Mitsubishi Galant (2004+). Manual — part 284

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-327

.

TECHNICAL DESCRIPTION (COMMENT)
If the front parking lights the front side marker lights,
the taillights or the license plate light do not illumi-
nate, their bulb may be defective.

.

TROUBLESHOOTING HINTS

• The front parking light bulb may be defective

• The front side marker light bulb may be defective

• The stop/taillight bulb may be defective

• The license plate light bulb may be defective

• The wiring harness or connectors may have

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

.

AC305977AE

CONNECTOR: A-11X

AC305210 AG

CONNECTORS: A-17, A-18

A-17

A-18 (GR)

AC305206

A-34 (GR)

A-35

CONNECTORS: A-34, A-35

AQ

AC305231

C-25

C-01

CONNECTORS: C-01, C-25

BE

AC305415

CONNECTORS: C-204, C-214

AQ

C-204

C-214

AC305260

CONNECTORS: F-06, F-06, F-09

AD

F-03

F-06

F-09

SYMPTOM PROCEDURES

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SIMPLIFIED WIRING SYSTEM (SWS)

54B-328

DIAGNOSIS

Required Special Tool:

• MB991223: Harness Set

STEP 1. Check the operation of each light.
Q: Which light does not illuminate?

front parking light (LH), taillight (LH), front side marker
light (LH) and license plate light : Go to Step 2.
front parking light (RH), taillight (RH) and front side
marker light (RH) : Go to Step 4.
taillight (LH) and license plate light : Go to Step 6.
taillight (LH) : Go to Step 8.
taillight (RH) : Go to Step 13.
front parking light (LH) : Go to Step 19.
front parking light (RH) : Go to Step 25.
license plate light : Go to Step 31.
front side marker lights : Go to Step 37.
front side marker light (LH) : Go to Step 38.
front side marker light (RH) : Go to Step 44.
All lights : Refer to Inspection Procedure H-1 "The taillights

do not illuminate normally

P.54B-307

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STEP 2. Check joint connector C-01 and front-ECU
connector A-11X for loose, corroded or damaged
terminals, or terminals pushed back in the connector.

Q: Are joint connector C-01 and front-ECU connector

A-11X in good condition?
YES : Go to Step 3.
NO : Repair or replace the damaged component(s). Refer

to GROUP 00E, Harness Connector Inspection

P.00E-2

. The front parking light (LH), taillight (LH),

front side marker light (LH) and the license plate light
should illuminate normally.

AC305977AH

CONNECTOR: A-11X

RELAY BOX SIDE

AC305231

CONNECTOR: C-01

BO

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-329

STEP 3. Check the wiring harness between joint connector
C-01 (terminal 1) and front-ECU connector A-11X (terminal
4).

Q: Is the wiring harness between joint connector C-01

(terminal 1) and front-ECU connector A-11X (terminal 4)
in good condition?
YES : No action is necessary and testing is complete.
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 front
parking light (LH), taillight (LH), front side marker light
(LH) and the license plate light should illuminate
normally.

STEP 4. Check joint connector C-01 and front-ECU
connector A-11X for loose, corroded or damaged
terminals, or terminals pushed back in the connector.

Q: Are joint connector C-01 and front-ECU connector

A-11X in good condition?
YES : Go to Step 5.
NO : Repair or replace the damaged component(s). Refer

to GROUP 00E, Harness Connector Inspection

P.00E-2

. The front parking light (RH), the front side

marker light (RH) and the taillight (RH) should
illuminate normally.

AC305977AH

CONNECTOR: A-11X

RELAY BOX SIDE

AC305231

CONNECTOR: C-01

BO

AC305977AH

CONNECTOR: A-11X

RELAY BOX SIDE

AC305231

CONNECTOR: C-01

BO

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-330

STEP 5. Check the wiring harness between joint connector
C-01 (terminal 18) and front-ECU connector A-11X
(terminal 4).

Q: Is the wiring harness between joint connector C-01

(terminal 18) and front-ECU connector A-11X (terminal
4) in good condition?
YES : No action is necessary and testing is complete.
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 front
parking light (RH), the front side marker light (RH) and
the taillight (RH) should illuminate normally.

STEP 6. Check joint connector C-01 for loose, corroded or
damaged terminals, or terminals pushed back in the
connector.

Q: Is joint connector C-01 in good condition?

YES : Go to Step 7.
NO : Repair or replace the damaged component(s). Refer

to GROUP 00E, Harness Connector Inspection

P.00E-2

. The taillight (LH) and the license plate light

should illuminate normally.

AC305977AH

CONNECTOR: A-11X

RELAY BOX SIDE

AC305231

CONNECTOR: C-01

BO

AC305231

CONNECTOR: C-01

BO