Mitsubishi Galant (2004+). Manual - part 314

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-447

STEP 6. Check the ground circuit to the front dome light. 
Measure the resistance at map light assembly connector 
D-02 <without sunroof> or overhead console assembly 
connector D-03 <with sunroof>.

(1) Disconnect map light assembly connector D-02 <without 

sunroof> or overhead console assembly connector D-03 
<with sunroof> 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 8.
NO :  Go to Step 7.

AC305265

AB

CONNECTORS: D-02, D-03

D-02
D-03

D-02

D-03

HARNESS SIDE

AC209364 HA

CONNECTOR D-02
(HARNESS SIDE)

AC209364HB

CONNECTOR D-03
(HARNESS SIDE)

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-448

STEP 7. Check the wiring harness between map light 
assembly connector D-02 (terminal 3) <without sunroof> 
or overhead console assembly connector D-03 (terminal 3) 
<with sunroof> and ground.

Q: Is the wiring harness between map light assembly 

connector D-02 (terminal 3) <without sunroof> or 
overhead console assembly connector D-03 (terminal 3) 
<with sunroof> and ground in good condition?
YES : Replace the overhead console assembly. 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.

AC305265

AB

CONNECTORS: D-02, D-03

D-02
D-03

D-02

D-03

HARNESS SIDE

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-449

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.

AC305413 AG

CONNECTOR: C-219

JUNCTION BLOCK SIDE

JUNCTION BLOCK

(REAR VIEW)

AC305265

AB

CONNECTORS: D-02, D-03

D-02
D-03

D-02

D-03

HARNESS SIDE

AC305268

CONNECTOR: D-07

AF

HARNESS SIDE

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-450

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.

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.

AC305268

CONNECTOR: D-07

AF

HARNESS SIDE

AC209364HC

CONNECTOR D-07
(HARNESS SIDE)

AC305268

CONNECTOR: D-07

AF

HARNESS SIDE