Toyota FJ Cruiser (GSJ 10, 15 series). Instruction - part 331

ME–56

METER  –  METER / GAUGE SYSTEM

ME

Result

B

A

(a) Connect the intelligent tester 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

(a) Disconnect the E29 center airbag sensor assembly 

connector.

(b) Disconnect the E13 combination meter assembly 

connector.

Result

Proceed to

No SRS DTCs are output

A

SRS DTCs are output

B

GO TO SUPPLEMENTAL RESTRAINT 
SYSTEM

6

CHECK OCCUPANT CLASSIFICATION SYSTEM

Result

Proceed to

No occupant classification system 

DTCs are output

A

Occupant classification system 

DTCs are output

B

GO TO OCCUPANT CLASSIFICATION 
SYSTEM

7

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

METER  –  METER / GAUGE SYSTEM

ME–57

ME

(c) Measure the resistance.

Standard resistance

(d) Reconnect the center airbag sensor assembly 

connector.

(e) Reconnect the combination meter assembly connector.

NG

OK

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

REPAIR OR REPLACE HARNESS OR 
CONNECTOR

REPLACE COMBINATION METER ASSEMBLY

ME–58

METER  –  METER / GAUGE SYSTEM

ME

DESCRIPTION

The combination meter assembly controls the combination meter illumination in accordance with the light 
control signals from the light control rheostat.

WIRING DIAGRAM

INSPECTION PROCEDURE

(a) Remove the TAIL fuse from the main body ECU.
(b) Measure the resistance.

Standard resistance:

Below 1 

Ω

(c) Reinstall the TAIL fuse.

NG

OK

Operating Light Control Rheostat does not Change Light Brightness

1

INSPECT FUSE (TAIL)

TAIL

Headlight 
Dimmer Switch

Light Control Rheostat

Combination Meter 
Assemmbly

Each Illumination Part

E



ILL-

T

T

EL

ILL-

To Battery

Main Body ECU

(J/B)

TAIL

TRLY

TAIL

E126881E02

REPLACE FUSE

METER  –  METER / GAUGE SYSTEM

ME–59

ME

(a) Disconnect the E4 light control rheostat connector.
(b) Measure the voltage and resistance.

Standard

(c) Reconnect the light control rheostat connector.

NG

OK

(a) Remove the light control rheostat but without 

disconnecting the connector. 

(b) Turn the ignition switch ON.
(c) Using an oscilloscope, check the signal waveform of the 

light control rheostat.

OK:

Waveform is as shown in the illustration.

HINT:
Duty ratio changes as the illumination dims. (A becomes 
longer)

(d) Reinstall the light control rheostat.

NG

OK

2

CHECK HARNESS AND CONNECTOR (FUSE (TAIL) - RHEOSTAT, RHEOSTAT - BODY 
GROUND)

Wire Harness Side:

E4

Light Control Rheostat Connector

T

Front View

E

E126877E01

Tester Connection

Condition

Specified Condition

E4-4 (T) - Body ground

Tail light ON

11 to 14V

E4-5 (E) - Body ground

Always

Below 1 

Ω

REPAIR OR REPLACE HARNESS OR 
CONNECTOR

3

INSPECT LIGHT CONTROL RHEOSTAT

Light Control Rheostat

E4

-

Waveform :

A

GND

Component Side:

E126879E01

Item

Contents

Terminal connection

E4-3 (-) - Body ground

Tool setting

5V / DIV, 50ms / DIV

Vehicle condition

Ignition switch ON

REPLACE LIGHT CONTROL RHEOSTAT