Mitsubishi Galant (2004+). Manual - part 252

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-199

5

FUSIBLE LINK

POWER
WINDOW
RELAY

POWER 
WINDOW 
MAIN 
SWITCH

ETACS-ECU

REAR DOOR WINDOW
REGULATOR MOTOR 

(RH)

REAR POWER 
WINDOW SUB 
SWITCH 

(RH)

REAR DOOR WINDOW
REGULATOR MOTOR 

(LH)

REAR POWER 
WINDOW SUB 
SWITCH 

(LH)

<REAR SIDE>

Power Window (rear) Circuit

AC305233

C-12

C-13

CONNECTORS: C-12,C-13

AD

AC305231AG

CONNECTORS: C-26,C-28

C-26

C-28

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-200

.

CIRCUIT OPERATION
power window regulator motors raise and lower the 
door windows when the front passenger's or rear 
passenger's sub switch is moved to "UP" or "DOWN" 
position.

.

TECHNICAL DESCRIPTION (COMMENT)
A power window sub switch or power window regula-
tor motor may be defective. Or, the power window 
lock switch (incorporated in the power window main 
switch in the driver’s door) may remain pressed in 
the "LOCK" position.

.

TROUBLESHOOTING HINTS

• The power window main switch may be defective

• The front power window sub switch may be 

defective

• The rear power window sub switches may be 

defective

• The front power window regulator motor (RH) 

may be defective

• The rear power window regulator motors may be 

defective

• The wiring harness or connectors may have 

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

AC305415

C-203

C-215

AE

CONNECTORS: C-203,C-215

JUNCTION BLOCK

(FRONT VIEW)

AC306543

E-04

E-03 (GR)

E-06

E-07 (GR)

CONNECTORS: E-03, E-04, E-06, E-07

AB

AC306544

E-12

E-17

E-16

AB

CONNECTORS: E-12, E-16, E-17

AC305258

CONNECTOR:D-19

AD

AC305264

CONNECTOR:D-36

AC

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-201

DIAGNOSIS

Required Special Tool:

• MB991223: Harness Set

STEP 1. Check power window main switch connector E-12 
for loose, corroded or damaged terminals, or terminals 
pushed back in the connector.

Q: Is power window main switch connector E-12 in good 

condition?
YES : Go to Step 2.
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 

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

AC305262

3
9

4

12

14

6

13

5

1110

8

2

7

1

HARNESS SIDE

CONNECTOR:E-12

AC

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-202

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.

SWITCH POSITION

TESTER 
CONNECTION

SPECIFIED 
CONDITION

FRONT 
(LH)

UP

8 

− 13, 9 − 12,

Less than 2 ohms

OFF

8 

− 12, 9 − 12

Less than 2 ohms

DOWN 9 

− 13, 8 − 12

Less than 2 ohms

FRONT 
(RH)

UP

3 

− 13, 11 − 12*

Less than 2 ohms

OFF

3 

− 11, 3 − 12*, 11 − 

12*

Less than 2 ohms

DOWN 11 

− 13, 3 − 12*

Less than 2 ohms

REAR (LH)

UP

1 

− 13, 2 − 12*

Less than 2 ohms

OFF

1 

− 2, 1 − 12*, 2 − 

12*

Less than 2 ohms

DOWN 2 

− 13, 1 − 12*

Less than 2 ohms

REAR (RH) UP

13 

− 14, 6 − 12*

Less than 2 ohms

OFF

6 

− 14, 6 − 12*, 12* 

− 14

Less than 2 ohms

DOWN 6 

− 13, 12* − 14

Less than 2 ohms

AC210745

12

7

1

8

2

10

9

3

11

13

5

4

14

6