Toyota FJ Cruiser (GSJ 10, 15 series). Instruction — part 440

SEAT BELT – SEAT BELT WARNING SYSTEM

SB–27

SB

OK

(a) Disconnect the E6 main body ECU (driver side J/B)

connector.

(b) Disconnect the L19 front seat inner belt assembly (driver

side) connector.

(c) Measure the resistance.

Standard resistance

(d) Reconnect the main body ECU (driver side J/B)

connector.

(e) Reconnect the front seat inner belt assembly (driver

side) connector.

NG

OK

4

CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - FRONT SEAT INNER BELT
ASSEMBLY)

Wire Harness Side:

Front Seat Inner Belt Assembly
(Driver Side) Connector

Front View

Front View

Main Body ECU (Driver Side J/B) Connector

L19

E6

+

DBKL

B137679E01

Tester Connection

Specified Condition

E6-13 (DBKL) - L19-3 (+)

Below 1

Ω

E6-13 (DBKL) or L19-3 (+) - Body

ground

10 k

Ω or higher

REPAIR OR REPLACE HARNESS OR
CONNECTOR

REPAIR OR REPLACE HARNESS OR CONNECTOR (FRONT SEAT INNER BELT ASSEMBLY -
BODY GROUND)

SB–28

SEAT BELT – SEAT BELT WARNING SYSTEM

SB

DESCRIPTION

When the ignition switch is ON and the front passenger seat is occupied, the occupant classification ECU
communicates the status of the front seat inner belt assembly (passenger side) to the center airbag
sensor assembly. The combination meter assembly receives signals from the center airbag sensor
assembly and transmits them to the integration control and panel assembly. When the seat belt is
unfastened, the combination meter assembly flashes the front passenger seat belt warning light on the
integration control and panel assembly. When the seat belt is fastened, the combination meter assembly
stops flashing the front passenger seat belt warning light on the integration control and panel assembly.

WIRING DIAGRAM

Front Passenger Side Seat Belt Warning Light Malfunction

Front Seat Inner Belt Assembly
(Passenger Side)

Occupant Classification ECU

Center Airbag Sensor
Assembly

Combination Meter Assembly

Air Conditioning
Amplifier

Front Passenger Seat Belt
Warning Light

RBE+

RBE-

BSW

BGND

FSR+

FSR-

FSP+

FSP-

PBEW

PBKL

WRNP

PBEW

Integration Control and Panel Assembly

B137676E01

SEAT BELT – SEAT BELT WARNING SYSTEM

SB–29

SB

INSPECTION PROCEDURE

(a) Connect the intelligent tester with the CAN VIM to the

DLC3.

(b) Turn the ignition switch ON and turn the tester ON.
(c) Enter the following menus: DIAGNOSIS / SRS AIRBAG/

DTC INFO
Result

B

A

(a) Connect the intelligent tester with the CAN VIM to the

DLC3.

(b) Turn the ignition switch ON and turn the tester ON.
(c) Enter the following menus: DIAGNOSIS / OCCUPANT

DETECT / DTC INFO
Result

B

A

1

CHECK SUPPLEMENTAL RESTRAINT SYSTEM

Result

Proceed to

No DTCs are output

A

DTCs are output

B

GO TO SUPPLEMENTAL RESTRAINT
SYSTEM

2

CHECK OCCUPANT CLASSIFICATION SYSTEM

Result

Proceed to

No DTCs are output

A

DTCs are output

B

GO TO OCCUPANT CLASSIFICATION
SYSTEM

SB–30

SEAT BELT – SEAT BELT WARNING SYSTEM

SB

(a) Disconnect the E29 center airbag sensor assembly

connector.

(b) Disconnect the E13 combination meter assembly

connector.

(c) Measure the resistance.

Standard resistance

(d) Reconnect the center airbag sensor assembly

connector.

(e) Reconnect the combination meter assembly connector.

NG

OK

(a) Disconnect the E13 combination meter assembly

connector.

(b) Disconnect the E32 air conditioning amplifier connector.
(c) Measure the resistance.

Standard resistance

(d) Reconnect the combination meter assembly connector.
(e) Reconnect the air conditioning amplifier connector.

NG

3

CHECK HARNESS AND CONNECTOR (CENTER AIRBAG SENSOR ASSEMBLY -
COMBINATION METER ASSEMBLY)

Wire Harness Side:

Center Airbag Sensor Assembly Connector

Combination Meter Assembly Connector

Front View

E29

E13

PBEW

PBKL

B137690E01

Tester Connection

Specified Condition

E29-13 (PBEW) - E13-10 (PBKL)

Below 1

Ω

E29-13 (PBEW) or E13-10 (PBKL) -

Body ground

10 k

Ω or higher

REPAIR OR REPLACE HARNESS OR
CONNECTOR

4

CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - AIR
CONDITIONING AMPLIFIER)

Wire Harness Side:

Combination Meter Assembly Connector

Air Conditioning Amplifier Connector

Front View

Front View

E13

E32

WRNP

PBEW

B137691E01

Tester Connection

Specified Condition

E13-7 (WRNP) - E32-16 (PBEW)

Below 1

Ω

E13-7 (WRNP) or E32-16 (PBEW) -

Body ground

10 k

Ω or higher

REPAIR OR REPLACE HARNESS OR
CONNECTOR