Mitsubishi Galant 9G. Manual - part 43

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-168

POWER WINDOW MAIN SWITCH FUNCTION

The main switch is located on the driver’s door.
Raises the driver’s power window
When the driver’s power window switch on the power window 
main switch is pulled up, the system energizes its respective 
power window motor, and then the driver’s window glass rises.

Lowers the driver’s power window
When the driver’s power window switch on the power window 
main switch is pushed down, the system energizes its respec-
tive power window motor, and then the driver’s window glass 
lowers.

Lowers the driver’s power window by one-touch down 
function
When the driver’s power window switch on the power window 
main switch is pushed down fully, the system energizes its 
respective power window motor, and then the driver’s window 
glass moves to its lowest position.

Raises the passenger’s power window
When the passenger’s power window switch on the power win-
dow main switch is pulled up, the system energizes its respec-
tive power window motor, and then the passenger’s window 
glass rises.

AC106705

ON

OFF

ON

OFF

UPPER SIDE 

POWER
WINDOW
MOTOR

POWER
WINDOW
MAIN
SWITCH

DRIVER'S
POWER WINDOW
SWITCH UPPER 
SIDE

AH

AC106705

LOWER SIDE 

POWER
WINDOW
MOTOR

POWER
WINDOW
MAIN
SWITCH

DRIVER'S
POWER WINDOW
SWITCH LOWER 
SIDE

ON

OFF

ON

OFF

AI

AC106706

ON

OFF

ON

OFF

LOWER SIDE 

POWER
WINDOW
MOTOR

POWER
WINDOW
MAIN
SWITCH

DRIVER'S
POWER
WINDOW
SWITCH
LOWER SIDE

AC

AC106705

UPPER SIDE 

POWER
WINDOW
MOTOR

POWER
WINDOW
MAIN
SWITCH

ON

OFF

ON

OFF

PASSENGER'S
POWER WINDOW
SWITCH UPPER 
SIDE

AJ

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-169

Lowers the passenger’s power window
When the passenger’s power window switch on the power win-
dow main switch is pushed down, the system energizes its 
respective power window motor, and then the passenger’s win-
dow glass lowers.

POWER WINDOW SUB SWITCH FUNCTION

The sub switches are located on the passenger’s doors.
Raises the passenger’s power window
When the power window sub switch is pulled up, the system 
energizes its respective power window motor, and then the 
passenger’s window glass rises.

Lowers the passenger’s power window
When the power window sub switch is pushed down, the sys-
tem energizes its respective power window motor, and then the 
passenger’s window glass lowers.

Power window timer function
Even after the ignition is switched off, the ETACS-ECU keeps 
the power window relay activated for approximately 30 sec-
onds, enabling raising and lowering of the power windows by 
using the power window switches. After approximately 30 sec-
onds, the power window relay is deactivated.
During this timed operation, if the driver or passenger doors are 
opened, the power window relay is deactivated from that 
moment.

AC106705

LOWER SIDE 

POWER
WINDOW
MOTOR

POWER
WINDOW
MAIN
SWITCH

ON

OFF

ON

OFF

AK

PASSENGER'S
POWER WINDOW
SWITCH LOWER 
SIDE

AC106705

ON

OFF

ON

OFF

UPPER SIDE

 

POWER
WINDOW
MOTOR

PASSENGER'S
POWER 
WINDOW
SUB SWITCH

UPPER SIDE

AL

AC106705

LOWER SIDE

 

POWER
WINDOW
MOTOR

PASSENGER'S
POWER 
WINDOW
SUB SWITCH

LOWER SIDE

ON

OFF

ON

OFF

AM

AC200337 AC

ON

OFF

ON

OFF

ON 

(Open)

OFF 

(Closed)

IGNITION SWITCH (IG1)

POWER WINDOW 
RELAY

DRIVER'S OR FRONT 
PASSENGER'S
SEAT DOOR
SWITCH

t

t: 30 seconds

t

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-170

GENERAL CIRCUIT DIAGRAM FOR THE POWER WINDOWS

IGNITION
SWITCH (IG1)

ETACS-
ECU

POWER
WINDOW
RELAY

FUSIBLE
LINK

5

RELAY 
BOX
(FUSE     )

FRONT
DOOR 
SWITCH

(LH)

FRONT
DOOR 
SWITCH

(RH)

FRONT
POWER 
WINDOW
SUB 
SWITCH

(RH)

FRONT DOOR WINDOW
REGULATOR MOTOR 

(LH)

FRONT DOOR WINDOW
REGULATOR MOTOR 

(RH)

REAR DOOR WINDOW
REGULATOR MOTOR

(LH)

REAR DOOR WINDOW
REGULATOR MOTOR

(RH)

REAR
POWER 
WINDOW
SUB 
SWITCH

(LH)

REAR
POWER 
WINDOW
SUB 
SWITCH

(RH)

DATA LINK
CONNECTOR

POWER WINDOW MAIN SWITCH

22

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-171

INSPECTION PROCEDURE D-1: Power Windows: Power windows do not work at all.

NOTE: This troubleshooting procedure requires use 
of scan tool MB991958 and SWS monitor kit 
MB991813. For details on how to use the SWS mon-
itor, refer to "How to use SWS monitor 

P.54B-15

."

5

FUSIBLE LINK

FRONT DOOR 
WINDOW
REGULATOR
MOTOR 

(RH)

FRONT DOOR 
WINDOW
REGULATOR
MOTOR 

(LH)

REAR DOOR 
WINDOW
REGULATOR
MOTOR 

(LH)

REAR DOOR 
WINDOW
REGULATOR
MOTOR 

(RH)

POWER WINDOW
MAIN SWITCH

ETACS-
ECU

JUNCTION
BLOCK SIDE

POWER
WINDOW
RELAY

Power Window Relay Circuit