Mitsubishi 380. Manual - part 43

SYMPTOM PROCEDURES

SIMPLIFIED WIRING SYSTEM (SWS)

54B-169

STEP 2. Check each switch on the power window main 
switch for continuity.
(1) Remove the power window main switch. Refer to GROUP 

42, Door, Door Glass and Regulator 

P.42-39

.

(2) Check continuity when each switch on the power window 

main switch is operated to "UP" or "DOWN" position.

NOTE: *: Set the window lock switch to UNLOCK position.

Q: Is the power window main switch normal?

YES : Go to Step 3.
NO :  Replace the power window main switch. When the 

power window sub switch is operated, the power 
windows should raise and lower normally.

STEP 3. Check the power window lock switch.

Q: Is the power window lock switch in the "UNLOCK" 

position?
YES : Go to Step 4.
NO :  Operate the power window lock switch to the 

"UNLOCK" position. When the power window sub 
switch is operated, the power windows should raise 
and lower normally.

STEP 4. Check which door window does not move.

Q: Which door window does not move?

Front passenger's side : Go to Step 5.
Rear passenger (LH) : Go to Step 14.
Rear passenger (RH) : Go to Step 23.

SWITCH POSITION

TESTER 
CONNECTION

SPECIFIED 
CONDITION

FRONT 
(RH)

UP

12 

− 10, 14 − 2,

Less than 2 ohms

OFF

12 

− 2, 14 − 2

Less than 2 ohms

DOWN 14 

− 10, 12 − 2

Less than 2 ohms

FRONT 
(LH)

UP

7 

− 10, 9 − 2*

Less than 2 ohms

OFF

7 

− 9, 7 − 2*, 9 − 2* Less than 2 ohms

DOWN 9 

− 10, 7 − 2*

Less than 2 ohms

REAR (LH)

UP

1 

− 10, 3 − 2*

Less than 2 ohms

OFF

1 

− 3, 1 − 2*, 3 − 2* Less than 2 ohms

DOWN 2 

− 13, 1 − 12*

Less than 2 ohms

REAR (RH)

UP

10 

− 6, 4 − 2*

Less than 2 ohms

OFF

4 

− 6, 4 − 2*, 2* − 6 Less than 2 ohms

DOWN 4 

− 10, 2* − 6

Less than 2 ohms

16DB338A

12

7

1

8

2

10

9

3

11

13

5

4

14

6

SYMPTOM PROCEDURES

SIMPLIFIED WIRING SYSTEM (SWS)

54B-170

STEP 5. Check front power window sub switch connector 
E-12 and front power window regulator motor (LH) 
connector E-13 for loose, corroded or damaged terminals, 
or terminals pushed back in the connector.
Q: Are front power window sub switch connector E-12 and 

front power window regulator motor (LH) connector 
E-13 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

. When the front power window sub switch 

(LH) is operated, the front power window (LH) should 
raise and lower normally.

STEP 6. Check the front power window sub switch for 
continuity.
(1) Remove the front power window sub switch. Refer to 

GROUP 42, Door, Door Glass and Regulator 

P.42-39

.

(2) Check continuity when the front power window sub switch is 

operated to "UP" or "DOWN" position.

Q: Is the front power window sub switch normal?

YES : Go to Step 7.
NO :  Replace the front power window sub switch. When 

the front power window sub switch is operated, the 
front power window should raise and lower normally.

16DB344A

E-13(GR)

E-12

CONNECTORS:E-13,E-12

HARNESS SIDE

E-13

E-12

HARNESS SIDE

SWITCH 
POSITION

TESTER 
CONNECTION

SPECIFIED 
CONDITION

UP

4 

− 5, 7 − 6

Less than 2 ohms

OFF

4 

− 5, 7 − 8

DOWN

4 

− 6, 7 − 8

16DB345A

8

3

4 5

1

2

6 7

<FRONT>

SYMPTOM PROCEDURES

SIMPLIFIED WIRING SYSTEM (SWS)

54B-171

STEP 7. Check the front power window regulator motor 
(LH).
(1) Remove the front power regulator assembly (LH). Refer to 

GROUP 42, Door, Door Glass and Regulator 

P.42-39

.

(2) Connect a battery to the motor terminal, and check that the 

motor runs freely.

Q: Is the front power window regulator motor (LH) normal?

YES : Go to Step 8.
NO :  Replace the front power regulator assembly (LH). 

When the front power window sub switch (LH) is 
operated, the front power window (LH) should raise 
and lower normally.

STEP 8. Check the battery power supply circuit to the front 
power window sub switch. Measure the voltage at front 
power window sub switch connector E-12.
(1) Disconnect front power window sub switch connector E-12 

and measure the voltage available at the wiring harness 
side of the connector.

(2) Measure the voltage between terminal 6 and ground.

• The voltage should measure approximately 12 volts 

(battery positive voltage).

Q: Is the measured voltage approximately 12 volts (battery 

positive voltage)?
YES : Go to Step 11.
NO :  Go to Step 9.

BATTERY CONNECTION

SLIDER POSITION

• Connect terminal 1 to the 

negative battery terminal

• Connect terminal 2 to the 

positive battery terminal

UP

• Connect terminal 2 to the 

negative battery terminal

• Connect terminal 1 to the 

positive battery terminal

DOWN

1 2

AC204901AB

16DB346A

CONNECTOR:E-12

HARNESS SIDE

16DB347A

CONNECTOR E-12

(HARNESS SIDE)

SYMPTOM PROCEDURES

SIMPLIFIED WIRING SYSTEM (SWS)

54B-172

STEP 9. Check power window relay connector C-203 for 
loose, corroded or damaged terminals, or terminals 
pushed back in the connector.

Q: Is power window relay connector C-203 in good 

condition?
YES : Go to Step 10.
NO :  Repair or replace the damaged component(s). Refer 

to GROUP 00E, Harness Connector Inspection 

P.00E-2

. When the front power window sub switch 

(LH) is operated, the front power window (LH) should 
raise and lower normally.

STEP 10. Check the wiring harness between power 
window relay connector C-203 (terminal 4) and front power 
window sub switch connector E-12 (terminal 6).

16DB333A

JUNCTION BLOCK SIDE

C-203

HARNESS SIDE

C-215

CONNECTORS: C-203,C-215

16DB346A

CONNECTOR:E-12

HARNESS SIDE