2005 MITSUBISHI 380 ECU

SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-278
STEP 5. Check the wiring harness between intermediate
connector C-25 (terminal 8) and front-ECU connector
A-11X (terminal 4).
Q: Is the wiring harness between intermediate connector
C-25 (terminal 8) 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 lamp (RH), and the taillamp (RH) should
illuminate normally.
STEP 6. Check intermediate connector C-25 for loose,
corroded or damaged terminals, or terminals pushed back
in the connector.
Q: Is intermediate connector C-25 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 taillamp (LH) and the licence plate lamp
should illuminate normally.

SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-285
STEP 21. Check the wiring harness between front
combination lamp (LH) connector A-20 (terminal 5) and
ground.
Q: Is the wiring harness between front combination lamp
(LH) connector A-20 (terminal 5) and ground in good
condition?
YES : Replace the front combination lamp socket (LH).
Verify that the front parking lamp (LH) 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. Verify that
the front park lamp (LH) illuminates normally.
STEP 22. Check the wiring harness between front
combination lamp (LH) connector A-20 (terminal 2) and
front-ECU connector A-11X (terminal 4).
Q: Is the wiring harness between front combination lamp
(LH) connector A-20 (terminal 2) 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. Verify that
the front park lamp (LH) illuminates normally.

SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-287
STEP 26. Check the wiring harness between front
combination lamp (RH) connector A-32 (terminal 5) and
ground.
Q: Is the wiring harness between front combination lamp
(RH) connector A-32 (terminal 5) and ground in good
condition?
YES : Replace the front combination lamp socket (RH).
Verify that the front park lamp (RH) 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. Verify that
the front park lamp (RH) illuminates normally.
STEP 27. Check the wiring harness between front
combination lamp (RH) connector A-32 (terminal 2) and
front-ECU connector A-11X (terminal 4).
Q: Is the wiring harness between front combination lamp
(RH) connector A-32 (terminal 2) 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. Verify that
the front parking lamp (RH) illuminates normally.

SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-294
STEP 10. Check headlamp (LH) connector A-20 and
front-ECU connector A-11X for loose, corroded or
damaged terminals, or terminals pushed back in the
connector.
Q: Are headlamp (LH) connector A-20 and front-ECU
connector A-11X in good condition?
YES : Go to Step 11.
NO : Repair or replace the damaged component(s). Refer
to GROUP 00E, Harness Connector Inspection
P.00E-2. Check that the headlamps illuminate
normally.
STEP 11. Check headlamp (LH) bulb.
(1) Remove the headlamp (LH) bulb.
(2) Verify that the headlamp (LH) bulb is not damaged or
burned out.
Q: Is headlamp (LH) bulb normal?
YES : Go to Step 12.
NO : Replace the headlamp (LH) bulb. Verify that the
headlamps illuminate normally.

SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-295
STEP 12. Check the wiring harness between headlamp
(LH) connector A-20 (terminal 6) and front-ECU connector
A-11X (terminal 6).
Q: Is the wiring harness between headlamp (LH) connector
A-20 (terminal 6) and front-ECU connector A-11X
(terminal 6) 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. Verify that
the headlamps illuminate normally.
STEP 13. Check headlamp (RH) connector A-32 and
front-ECU connector A-11X for loose, corroded or
damaged terminals, or terminals pushed back in the
connector.
Q: Are headlamp (RH) connector A-32 and front-ECU
connector A-11X in good condition?
YES : Go to Step 14.
NO : Repair or replace the damaged component(s). Refer
to GROUP 00E, Harness Connector Inspection
P.00E-2. Check that the headlamps illuminate
normally.

SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-296
STEP 14. Check the headlamp (RH) bulb.
(1) Remove the headlamp (RH) bulb.
(2) Verify that the headlamp (RH) bulb is not damaged or
burned out.
Q: Is headlamp (RH) bulb normal?
YES : Go to Step 15.
NO : Replace the headlamp (RH) bulb. Verify that the
headlamps illuminate normally.
STEP 15. Check the wiring harness between headlamp
(RH) connector A-32 (terminal 6) and front-ECU connector
A-11X (terminal 6).
Q: Is the wiring harness between headlamp (RH) connector
A-32 (terminal 6) and front-ECU connector A-11X
(terminal 6) 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. Verify that
the headlamps illuminate normally.

SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-297
STEP 16. Check headlamp (LH) connector A-20 and
front-ECU connector A-11X for loose, corroded or
damaged terminals, or terminals pushed back in the
connector.
Q: Are headlamp (LH) connector A-20 and front-ECU
connector A-11X in good condition?
YES : Go to Step 17.
NO : Repair or replace the damaged component(s). Refer
to GROUP 00E, Harness Connector Inspection
P.00E-2. Verify that the headlamps illuminate
normally.
STEP 17. Check headlamp (LH) bulb.
(1) Remove the headlamp (LH) bulb.
(2) Verify that the headlamp (LH) bulb is not damaged or
burned out.
Q: Is headlamp (LH) bulb normal?
YES : Go to Step 18.
NO : Replace the headlamp (LH) bulb. Verify that the
headlamps illuminate normally.

SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-298
STEP 18. Check the wiring harness between headlamp
(LH) connector A-20 (terminals 3 and 4) and front-ECU
connector A-11X (terminal 10).
Q: Is the wiring harness between headlamp (LH) connector
A-20 (terminals 3 and 4) and front-ECU connector A-11X
(terminal 10) in good condition?
YES : Go to step 19.
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. Verify that
the headlamps illuminate normally.
STEP 19. Check the ground circuit to the front Headlamp
(LH). Measure the resistance at front combination lamp
(LH) connector A-20.
(1) Disconnect front combination lamp (LH) connector A-20
and measure the resistance available at the wiring harness
side of the connector.
(2) Measure the resistance value between terminals (5 and 1)
and ground.
The resistance should be 2 ohms or less.
Q: Is the measured resistance 2 ohms or less?
YES : .No action is necessary and testing is complete.
NO : Go to Step 20.