Mitsubishi 380. Manual — part 74

SYMPTOM PROCEDURES

SIMPLIFIED WIRING SYSTEM (SWS)

54B-293

STEP 7. 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 8.
NO : Replace the headlamp (RH) bulb. Verify that the

headlamps illuminate normally.

STEP 8. Check the ground circuit to the front Headlamp
(RH). Measure the resistance at front combination lamp
(RH) connector A-32.
(1) Disconnect front combination lamp (RH) connector A-32

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

(2) Measure the resistance value between terminal (5) 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 9.

STEP 9. Check the wiring harness between headlamp (RH)
connector A-32 (terminal 5) and ground.
Q: Is the wiring harness between headlamp (RH) connector

A-32 (terminal 5) and ground 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.

16DB433A

A-32

CONNECTORS: A-32

16DB437A

CONNECTOR A-32

(HARNESS SIDE)

16DB437A

CONNECTOR A-32

(HARNESS SIDE)

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.

AC305977AH

CONNECTOR: A-11X

RELAY BOX SIDE

16DB434A

A-20

CONNECTOR: A-20

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.

AC305977AH

CONNECTOR: A-11X

RELAY BOX SIDE

16DB434A

A-20

CONNECTOR: A-20

AC305977AH

CONNECTOR: A-11X

RELAY BOX SIDE

16DB433A

A-32

CONNECTORS: A-32

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.

AC305977AH

CONNECTOR: A-11X

RELAY BOX SIDE

16DB433A

A-32

CONNECTORS: A-32