Toyota Sequoia (2005). Manual - part 334

SENSITIVITY CHECK PROCEDURE

”1: DIAGNOSIS” – ”1: OBD/MOBD” – ”MODEL YEAR” – ”MODEL SELECTION = SEQUOIA” – 
Select the option parts – ”9: OCCUPANT DETECT” – Refer to the following screen flow.

DIAGNOSTIC MENU

OCCUPANT DETECT

1: DATA LIST
2: DTC INFO

5: ZERO CALIBRATION

6: SENSITIVITY CHK

4: SNAPSHOT

NOTICE

Please confirm
that nothing is
placed on the
passenger seat.

PRESS [ENTER] or [EXIT]

SENSITIVITY CHECK

Beginning sensor
reading should be
–3.2 to 3.2 kg.

PRESS [ENTER]

SENSITIVITY CHECK

PRESS [ENTER]

(–7 to 7 lbs)

Sensor reading

0.00    kg

Place 30 kg (66 lbs)
weight on passenger
seat. Sensor reading
should be 27 to 33 kg.

(59 to 73 lbs)

Sensor reading

0.00    kg

*1: kg 

⇔

 lb

Unit can be changed based on unit conversion setting.

[System Selection Screen]
”1: DIAGNOSIS” – ”9: SETUP” – ”4: UNIT CONVERSION”
– ”WEIGHT” (kg 

⇔

 lbs)

(*1)

–

DIAGNOSTICS

SUPPLEMENTAL RESTRAINT SYSTEM

DI–1131

1325

DI6P2–15

DI–1132

–

DIAGNOSTICS

SUPPLEMENTAL RESTRAINT SYSTEM

1326

PROBLEM SYMPTOMS TABLE

Proceed with troubleshooting of each circuit in the table below.

Symptom

Suspected Area

See page

The front passenger seat condition differs from the indication by

the passenger airbag ON/OFF indicator (DTC is not output).

Trouble in indication of Passenger airbag ON/OFF indica-

tor

DI–1485

With the ignition switch is in ON position, the SRS warning light

sometimes comes on after approximately 6 seconds.

SRS warning light circuit (Always comes on, when DTC is

not output)

DI–1491

The SRS warning light always comes on even when DTC is not

output.

SRS warning light circuit (Always comes on, when DTC is

not output)

DI–1491

With the ignition switch is in the ON position, the SRS warning

light does not come on.

SRS warning light circuit (Does not come on, when igni-

tion switch is turned to the ON position)

DI–1496

Although an SRS warning light operates normally, DTC or a

normal system code is not display.

TC terminal circuit

DI–1498

Although terminals TC and CG of DLC3 are not connected, DTC

or a normal system code is display.

TC terminal circuit

DI–1498

DIDGL–01

H24009

A19

A20

A21

17

24

18

23

19

22

20

21

4

8

3

7

2

6

1

5

12

13

11

14

10

15

9

16

28 27 26 25

30 29

4

8

3

7

2

6

1

5

4

8

3

7

2

6

1

5

10 9

12

13

11

14

15

16

10 9

12

13

11

14

15

16

17

18

19

20

24 23 22 21

17

18

19

20

24 23 22 21

–

DIAGNOSTICS

SUPPLEMENTAL RESTRAINT SYSTEM

DI–1133

1327

TERMINALS OF ECU

1.

AIRBAG SENSOR ASSEMBLY

Terminal No.

Terminal Symbol

Destination

A19–1 (*1)

SFL+

Side airbag assembly LH (Side squib LH)

A19–2 (*1)

SFL–

Side airbag assembly LH (Side squib LH)

A19–3 (*1)

ICL–

Curtain shield airbag assembly LH (Curtain shield airbag LH

squib)

A19–4 (*1)

ICL+

Curtain shield airbag assembly LH (Curtain shield airbag LH

squib)

A19–5

PL+

Front seat outer belt LH (P/T squib LH)

A19–6

PL–

Front seat outer belt LH (P/T squib LH)

A19–9

LSP+

Seat position airbag sensor assembly

A19–10

LBE+

Front seat inner belt RH (Seat belt buckle switch LH)

A19–17

LSP–

Seat position airbag sensor assembly

A19–18

LBE–

Front seat inner belt RH (Seat belt buckle switch LH)

A19–19 (*1)

VUPL

Side airbag sensor assembly LH

A19–20 (*1)

VUCL

Curtain shield airbag sensor assembly LH

A19–21 (*1)

ESL

Side airbag sensor assembly LH

A19–22 (*1)

ESCL

Curtain shield airbag sensor assembly LH

A20–1

P2+

Front passenger airbag assembly (P squib (Dual stage – 2nd

step))

A20–2

P2–

Front passenger airbag assembly (P squib (Dual stage – 2nd

step))

A20–3

P–

Front passenger airbag assembly (P squib)

A20–4

P+

Front passenger airbag assembly (P squib)

A20–5

D+

Steering wheel pad (D squib)

A20–6

D–

Steering wheel pad (D squib)

A20–7

D2–

Steering wheel pad (D squib (Dual stage – 2nd step))

A20–8

D2+

Steering wheel pad (D squib (Dual stage – 2nd step))

A20–13

PBEW

Integration control and panel (Seat belt warning light)

A20–14

LA

Combination meter (SRS warning light)

A20–15

TC

DLC3

DI–1134

–

DIAGNOSTICS

SUPPLEMENTAL RESTRAINT SYSTEM

1328

A20–16

SIL

DLC3

A20–17

P–AB

Integration control and panel (Passenger airbag ON/OFF indi-

cator)

A20–18

GSW

Body ECU

A20–19 (*1)

RMSW

RSCA cutoff switch

A20–20 (*1)

RMIL

Combination meter (RSCA OFF indicator)

A20–21

IG2

IGN1 Fuse (Power source)

A20–22

GSW2

ECM

A20–23

PAON

Integration control and panel (Passenger airbag ON/OFF indi-

cator)

A20–25

E1

Ground

A20–26

E2

Ground

A20–27

–SR

Front airbag sensor RH

A20–28

–SL

Front airbag sensor LH

A20–29

+SR

Front airbag sensor RH

A20–30

+SL

Front airbag sensor LH

A21–3

PR–

Front seat outer belt RH (P/T squib RH)

A21–4

PR+

Front seat outer belt RH (P/T squib RH)

A21–5 (*1)

ICR+

Curtain shield airbag assembly RH (Curtain shield airbag RH

squib)

A21–6 (*1)

ICR–

Curtain shield airbag assembly RH (Curtain shield airbag RH

squib)

A21–7 (*1)

SFR–

Side airbag assembly RH (Side squib RH)

A21–8 (*1)

SFR+

Side airbag assembly RH (Side squib RH)

A21–16

FSR+

Occupant classification ECU

A21–19 (*1)

ESCR

Curtain shield airbag sensor assembly RH

A21–20 (*1)

ESR

Side airbag sensor assembly RH

A21–21 (*1)

VUCR

Curtain shield airbag sensor assembly RH

A21–22 (*1)

VUPR

Side airbag sensor assembly RH

A21–24

FSR–

Occupant classification ECU

*1: w/ Side and curtain shield airbag