Toyota FJ Cruiser (GSJ 10, 15 series). Instruction - part 290

LIGHTING  –  LIGHTING SYSTEM

LI–57

LI

(a) Check the wire harness between the main body ECU 

and rear door courtesy switch LH (upper and lower).
(1) Disconnect the E7 main body ECU connector.
(2) Disconnect the J2 and J3 door courtesy switch 

connectors.

(3) Measure the resistance.

Standard resistance

(4) Reconnect the main body ECU connector.
(5) Reconnect the door courtesy switch connectors.

7

CHECK HARNESS AND CONNECTOR (REAR DOOR COURTESY SWITCH - MAIN BODY 
ECU)

22

21

17

10

7

24

13 14

16

18

8

19

9

11 12

15

23

20

1

2

3

4

5

6

Wire Harness Side:

RLCY

Front View

Front View

Front View

Door Courtesy Switch (LH Upper) Connector

Door Courtesy Switch (LH Lower) Connector

E7

J2

J3

Main Body ECU Connector

B138180E01

Tester Connection

Condition

Specified Condition

E7-11 (RLCY) - J2-2

Always

Below 1 

Ω

E7-11 (RLCY) - J3-1

Always

Below 1 

Ω

E7-11 (RLCY) or J2-2 or 

J3-1- Body ground

Always

10 k

Ω or higher

LI–58

LIGHTING  –  LIGHTING SYSTEM

LI

(b) Check the wire harness between the main body ECU 

and rear door courtesy switch RH (upper and lower).
(1) Disconnect the E7 main body ECU connector.
(2) Disconnect the I2 and I3 door courtesy switch 

connectors.

(3) Measure the resistance.

Standard resistance

(4) Reconnect the main body ECU connector.
(5) Reconnect the door courtesy switch connectors.

NG

OK

Inspection (See page

LI-122

)

OK:

Door courtesy switch is normal.

NG

OK

Inspection (See page

WS-94

)

OK:

Door courtesy switch is normal.

NG

OK

22

21

17

10

7

24

13 14

16

18

8

19

9

11 12

15

23

20

1

2

3

4

5

6

Wire Harness Side:

RRCY

Front View

Front View

Front View

Door Courtesy Switch (RH Upper) 
Connector

Door Courtesy Switch (RH Lower) 
Connector

E7

I2

I3

Main Body ECU Connector

B138180E02

Tester Connection

Condition

Specified Condition

E7-12 (RRCY) - I2-2

Always

Below 1 

Ω

E7-12 (RRCY) - I3-1

Always

Below 1 

Ω

E7-12 (RRCY) or I2-2 or 

I3-1- Body ground

Always

10 k

Ω or higher

REPAIR OR REPLACE HARNESS OR 
CONNECTOR

REPLACE MAIN BODY ECU

8

INSPECT BACK DOOR COURTESY SWITCH

REPLACE BACK DOOR COURTESY SWITCH

9

INSPECT BACK WINDOW LOCK ASSEMBLY (BACK WINDOW COURTESY SWITCH)

REPLACE BACK WINDOW LOCK 
ASSEMBLY

LIGHTING  –  LIGHTING SYSTEM

LI–59

LI

(a) Disconnect the L2 back door courtesy switch connector.
(b) Disconnect the S6 back window lock assembly 

connector.

(c) Measure the voltage.

Standard voltage

(d) Reconnect the back door courtesy switch connector.
(e) Reconnect the back window lock assembly connector.

NG

OK

10

CHECK HARNESS AND CONNECTOR (BACK DOOR COURTESY, BACK WINDOW 
COURTESY - MAIN BODY ECU)

1

2

3

4

1

Wire Harness Side:

Back Window Courtesy Switch 
Connector

Front View

Front View

Back Door Courtesy Switch 
Connector

S6

L2

B138181E01

Tester Connection

Condition

Specified Condition

L2-1 - Body ground

Always

11 to 14 V

S6-4 - Body ground

Always

11 to 14 V

REPAIR OR REPLACE HARNESS OR 
CONNECTOR

REPLACE MAIN BODY ECU

LI–60

LIGHTING  –  LIGHTING SYSTEM

LI

DESCRIPTION

Upon receiving signals from the switches, the main body ECU illuminates the lights.

WIRING DIAGRAM

INSPECTION PROCEDURE

(a) Connect the intelligent tester with CAN VIM to DLC3.
(b) Turn the ignition switch ON.
(c) Turn the intelligent tester on.

Illumination Circuit

1

PERFORM ACTIVE TEST BY INTELLIGENT TESTER

Main Body ECU

Room Light Assembly

DOME

ILE

LMRY

GND2

To Battery

GND1

Rear Room Light Assembly

B136094E01