Mitsubishi Outlander GS45X. Manual — part 62

REAR COMBINATION LIGHT

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CHASSIS ELECTRICAL

54A-245

STEP 2. Using scan tool MB991958, read the diagnostic
trouble code.

CAUTION

To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
(1) Connect scan tool MB991958. Refer to "How to connect

scan too (M.U.T.-III)

P.54A-227

."

(2) Turn the ignition switch to the "ON" position.
(3) Check whether the ETACS-ECU related DTC is set.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the DTC set?

YES : Diagnose the ETACS-ECU. Refer to

P.54A-732

.

NO : Go to Step 3.

STEP 3. Using scan tool MB991958, check data list.
Use the ETACS-ECU data list to check the signals related to
the taillight illumination.

• Turn the ignition switch to the "ACC" position.

• Turn the taillight switch to the "ON" position.

Q: Does scan tool MB991958 display the items "Taillight"

as normal condition?
YES <Normal condition is displayed for item.> : Go to

Step 4.

NO <Normal condition is not displayed for item No.
218.> : Troubleshoot the ETACS-ECU. Refer to Inspection

Procedure 12 "ETACS-ECU does not receive any
signal from the column switch signal"

P.54A-818

.

ZC501967

AC404789

AC702802

MB991824

MB991827

MB991910

Data link

connector

AB

Item No.

Item name

Normal
conditions

Item 218

Taillight

ON

REAR COMBINATION LIGHT

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STEP 4. Retest the system
Check that the taillight illuminates normally.
Q: Does the taillight work normally?

YES : The trouble can be an intermittent malfunction (Refer

to GROUP 00

− How to use

Troubleshooting/inspection Service Points

− How to

Cope with Intermittent Malfunction

P.00-15

).

NO : Replace the ETACS-ECU.

Inspection Procedure 2: One of the taillights does not illuminate.

.

Taillight Circuit

REAR
COMBINATION
LIGHT

(TAIL
:LH)

(TAIL
:RH)

ETACS-ECU

TAILLIGHT CONTROL CIRCUIT

ACA02655 AC

Connector: C-311

AC709496

AD

Connectors: D-09, D-14

D-14

D-09

REAR COMBINATION LIGHT

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TECHNICAL DESCRIPTION (COMMENT)

When one of the taillights does not illuminate, the
wiring harness, connector(s), or rear combination
light unit may have a problem, or the fuse may be
burned out.

.

TROUBLESHOOTING HINTS

• Malfunction of rear combination light unit

• The wiring harness or connectors may have

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

DIAGNOSIS

Required Special Tools:

• MB992006: Extra fine probe

• MB991223: Harness set

• MB991958: Scan Tool (M.U.T.-III Sub Assembly)

• MB991824: Vehicle Communication Interface (V.C.I.)

• MB991827: M.U.T.-III USB Cable

• MB991910: M.U.T.-III Main Harness A (Vehicles with

CAN communication system)

STEP 1. Check rear combination light connectors D-09
(RH) and D-14 (LH) for loose, corroded or damaged
terminals, or terminals pushed back in the connector.
Q: Is rear combination light connectors D-09 (RH) and D-14

(LH) in good condition?
YES : Go to Step 2.
NO : Repair the damaged parts

STEP 2. Resistance measurement at rear combination light
connectors D-09 (RH) and D-14 (LH).
(1) Disconnect the connector, and measure at the wiring

harness side.

(2) Measure the resistance between the connector of light

which does not illuminate and body ground.

•

Measure the resistance between rear combination light
connector D-09 (RH) (terminal No. 4) and body ground.

•

Measure the resistance between rear combination light
connector D-14 (LH) ( terminal No. 4) and body ground.

The measured value should be continuity exists (2
Ω or less).

Q: Does the measured resistance value correspond with

this range?
YES : Go to Step 4.
NO : Go to Step 3.

AC702818

Connector D-09
(Harness side)

AP

AC702818

Connector D-14
(Harness side)

AQ

REAR COMBINATION LIGHT

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STEP 3. Check the wiring harness between rear
combination light connectors D-09 (RH) and D-14 (LH)
(terminal No. 4) and ground.
Check the ground line for open circuit.
Q: Is the check result normal?

YES : Go to Step 4.
NO : Repair the wiring harness.

STEP 4. Check ETACS-ECU connectors C-311 for loose,
corroded or damaged terminals, or terminals pushed back
in the connector.
Q: Is ETACS-ECU connectors C-311 in good condition?

YES : Go to Step 5.
NO : Repair the damaged parts.

STEP 5. Check the wiring harness between rear
combination light connector D-09 (RH), D-14 (LH) and
ETACS-ECU connector C-311 (terminal No. 13) (RH),
(terminal No. 10) (LH).
Check the communication line for open or short circuit.
Q: Is the wiring harness between rear combination light

connector D-09 (RH), D-14 (LH) and ETACS-ECU
connector C-311 (terminal No. 13) (RH), (terminal No. 10)
(LH) in good condition?
YES : Go to Step 6.
NO : Repair the wiring harness.

STEP 6. Retest the system.
Check that the taillight illuminates normally.
Q: Does the taillight work normally?

YES : The trouble can be an intermittent malfunction (Refer

to GROUP 00

− How to use

Troubleshooting/inspection Service Points

− How to

Cope with Intermittent Malfunction

P.00-15

).

NO : Replace the rear combination light unit.