Mitsubishi Montero (2002-2004). Manual - part 273

SYMPTOM PROCEDURES

TSB Revision

SWS SYMPTOM PROCEDURES

54Bb-139

STEP 2. Check the input signal by using "DATA LIST" 
menu of the SWS monitor.
(1) Turn the ignition switch to the "ON" position before checking 

input signals from the ignition switch (IG1).

(2) Operate scan tool MB991502 according to the procedure 

below to display "ETACS ECU."

1. Select "SYSTEM SELECT."
2. Select "SWS."
3. Select "SWS MONITOR."
4. Select "DATA LIST."
5. Select "ETACS ECU."

(3) Check that normal conditions are displayed on the item 

described in the table below.

Q: Is the scan tool display "IG SW (IG1)" as normal 

condition?
YES : Go to Step 3.
NO :  Refer to Inspection Procedure O-2 "ETACS-ECU 

does not receive a signal from the ignition switch 
(IG1) 

P.54Bc-7

."

STEP 3. Check the power window relay.
Properly identify and remove the relay from the under-dash 
junction block and test the relay using the chart as a guide.

Q: Is the power window relay in good condition?

YES : Go to Step 4.
NO :  Replace the power window relay. Verify that the 

power windows function should now work normally.

ITEM NO.

ITEM NAME

NORMAL CONDITION

ITEM 30

IG SW (IG1)

ON

AC204222AB

16-pin

13-pin

MB991502

MB991862

BATTERY 
CONNECTION

TESTER 
CONNECTION

SPECIFIED 
CONDITION

Not applied

4 

− 5

Open circuit

• Connect terminal 

No.3 and the 
positive battery 
terminal

• Connect terminal 

No.1 and the 
negative battery 
terminal

Less than 2 
ohms

AC203858AB

1 2 3

4

5

1

3

4

5

POWER WINDOW
RELAY D-219

CONNECTOR: D-219

JUNCTION BLOCK 
(FRONT VIEW)

D-219

SYMPTOM PROCEDURES

TSB Revision

SWS SYMPTOM PROCEDURES

54Bb-140

STEP 4. Measure at power window relay connector D-219 
in order to check the fusible link (4) line of power supply 
system to power window relay.
(1) Disconnect power window relay connector D-219, and 

measure at the junction block side.

(2) Measure the voltage between terminal numbers 3, 5 and 

ground.

• The voltage should be approximately 12 volts (battery 

positive voltage).

Q: Is the measured voltage approximately 12 volts (battery 

positive voltage)?
YES : Go to Step 7.
NO :  Go to Step 5.

STEP 5. Check power window relay connector D-219 for 
loose, corroded or damaged terminals, or terminals 
pushed back in the connector.
Q: Is power window relay connector D-219 in good 

condition? 
YES : Go to Step 6.
NO :  Repair or replace the damaged component(s). Refer 

to GROUP 00E, Harness Connector Inspection 

P.00E-2

. Verify that the power windows function 

should now work normally.

1

2

3

4

5

ACX01571AB

CONNECTOR D-219
(JUNCTION BLOCK SIDE)

AC203850AC

CONNECTOR: D-219

JUNCTION BLOCK 
(FRONT VIEW)

D-219

4

5

1 2 3

D-219

SYMPTOM PROCEDURES

TSB Revision

SWS SYMPTOM PROCEDURES

54Bb-141

STEP 6. Check the wiring harness between power window 
relay connector D-219 (terminal 5) and fusible link (4).

NOTE: Also check junction block connector D-221 and inter-
mediate connector D-28 for loose, corroded or damaged termi-
nals, or terminals pushed back in the connectors. If junction 
block connector D-221 or intermediate connector D-28 is dam-
aged, repair or replace the damaged component(s) as 
described in GROUP 00E, Harness Connector Inspection 

P.00E-2

.

Q: Is the wiring harness between power window relay 

connector D-219 (terminal 5) and fusible link (4) 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 power windows function should now work 
normally.

ACX02274

FUSIBLE LINK (4)

AD

BATTERY

ACX02285

CONNECTORS: D-219, D-221

AQ

D-219

JUNCTION BLOCK (FRONT VIEW)

D-221

AC203859AB

CONNECTOR: D-28

D-28

D-28

SYMPTOM PROCEDURES

TSB Revision

SWS SYMPTOM PROCEDURES

54Bb-142

STEP 7. Check the ground circuit to the power window 
main switch. Test at power window main switch connector 
H-05.
(1) Disconnect power window main switch connector H-05 and 

measure the resistance available at the harness side.

(2) Measure the resistance value between terminal 3 and 

ground.

• The resistance should equal 2 ohms or less.

Q: Is the measured resistance 2 ohms or less?

YES : Go to Step 10.
NO :  Go to Step 8.

STEP 8. Check power window main switch connector H-05 
for loose, corroded or damaged terminals, or terminals 
pushed back in the connector.
Q: Is power window main switch connector H-05 in good 

condition?
YES : Go to Step 9.
NO :  Repair or replace the damaged component(s). Refer 

to GROUP 00E, Harness Connector Inspection 

P.00E-2

. Verify that the power windows function 

should now work normally.

AC203774

CONNECTOR: H-05

AF

DRIVER'S DOOR

H-05

H-05

(HARNESS SIDE)

1

2

3

4

5

6

7

8

9

10

11

12

13

14

ACX01606 AB

CONNECTOR H-05
(HARNESS SIDE)

AC203774

CONNECTOR: H-05

AF

DRIVER'S DOOR

H-05

H-05

(HARNESS SIDE)