Mitsubishi Montero (2004+). Manual - part 776

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-361

NOTE: Also check junction block connectors D-210, D-211 and 
intermediate connector D-28 for loose, corroded, or damaged 
terminals, or terminals pushed back in the connector. If junction 
block connector D-210, D-211 or intermediate connector D-28 
is damaged, repair or replace the damaged component(s) as 
described in GROUP 00E, Harness Connector Inspection 

P.00E-2

.

Q: Is the wiring harness between combination meter 

connector D-04 (terminal 34) and the fusible link (2) in 
good condition?
YES : No action is necessary and testing is complete.
NO :  The wiring harness may be damaged or the 

connector(s) may have loose, corroded or damaged 
terminals, or terminals pushed back in the connector. 
Repair the wiring harness as necessary. Verify that 
the high-beam indicator light illuminates normally.

AC204191

CONNECTORS : D-210, D-211

AI

D-210

D-210

D-211(B)

D-211(B)

HARNESS SIDE

HARNESS SIDE

1

2

7 6

3

9

4

11

12

10

13

5

8

1

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-362

STEP 9. Check the wiring harness between combination 
meter connector D-04 (terminal 35) and ETACS-ECU 
connector D-224 (terminal 72).

NOTE: Also check joint connector D-29 for loose, corroded, or 
damaged terminals, or terminals pushed back in the connector. 
If joint connector D-29 is damaged, repair or replace the dam-
aged component(s) as described in GROUP 00E, Harness 
Connector Inspection 

P.00E-2

.

Q: Is the wiring harness between combination meter 

connector D-04 (terminal 35) and ETACS-ECU connector 
D-224 (terminal 72) in good condition?
YES : No action is necessary and testing is complete.
NO :  The wiring harness may be damaged or the 

connector(s) may have loose, corroded or damaged 
terminals, or terminals pushed back in the connector. 
Repair the wiring harness as necessary. Verify that 
the high-beam indicator light illuminates normally.

AC204188

CONNECTORS : D-04, D-29

D-04(GR)

AL

HARNESS SIDE

D-04(GR)

D-29

D-29

31

32

41 40

33

34

36

37

35

43

46 45 44

39

42

38

47

9 10

8

6 7

31 32

30

29

18 19 20 21

5

4

2

1

3

27

26

24

23

25

12 13 14 15 16 17

28

11
22
33

AC204174

CONNECTOR : D-224

AD

D-224(B)

D-224(B)

HARNESS SIDE

21

23

24

22

32

3433

31

26

27

28

3029

38

39

40

36

37

25

35

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-363

INSPECTION PROCEDURE J-9: Headlight and Taillight: Headlight automatic shutdown function does 
not work normally.

NOTE: This troubleshooting procedure requires the 
use of scan tool MB991958 and SWS monitor kit 
MB991862. For details on how to use the SWS mon-
itor, refer to "How to use SWS monitor 

P.54B-10

."

.

CIRCUIT OPERATION
The ETACS-ECU operates the headlight automatic 
shutdown function according to the following signals:

• Ignition switch (IG1)

• Driver's door switch

• Taillight switch

• Headlight switch

.

TECHNICAL DESCRIPTION (COMMENT)
If the function does not work normally, the input cir-
cuit system from the switches, the ETACS-ECU or 
the front-ECU may be defective (refer to "CIRCUIT 
OPERATION").

.

TROUBLESHOOTING HINTS

• The driver's door switch may be defective

• The column switch (lighting and turn-signal 

switch) may be defective

• The ETACS-ECU may be defective

• The front-ECU may be defective

• The wiring harness or connectors may have 

loose, corroded, or damaged terminals, or termi-
nals pushed back in the connector

DIAGNOSIS

Required Special Tools:

• MB991223: Harness Set

• MB991958: Scan Tool (MUT-III Sub Assembly)

• MB991824: Vehicle Communication Interface (V.C.I.)

• MB991827: MUT-III USB Cable

• MB991911: MUT-III Main Harness B

• MB991813: SWS Monitor Kit

• MB991806: SWS Monitor Cartridge

• MB991812: SWS Monitor Harness (For Column-ECU)

• MB991822: Probe Harness

Headlight Automatic Shutt-down Function

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-364

STEP 1. Verify the configuration function operation.
Q: Has the headlight automatic shutdown function been 

enabled by means of the adjustment function?
YES : Go to Step 2.
NO :  Enable the headlight automatic shutdown function 

been by means of the adjustment function. Refer to 

P.54B-635

.