Mitsubishi Galant 9G. Manual — part 135

INPUT SIGNAL PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-536

STEP 13. Check the wiring harness between front power
window sub switch connector E-04 (terminals 1 and 3) and
ETACS-ECU connector C-217 (terminals 33 and 34).

NOTE: Also check intermediate connector C-12 for loose, cor-
roded, or damaged terminals, or terminals pushed back in the
connector. If intermediate connector C-12 is damaged, repair or
replace the connector as described in GROUP 00E, Harness
Connector Inspection

P.00E-2

.

Q: Is the wiring harness between front power window sub

switch connector E-04 (terminal 1 and 3) and
ETACS-ECU connector C-217 (terminals 33 and 34) in
good condition?
YES : Replace the ETACS-ECU. If the central door locking

system works normally, input signal from the door lock
switch (front power window sub switch) should be
normal.

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. If the central
door locking system works normally, input signal from
the door lock switch (front power window sub switch)
should be normal.

AC305413AH

CONNECTOR: C-217

HARNESS SIDE

25

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29

21

22

23

24

30

31

32

33

34

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36

37

38

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41

42

43

44

JUNCTION BLOCK

(REAR VIEW)

AC305333

HARNESS SIDE

CONNECTOR: E-04

AK

AC305233

CONNECTOR:C-12

AB

INPUT SIGNAL PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-537

INSPECTION PROCEDURE N-7: ETACS-ECU does not receive any signal from the trunk lid latch
assembly.

.

CIRCUIT OPERATION

The ETACS-ECU operates the trunk light according
to signal from the trunk lid latch assembly.

.

TECHNICAL DESCRIPTION (COMMENT)

The trunk lid latch assembly input signal is used to
operate the trunk light. If the signal fails, this function
will not work normally.

.

TROUBLESHOOTING HINTS

• The trunk lid latch assembly may be defective

• The ETACS-ECU may be defective

• The wiring harness or connectors may have

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

TRUNK LID LATCH
ASSEMBLY

ETACS-ECU

Trunk Lid Latch Assembly Input Circuit

AC305231BA

CONNECTOR: C-28

AC305413

CONNECTOR: C-217

AK

JUNCTION BLOCK

(REAR VIEW)

AC305260

AC

CONNECTOR: F-05

INPUT SIGNAL PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-538

DIAGNOSIS

.

Required Special Tool:

• MB991223: Harness Set

STEP 1. Check trunk lid latch assembly connector F-05 for
loose, corroded or damaged terminals, or terminals
pushed back in the connector.
Q: Is trunk lid latch assembly connector F-05 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

. If the functions described in "CIRCUIT

OPERATION" work normally, the input signal from the
trunk lid latch assembly should be normal.

STEP 2. Check the trunk lid latch assembly.
Remove the trunk lid latch assembly. Refer to GROUP 42,
Trunk lid, Trunk lid latch inspection

P.42-64

.

Q: Is the trunk lid latch assembly in good condition?

YES : Go to Step 3.
NO : Replace the trunk lid latch assembly. The input signal

from the trunk lid latch assembly should be able to be
checked and the functions, which are described in the
"Technical Description (comment)," should work
normally.

STEP 3. Check ETACS-ECU connector C-217 for loose,
corroded or damaged terminals, or terminals pushed back
in the connector.
Q: Is 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

. If the functions described in "CIRCUIT

OPERATION" work normally, the input signal from the
trunk lid latch assembly should be normal.

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

AC305413AH

CONNECTOR: C-217

HARNESS SIDE

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21

22

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31

32

33

34

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36

37

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39

40

41

42

43

44

JUNCTION BLOCK

(REAR VIEW)

INPUT SIGNAL PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-539

STEP 4. Check the wiring harness between trunk lid latch
assembly connector F-05 (terminal 2) and ETACS-ECU
connector C-217 (terminal 37).

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 connector 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 2) and ETACS-ECU connector
C-217 (terminal 37) in good condition?
YES : Replace the ETACS-ECU. If the functions described

in "CIRCUIT OPERATION" work normally, the input
signal from the trunk lid latch assembly should be
normal.

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. If the
functions described in "CIRCUIT OPERATION" work
normally, the input signal from the trunk lid latch
assembly should be normal.

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