Mitsubishi Outlander GS45X. Manual - part 66

FOG LIGHT

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CHASSIS ELECTRICAL

54A-261

STEP 1. ETACS-ECU coding data check.

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 the 

scan tool (M.U.T.-III) 

P.54A-257

."

(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 nor-
mally.
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.54A-153

).

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 

P.54A-732

).

NO :  Go to Step 4.

ZC501967

AC404789

AC702802

MB991824

MB991827

MB991910

Data link

connector

AB

FOG LIGHT

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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.

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

light" as normal condition?
YES : Go to Step 5.
NO :  Troubleshoot the ETACS-ECU. Refer to Inspection 

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

P.54A-818

.

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.54A-274

.

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.

Item No.

Item name

Normal 
condition

Item 212

Front fog light

ON

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

CAUTION

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.

(2) Measure the voltage between terminal 2 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 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.

AC702831CN

Relay box side: A-14X

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STEP 10. Check the wiring harness between fog light relay 
connector A-14X (terminal 1) and ETACS-ECU connector 
C-312 (terminal 4).
Check the communication line for open circuit.
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, cor-
roded, 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 (terminal 2) 
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.