Mitsubishi Galant 9G. Manual — part 109

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-432

STEP 8. Check the wiring harness between map light
assembly connector D-02 (terminals 1 and 2) <without
sunroof> or overhead console assembly connector D-03
(terminals 1 and 2) <with sunroof> and ETACS-ECU
connector C-219 (terminals 6 and 5).
Q: Is the wiring harness between map light assembly

connector D-02 (terminals 1 and 2) <without sunroof> or
overhead console assembly connector D-03 (terminals
1 and 2) <with sunroof> and ETACS-ECU connector
C-219 (terminals 6 and 5) in good condition?
YES : Replace the map light assembly <without sunroof> or

overhead console assembly <with sunroof>. Check
that the front dome light illuminates normally.

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. Check that
the front dome light illuminates normally.

STEP 9. Check rear dome light connector D-07 for loose,
corroded or damaged terminals, or terminals pushed back
in the connector.
Q: Is rear dome light connector D-07 in good condition?

YES : Go to Step 10.
NO : Repair or replace the damaged component(s). Refer

to GROUP 00E, Harness Connector Inspection

P.00E-2

. Check that the rear dome light illuminates

normally.

STEP 10. Check the rear dome light bulb.
Q: Is the rear dome light bulb in good condition?

YES : Go to Step 11.
NO : Replace the rear dome light bulb. Check that the rear

dome light illuminates normally.

AC305413 AG

CONNECTOR: C-219

JUNCTION BLOCK SIDE

JUNCTION BLOCK

(REAR VIEW)

AC400530

CONNECTORS: D-02, D-03

D-02
D-03

AE

D-02

D-03

HARNESS SIDE

AC400532

CONNECTOR: D-07

AE

HARNESS SIDE

SYMPTOM PROCEDURES

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SIMPLIFIED WIRING SYSTEM (SWS)

54B-433

STEP 11. Check the ground circuit to the rear dome light.
Measure the resistance at rear dome light connector D-07.
(1) Disconnect rear dome light connector D-07 and measure

the resistance available at the wiring harness side of the
connector.

(2) Measure the resistance value between terminal 3 and

ground.

• The resistance should be 2 ohms or less.

Q: Is the measured resistance 2 ohms or less?

YES : Go to Step 13.
NO : Go to Step 12.

STEP 12. Check the wiring harness between rear dome
light connector D-07 and ground.

NOTE: Also check intermediate connector D-37 for loose, cor-
roded, or damaged terminals, or terminals pushed back in the
connector. If intermediate connector D-37 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 rear dome light

connector D-07 and ground in good condition?
YES : Replace the rear dome light. Check that the rear

dome light illuminates normally.

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. Check that
the rear dome light illuminates normally.

AC400532

CONNECTOR: D-07

AE

HARNESS SIDE

AC209364HC

CONNECTOR D-07
(HARNESS SIDE)

AC400532

CONNECTOR: D-07

AE

HARNESS SIDE

AC400530

AG

CONNECTOR: D-37

SYMPTOM PROCEDURES

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SIMPLIFIED WIRING SYSTEM (SWS)

54B-434

STEP 13. Check the wiring harness between rear dome
light connector D-07 (terminals 1 and 2) and ETACS-ECU
connector C-219 (terminals 6 and 5).

NOTE: Also check intermediate connector D-37 for loose, cor-
roded, or damaged terminals, or terminals pushed back in the
connector. If intermediate connector D-37 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 rear dome light

connector D-07 (terminals 1 and 2) and ETACS-ECU
connector C-219 (terminals 6 and 5) in good condition?
YES : Replace the rear dome light. Check that the rear

dome light illuminates normally.

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. Check that
the rear dome light illuminates normally.

AC305413 AG

CONNECTOR: C-219

JUNCTION BLOCK SIDE

JUNCTION BLOCK

(REAR VIEW)

AC400532

CONNECTOR: D-07

AE

HARNESS SIDE

AC400530

AG

CONNECTOR: D-37

SYMPTOM PROCEDURES

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SIMPLIFIED WIRING SYSTEM (SWS)

54B-435

STEP 14. Check the input signal (by using the pulse check
mode of the monitor).
Check the input signals from the trunk lid latch assembly.

• Check whether scan tool MB991958 sounds or not when

the trunk is opened.

(1) Operate scan tool MB991958 according to the procedure

below to display "Pulse checking."
a. Select "Interactive Diagnosis."
b. Select "System Select."
c. Select "SWS."
d. Select "Pulse Checking."

Q: Does scan tool MB991958 sound when the trunk is

opened and closed?
YES : Go to Step 15.
NO : Refer to Inspection Procedure N-7 "ETACS-ECU

does not receive any signal from the trunk lid latch
assembly

P.54B-537

."

AC305412

AB

MB991910

DATA LINK

CONNECTOR

MB991824

MB991827