Mitsubishi Montero (2004+). Manual - part 756

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-281

STEP 6. Check the wiring harness between rear washer 
motor connector I-08 (terminal 1) and ground.
Q: Is the wiring harness between rear washer motor 

connector I-08 (terminal 1) and ground in good 
condition?
YES : No action is necessary and testing is complete.
NO :  The wiring harness may be damaged or the connector 

may have loose, corroded or damaged terminals, or 
terminals pushed back in the connector. Repair the 
wiring harness as necessary. Verify that the rear 
washer works normally.

STEP 7. Check ETACS-ECU connector D-222 for loose, 
corroded or damaged terminals, or terminals pushed back 
in the connector.
Q: Is ETACS-ECU connector D-222 in good condition?

YES : Go to Step 8.
NO :  Repair or replace the damaged component(s). Refer 

to GROUP 00E, Harness Connector Inspection 

P.00E-2

. Verify that the rear washer works normally.

ACX02293 AT

CONNECTOR: I-08

I-08 (B)

2

1

(HARNESS SIDE)

I-08 (B)

AC204174

CONNECTOR : D-222

AB

1

2

3

5

6

4

9 8

121110

13

15 14

16

17

7

19

20

18

JUNCTION BLOCK SIDE

D-222

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-282

STEP 8. Check the wiring harness between rear washer 
motor connector I-08 (terminal 2) and ETACS-ECU 
connector D-222 (terminal 3).

AC204174

CONNECTOR : D-222

AB

1

2

3

5

6

4

9 8

121110

13

15 14

16

17

7

19

20

18

JUNCTION BLOCK SIDE

D-222

ACX02293 AT

CONNECTOR: I-08

I-08 (B)

2

1

(HARNESS SIDE)

I-08 (B)

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-283

NOTE: Also check intermediate connectors D-111,G-10 and 
junction block connector D-221 for loose, corroded, or dam-
aged terminals, or terminals pushed back in the connector. If 
intermediate connectors D-111,G-10 and junction block con-
nector D-221 is damaged, repair or replace damaged compo-
nent(s) as described in GROUP 00E, Harness Connector 
Inspection 

P.00E-2

.

Q: Is the wiring harness between rear washer motor 

connector I-08 (terminal 2) and ETACS-ECU connector 
D-222 (terminal 3) in good condition?
YES : Replace the ETACS-ECU. Verify that the rear washer 

works normally.

NO :  The wiring harness may be damaged or the connector 

may have loose, corroded or damaged terminals, or 
terminals pushed back in the connector. Repair the 
wiring harness as necessary. Verify that the rear 
washer works normally.

AC203860AC

D-111

CONNECTOR: D-111

D-111

ACX02285

CONNECTOR: D-221

BX

JUNCTION BLOCK (FRONT VIEW)

D-221

D-221

AC204524

CONNECTOR: G-10

AC

G-10

G-10

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-284

SEAT BELT WARNING LIGHT

GENERAL DESCRIPTION CONCERNING SEAT BELT WARNING LIGHT

M1549023900143

The ECU related to the seat belt warning light func-
tion is as follows.

Seat belt warning light function
If any of the following conditions is met with the igni-
tion switch at "ON" or "ST", the ETACS-ECU illumi-
nates the indicator light by using the driver's seat belt 
switch signal.

• The ETACS-ECU illuminates the indicator light 

for six seconds if the ignition switch is turned 
"ON" while the seat belt switch is on (the driver's 
seat belt is not fastened).

• The ETACS-ECU flashes the indicator light 12 

cycles (after 0.5 seconds) if the seat belt switch is 
on (driver's seat belt is not fastened) when sixty 
seconds or more have elapsed since the ignition 
switch is turned "ON". One cycle consists of 
five-second "on" and then three-second "off".

NOTE: The ETACS-ECU stops flashing the indicator 
light immediately when the seat belt witch is off 
(driver's seat belt is fastened) or the ignition switch is 
turned to the "OFF" or "ACC" position while the seat 
belt tone alarm function is working.

General circuit diagram for the seat belt warning light function

FUNCTION

CONTROL ECU

Seat belt warning light function

ETACS-ECU

AC308837

T

T: 3 seconds

6 seconds 

60 seconds 

1 cycle
(approximately 8 seconds) 

12 cycles (approximately 90 seconds) 

5 seconds 

ON

OFF

ON

 (UNFASTENED)

OFF

 (FASTENED)

Ignition
switch (IG1)

Seat
belt
switch

ON 

(ILLUMINATED)

OFF 

(NOT ILLUMINATED)

Seat belt 
warning
light

AB