Mitsubishi Montero Sport (2004+). Manual - part 537

HEADLIGHT

TSB Revision

CHASSIS ELECTRICAL

54-135

STEP 15. Check the harness wire between ETACS-ECU 
connector D-11 (terminal No.3) and ignition switch (IG1).

NOTE: After checking junction block connector D-08, check the 
wires. If junction block connector D-08 is damaged, repair or 
replace it. Refer to GROUP 00E, Harness Connector Inspec-
tion 

P.00E-2

.

Q: Is the harness wire between ETACS-ECU connector 

D-11 (terminal No.4) and ignition switch (IG1)?.
YES : Replace the ETACS-ECU. Then go to Step 16.
NO :  Repair or replace it. Refer to GROUP 00E, Harness 

Connector Inspection 

P.00E-2

. 

AC201941

M

3

1

4

2

CONNECTORS: D-08, D-11

AB

D-08 COMPONENT SIDE

D-11 COMPONENT SIDE

D-08

D-11

JUNCTION BLOCK (FRONT)

HEADLIGHT

TSB Revision

CHASSIS ELECTRICAL

54-136

STEP 16. Measure the voltage at the input signal from the 
fusible link number 8.

(1) Remove the ETACS-ECU and measure at the junction 

block side (connector D-11).

(2) Measure the voltage between terminal number 2 and body 

ground.

• The measured value should be approximately 12 volts 

(battery positive voltage).

Q: Does the measured voltage correspond with this range?

YES : Check that the malfunction eliminated.
NO :  Go to Step 17.

STEP 17. Check harness wire between ETACS-ECU 
connector D-11 (terminal No.2) and fusible link number 8.

AC201084

JUNCTION 
BLOCK (REAR)

D-11

COMPONENT SIDE

AB

CONNECTOR: D-11

1

2

3

4

5

7

9

10

6

8

11

12

AC004028

1

2

3

4

5

7

9

10

6

8

11

12

AC004028

AB

CONNECTOR D-11
(JUNCTION BLOCK SIDE)

AC201084

JUNCTION 
BLOCK (REAR)

D-11

COMPONENT SIDE

AB

CONNECTOR: D-11

HEADLIGHT

TSB Revision

CHASSIS ELECTRICAL

54-137

NOTE: After checking junction block connector D-01 and IOD 
storage connector A-54X, check the wires. If junction block 
connector D-01 and IOD storage connector A-54X are dam-
aged, repair or replace them. Refer to GROUP 00E, Harness 
Connector Inspection 

P.00E-2

.

Q: Is the harness wire between ETACS-ECU connector 

D-11 (terminal No.2) and fusible link number 8?
YES : Go to Step 18.
NO :  Repair or replace it. Refer to GROUP 00E, Harness 

Connector Inspection 

P.00E-2

. 

STEP 18. Measure the voltage at the input signal from the 
column switch (lighting switch).

(1) Remove the ETACS-ECU and measure at the junction 

block side (connector D-11).

(2) Turn the lighting switch on ("TAIL" or "HEAD" position).
(3) Measure the voltage between terminal number 5 and body 

ground.

• The measured value should be approximately 12 volts 

(battery positive voltage).

Q: Does the measured voltage correspond with this range?

YES : Check that the malfunction eliminated.
NO :  Go to Step 19.

AC200774

2

1

CONNECTOR: A-54X

AB

A-54X

AC200778

2

3

4

11 10 9 8 7

1
6

5

12

CONNECTOR: D-01

AB

D-01 COMPONENT SIDE

JUNCTION BLOCK (FRONT)

D-01

AC201084

JUNCTION 
BLOCK (REAR)

D-11

COMPONENT SIDE

AB

CONNECTOR: D-11

1

2

3

4

5

7

9

10

6

8

11

12

AC004033  

AC

D-11 
HARNESS CONNECTOR:
COMPONENT SIDE

HEADLIGHT

TSB Revision

CHASSIS ELECTRICAL

54-138

STEP 19. Check the harness wire between ETACS-ECU 
connector D-11 (terminal No.5) and column switch.

NOTE: After checking junction block connector D-01 and joint 
connector (3) C-72, check the wires. If junction block connector 
D-01 and joint connector (3) C-72 are damaged, repair or 
replace them. Refer to GROUP 00E, Harness Connector 
Inspection 

P.00E-2

.

Q: Is the harness wire between ETACS-ECU connector 

D-11 (terminal No.5) and column switch?
YES : Go to Step 20.
NO :  Repair or replace it. Refer to GROUP 00E, Harness 

Connector Inspection 

P.00E-2

. 

STEP 20. Check for continuity between terminals (except 
No. 4 and No. 6) of key reminder switch connector D-16.

(1) Measure at key reminder switch connector D-16 without 

disconnecting the connector.

(2) Check that there is no continuity between key reminder 

switch terminal No. 4 and each terminal (except terminal 
No. 6), as well as between key reminder switch terminal 
No.6 and each terminal (except terminal No. 4).

Q: Does continuity exist between terminals?

YES : Replace the key reminder switch. If the functions, 

which are described in "CIRCUIT OPERATION", work 
normally, the input signal from the key reminder 
switch should be normal.

NO :  Replace the ETACS-ECU. If the functions, which are 

described in "CIRCUIT OPERATION", work normally, 
the input signal from the key reminder switch should 
be normal.

AC201084

JUNCTION 
BLOCK (REAR)

D-11

COMPONENT SIDE

AB

CONNECTOR: D-11

AC200778

2

3

4

11 10 9 8 7

1
6

5

12

CONNECTOR: D-01

AB

D-01 COMPONENT SIDE

JUNCTION BLOCK (FRONT)

D-01

8

19

7

6

5

16

15

17 18

4

3

2

10 11 12 13

1
9

14

AC201910

CONNECTOR: C-72

AB

C-72 (B)

AC202060

4

5

3

1

6

7

2