 (RMIL) – 

Body ground

Ignition switch ON

Below 1 V

NG

Repair or replace cowl wire.

OK