Mitsubishi Galant 9G. Manual - part 60

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-236

STEP 5. Check the wiring harness between trunk lid latch 
assembly connector F-05 (terminal 1) and ETACS-ECU 
connector C-217.

NOTE: Also check intermediate connector C-28 for loose, cor-
roded, or damaged terminals, or terminals pushed back in the 
connector. If intermediate connector C-28 is damaged, repair or 
replace the damaged component(s) as described in GROUP 
00E, Harness Connector Inspection 

P.00E-2

.

Q: Is the wiring harness between trunk lid latch assembly 

connector F-05 (terminal 1) and ETACS-ECU connector 
C-217 in good condition?
YES : Replace the ETACS-ECU. All the doors can be locked 

or unlocked by means of the transmitter.

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. The system 
should communicate with the sunroof-ECU normally.

AC305413AH

CONNECTOR: C-217

HARNESS SIDE

25

26

27

28

29

21

22

23

24

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

JUNCTION BLOCK

(REAR VIEW)

AC305260

CONNECTOR: F-05

AI

HARNESS SIDE

AC305231AE

CONNECTOR:C-28

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-237

SUNROOF

GENERAL DESCRIPTION CONCERNING THE SUNROOF

M1549021200223

The following ECU affects the functions and control 
of the sunroof.

Sunroof timer function
The ETACS-ECU enables opening and closing of the sunroof 
for 30 seconds after the ignition is switched off.
During this timed operation, if the driver's door or passenger’s 
door is opened, the sunroof timer function is deactivated from 
that moment.

FUNCTION

CONTROL ECU

Sunroof timer function

ETACS-ECU, sunroof motor assembly

AC106227

ON

OFF

Possible

Impossible

ON

(Open)
OFF

(Closed)

Ignition

switch

Sunroof

operation

Door

Switch

AC

30 s

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-238

GENERAL CIRCUIT DIAGRAM REGARDING THE SUNROOF

DATA LINK
CONNECTOR

FRONT 
DOOR 
SWITCH 

(LH)

SUNR

OOF-ECU

SUNROOF
SWITCH

SUNROOF
MOTOR
ASSEMBLY

IGNITION
SWITCH (IG2)

IGNITION
SWITCH (IG1)

22

RELAY BOX
(FUSE     )

FUSIBLE
LINK

5

ETACS-
ECU

JUNCTION BLOCK

JUNCTION
BLOCK

JUNCTION
BLOCK

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-239

INSPECTION PROCEDURE F-1: Sunroof: Sunroof does not operate.

SUNROOF-ECU

SUNROOF
SWITCH

OVERHEAD
CONSOLE
ASSEMBLY

SUNROOF MOTOR
ASSEMBLY

IGNITION
SWITCH (IG2)

FUSIBLE
LINK

5

JUNCTION 
BLOCK

JUNCTION 
BLOCK

Sunroof Motor Assembly Power Supply Circuit