Mitsubishi Outlander XL. Manual — part 1011

STEP 1. ETACS-ECU coding data check.

ZC501967

AC404789

ZC5019680000

MB991824

MB991827

MB991910

Data link

connector

To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before
connecting or disconnecting scan tool MB991958.

(1)

Connect scan tool MB991958. Refer to "How to connect the
scan tool (M.U.T.-III) P.54Af-4."

(2)

Turn the ignition switch to the "ON" position.

(3)

Read out the option coding information in ETACS-ECU.
(Refer to GROUP 00, Coding Table .)

(4)

Check that the "Front fog light" is set to "YES."

(5)

Turn the ignition switch to the "LOCK" (OFF) position.

Q:Is the ETACS-ECU coding data normal?

YES:

Go to Step 2.

NO:

Operate scan tool MB991958 to set the option coding

"Front fog light" to "Yes," and check the trouble symptom.

STEP 2. Check that the tail/stop lights and headlights
operate.
Check that the tail/stop lights and headlights illuminate normally.

Q:Do the tail/stop lights and headlights operate normally?

YES:

Go to Step 3.

NO:

Check the tail/stop lights and the headlights (Refer

to trouble symptom chart P.54Ac-114).

STEP 3. Using scan tool MB991958, read the other system
diagnostic trouble code.
Check if DTC is set to the ETACS-ECU.

(1)

Turn the ignition switch to the "ON" position.

(2)

Check whether the ETACS-ECU related DTC is set.

(3)

Turn the ignition switch to the "LOCK" (OFF) position.

Q:Is the DTC set?

YES:

Troubleshoot the ETACS-ECU (Refer to GROUP 54Ad,

Diagnosis P.54Ad-8).

NO:

Go to Step 4.

STEP 4. Using scan tool MB991958, check data list.
Use the ETACS-ECU data list to check the signals related to the
fog light function.

｠

Turn the ignition switch to the "ACC" position.

｠

Turn the fog light switch to ON.

Item No.

Item name

Normal
condition

Item 212

Front fog light

ON

Q:Does scan tool MB991958 display the items "Front fog

light" as normal condition?

LIGHTING

54Ac-117

DIAGNOSIS

YES:

Go to Step 5.

NO:

Troubleshoot the ETACS-ECU.Refer to GROUP 54Ad,

Diagnosis - Inspection Procedure 12 "ETACS-ECU does not
receive any signal from the column switch signal." P.
54Ad-89.

STEP 5. Check fog light relay connector A-14X for loose,
corroded or damaged terminals, or terminals pushed back
in the connector.

Q:Is fog light relay connector A-14X in good condition?

YES:

Go to Step 6.

NO:

Repair or replace the damaged component(s). Refer to

GROUP 00E, Harness Connector Inspection P.00E-2. Verify
that the fog lights illuminate normally.

STEP 6. Check the fog light relay.
Refer to P.54Ac-187.

Q:Is the fog light relay in good condition?

YES:

Go to Step 7.

NO:

Replace the fog light relay. Verify that the fog

lights illuminate normally.

STEP 7. Check the battery power supply circuit to the fog
light relay. Measure the voltage at fog light relay connector
A-14X.

The top and bottom of the fog light relay are difficult to
identify. Prior to inspection, confirm the triangle mark on
the relay box.

(1)

Disconnect fog light relay connector A-14X and measure the
voltage available at the relay box side of the connector.

ZC5010400050

CONNECTOR A-14X
(RELAY BOX SIDE)

(2)

Measure the voltage between terminal 3 and ground, and
between terminal 4 and ground.

｠

The voltage should measure approximately 12 volts
(battery positive voltage).

Q:Is the measured voltage approximately 12 volts (battery

positive voltage)?

YES:

Go to Step 9.

NO:

Go to Step 8.

STEP 8. Check the wiring harness between fog light relay
connector A-14X (terminal 2 and 4) and fusible link (36).

｠

Check the power supply line for open circuit.

Q:Is the wiring harness between fog light relay connector

A-14X (terminal 2 and 4) and fusible link (36) in good

condition?

YES:

Go to Step 13.

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

54Ac-118

LIGHTING

DIAGNOSIS

harness as necessary. Verify that the front fog lights
illuminate normally.

STEP 9. Check ETACS-ECU connector C-312 for loose,
corroded or damaged terminals, or terminals pushed back
in the connector.

Q:Is ETACS-ECU connector C-312 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. Verify
that the fog lights illuminate normally.

STEP 10. Check the wiring harness between fog light relay
connector A-14X (terminal 1) and ETACS-ECU connector
C-312 (terminal 4).

Q:Is the wiring harness between fog light relay connector

A-14X (terminal 1) and ETACS-ECU connector C-312

(terminal 4) in good condition?

YES:

Go to Step 11.

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 fog lights
illuminate normally.

STEP 11. Check the wiring harness between fog light relay
connector A-14X (terminal 3) and fog light (LH) connector
A-41 or fog light (RH) connector A-51 (terminal 2).

NOTE:

Also check intermediate connector A-46 for loose,

corroded, or damaged terminals, or terminals pushed back in
the connector. If intermediate connector A-46 is damaged,
repair or replace the connector as described in GROUP 00E,
Harness Connector Inspection P.00E-2.

｠

Check the power supply line for open circuit.

Q:Is the wiring harness between fog light relay connector

A-14X (terminal 3) and fog light (LH) connector A-41

(terminal 2) or fog light (RH) connector A-51 in good

condition?

YES:

Go to Step 12.

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 fog lights
illuminate normally.

STEP 12. Check the wiring harness between fog light (LH)
connector A-41 or fog light (RH) connector A-51 (terminal 1)
and ground.

NOTE:

Also check intermediate connector A-46 for loose,

corroded, or damaged terminals, or terminals pushed back in
the connector. If intermediate connector A-46 is damaged,
repair or replace the connector as described in GROUP 00E,
Harness Connector Inspection P.00E-2.

｠

Check the ground wires for open circuit.

LIGHTING

54Ac-119

DIAGNOSIS

Q:Is the wiring harness between fog light (LH) connector

A-41 or fog light (RH) connector A-51 (terminal 1) and

ground in good condition?

YES:

Go to Step 13.

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 fog lights
illuminate normally.

STEP 13. Retest the system.

Q:Does the fog lights illuminate in good condition?

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: The right or left fog light does not illuminate.

M15410900169USA0000010000

Whenever the ECU is replaced, ensure that the input and
output signal circuits are normal.

54Ac-120

LIGHTING

DIAGNOSIS