Toyota FJ Cruiser (GSJ 10, 15 series). Instruction - part 286

LIGHTING  –  LIGHTING SYSTEM

LI–41

LI

NG

(a) Remove the TRN-HAZ fuse from the engine room R/B 

No.2.

(b) Measure the resistance.

Standard resistance:

Below 1 

Ω

(c) Reinstall the TRN-HAZ fuse.

NG

OK

(a) Disconnect the E9 turn signal flasher relay connector.
(b) Measure the voltage.

Standard voltage

(c) Measure the resistance.

Standard resistance

(d) Reconnect the turn signal flasher relay connector.

NG

OK

2

INSPECT FUSE (TRN-HAZ)

REPLACE FUSE

3

CHECK HARNESS AND CONNECTOR (FUSE - TURN SIGNAL FLASHER RELAY - BODY 
GROUND)

Turn Signal Flasher Relay Connector

Wire Harness Side:

E

B

Front View

E9

E120966E09

Tester Connection

Condition

Specified Condition

E9-4 (B) - Body ground

Always

11 to 14 V

Tester Connection

Condition

Specified Condition

E9-7 (E) - Body ground

Always

Below 1 

Ω

REPAIR OR REPLACE HARNESS OR 
CONNECTOR

REPLACE TURN SIGNAL FLASHER RELAY

LI–42

LIGHTING  –  LIGHTING SYSTEM

LI

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

Standard resistance

(c) Reconnect the air conditioning amplifier connector.

OK

NG

(a) Temporarily replace the integration control and panel 

assembly with a new or normally functioning one.

(b) Check the hazard warning switch operation.
OK:

All turn signal lights flash.

NG

OK

4

INSPECT AIR CONDITIONING AMPLIFIER ASSEMBLY (HAZARD WARNING SWITCH)

Component Side:

Air conditioning Amplifier Assembly

HAZ

GND

E32

B138199E01

Tester Connection

Condition

Specified Condition

19 (HAZ) - 20 (GND)

Hazard warning switch 

OFF

10 k

Ω or higher

19 (HAZ) - 20 (GND)

Hazard warning switch 

ON

Below 3 

Ω

              Go to step 6

5

INSPECT INTEGRATION CONTROL AND PANEL ASSEMBLY (HAZARD WARNING 
SWITCH)

REPLACE AIR CONDITIONING AMPLIFIER 
ASSEMBLY

END (INTEGRATION CONTROL AND PANEL ASSEMBLY IS FAULTY)

LIGHTING  –  LIGHTING SYSTEM

LI–43

LI

(a) Disconnect the E32 air conditioning amplifier connector.
(b) Disconnect the 1J main body ECU connector.
(c) Measure the resistance.

Standard resistance

(d) Reconnect the air conditioning amplifier connector.
(e) Reconnect the main body ECU connector.

NG

OK

6

CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER - MAIN BODY 
ECU, BODY GROUND)

1 2 3 4 5 6 7 8 9 10

11 12 13 14 15 16 17 18 19 20



















     

 

   

   

 

Wire Harness Side:

HAZ

GND

HAZ

Air Conditioning Amplifier Connector

Front View

Front View

Main Body ECU Connector

1J

E32

B136096E01

Tester Connection

Specified Condition

E32-19 (HAZ) - 1J-15 (HAZ)

Below 1 

Ω

E32-19 (HAZ) or 1J-15 (HAZ) - Body 

ground

10 k

Ω or higher

E32-20 (GND) - Body ground

Below 1 

Ω

REPAIR OR REPLACE HARNESS OR 
CONNECTOR

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

LI–44

LIGHTING  –  LIGHTING SYSTEM

LI

DESCRIPTION

A/T models: The park / neutral position switch turns on when the shift lever is moved into the R position, 
causing the back-up lights to illuminate.
M/T models: The back-up light switch turns on when the shift lever is moved into the R position, causing 
the back-up lights to illuminate.

WIRING DIAGRAM

INSPECTION PROCEDURE

(a) Remove the IG1 fuse from the main body ECU.
(b) Measure the resistance.

Standard resistance:

Below 1 

Ω

(c) Reinstall the IG1 fuse.

NG

OK

Back-up Light Circuit

1

INSPECT FUSE (IG1)

Park / Neutral Position 
Switch*2

Back-up Light Switch*1

R

RB

RL

Back-up Light 
Bulb RH

IG1

*2: A/T

Back-up Light 
Bulb LH

*1: M/T

RB

RL

To Ignition Switch

E120013E06

REPLACE FUSE