Toyota Sequoia (2005). Manual - part 426

H40173

G27651

H23482

DLC3:

TC

Airbag Sensor Assembly:

A20

TC

D6

–

DIAGNOSTICS

SUPPLEMENTAL RESTRAINT SYSTEM

DI–1499

1693

INSPECTION PROCEDURE

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

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.

1

Check wire harness (DLC3 – airbag sensor assembly).

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

Tester Connection

Condition

Specified Condition

D6–13 (TC) – 

A20–15 (TC)

Always

Below 1 

Ω

NG

Repair or replace wire harness (TC of DLC3 – TC
of airbag sensor assembly).

OK

H23483

CG

DLC3:

D6

H23040

TC

A20

DI–1500

–

DIAGNOSTICS

SUPPLEMENTAL RESTRAINT SYSTEM

1694

2

Check wire harness (CG of DLC3 – body ground).

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

Tester Connection

Condition

Specified Condition

D6–4 (CG) – Body ground

Always

Below 1 

Ω

NG

Repair or replace wire harness (CG of DLC3 to
body ground).

OK

3

Check wire harness (TC of airbag sensor assembly – body ground).

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

Tester Connection

Condition

Specified Condition

A20–15 (TC) – 

Body ground

Always

1 M

Ω

 or higher

NG

Repair or replace wire harness or each ECU.

OK

Replace airbag sensor assembly (see page 

RS–82

).

DIDDW–01

–

DIAGNOSTICS

POWER SEAT CONTROL SYSTEM (w/ Driving Position 
Memory)

DI–1501

1695

POWER SEAT CONTROL SYSTEM (w/ Driving Position
Memory)

PRECAUTION

NOTICE:
When disconnecting the battery terminal, initialize the following system after the terminal is recon-
nected.

System Name

See Page

Back Door Power Window Control System

BE–77

DIDDX–01

I28733

Instrument Panel J/B

 ECU–IG Fuse

 PWR SEAT Fuse

Power Seat Motor (Reclining)

Lumbar Support Control Motor

Seat Memory Switch

Power Seat Motor (Rear Lifter)

Lumbar Support Control Switch

Position Control ECU & Switch Assy

Power Seat Motor (Front Vertical)

Power Seat Motor (Slide)

DI–1502

–

DIAGNOSTICS

POWER SEAT CONTROL SYSTEM (w/ Driving Position 
Memory)

1696

LOCATION