Mitsubishi Galant (2004+). Manual - part 263

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-243

STEP 3. Check trunk lid latch assembly connector F-05 
and ETACS-ECU connector C-217 for loose, corroded or 
damaged terminals, or terminals pushed back in the 
connector.

Q: Is trunk lid latch assembly connector F-05 and 

ETACS-ECU connector C-217 in good condition?
YES : Go to Step 4.
NO :  Repair or replace the damaged component(s). Refer 

to GROUP 00E, Harness Connector Inspection 

P.00E-2

. Check that the headlights illuminate 

normally.

STEP 4. Check the trunk lid latch assembly.

Remove the trunk lid latch assembly. Refer to GROUP 42, 
Trunk lid, Trunk lid latch inspection 

P.42-66

.

Q: Does the windshield washer motor operate normally?

YES : Go to Step 5.
NO :  Replace the trunk lid latch assembly. Verify that the 

windshield washer works normally.

AC305413AH

CONNECTOR: C-217

HARNESS SIDE

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JUNCTION BLOCK

(REAR VIEW)

AC305260

CONNECTOR: F-05

AI

HARNESS SIDE

LEVER POSITION TESTER 

CONNECTION

SPECIFIED 
CONDITION

ON (Latch open)

2 

− Ground 

Less than 2 ohms

OFF (Latch shut)

2 

− Ground 

Open circuit

AC305827

1

2

AB

<FRONT 
VIEW>

ON

OFF

LEVER

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-244

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

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29

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JUNCTION BLOCK

(REAR VIEW)

AC305260

CONNECTOR: F-05

AI

HARNESS SIDE

AC305231AE

CONNECTOR:C-28

SYMPTOM PROCEDURES

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SIMPLIFIED WIRING SYSTEM (SWS)

54B-245

SUNROOF

GENERAL DESCRIPTION CONCERNING SUNROOF

M1549021200115

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

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SIMPLIFIED WIRING SYSTEM (SWS)

54B-246

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