Mitsubishi Outlander GS45X. Manual - part 205

ETACS

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CHASSIS ELECTRICAL

54A-817

Inspection Procedure 11: ETACS-ECU does not receive any signal from the hazard warning light 
switch.

.

TECHNICAL DESCRIPTION (COMMENT)

If there is an error to the hazard warning light switch 
input signal, the hazard warning light switch signal is 
no longer output to the communication line.

.

TROUBLESHOOTING HINTS

• The center panel unit may be defective

• The ETACS-ECU may be defective

• The wiring harness or connectors may have 

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

DIAGNOSIS

Required Special Tools:

• MB991223: Harness Set

• MB992006: Extra Fine Probe

AC703440

Hazard Warning Switch Input Circuit

ETACS-
ECU

CENTER
PANEL
UNIT

HAZARD
WARNING
SWITCH

AB

AC703148 AD

Connector: C-104

C-104

ACA02655BB

Connector: C-301

ETACS

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CHASSIS ELECTRICAL

54A-818

STEP 1. Check center panel unit connector C-104 for 
loose, corroded or damaged terminals, or terminals 
pushed back in the connector. 
Q: Is center panel unit connector C-104 in good condition?

YES : Go to Step 2.
NO :  Repair or replace the damaged component(s). Refer 

to GROUP 00E, Harness Connector Inspection 

P.00E-2

. Check that the input signal of hazard 

warning light switch is normal.

STEP 2. Check the hazard warning light switch.
Remove the center panel unit. Then check continuity between 
the switch terminal and switch body.

Q: Is the hazard warning light switch in good condition?

YES : Go to Step 3.
NO :  Replace the center panel unit. Check that the input 

signal of hazard warning light switch is normal.

STEP 3. Check ETACS-ECU connector C-301 for loose, 
corroded or damaged terminals, or terminals pushed back 
in the connector. 
Q: Is ETACS-ECU connector C-301 in good condition?

YES : Go to Step 4.
NO :  Repair or replace the damaged component(s). Refer 

to GROUP 00E, Harness Connector Inspection 

P.00E-2

. Check that the input signal of hazard 

warning light switch is normal.

STEP 4. Check the wiring harness between center panel 
unit connector C-104 (terminal 5) and ETACS-ECU 
connector C-301 (terminal 19).
Check the input lines for open circuit and short circuit.
Q: Is the wiring harness between center panel unit 

connector C-104 (terminal 5) and ETACS-ECU connector 
C-301 (terminal 19) in good condition?
YES : Replace the ETACS-ECU. Check that the input signal 

of hazard warning light switch is normal.

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. Check that 
the input signal of hazard warning light switch is 
normal.

Switch position

Tester 
connection

Specified 
condition

Released

5 

− switch body

Open circuit

Pressed

5 

− switch body

Less than 2 ohms

ETACS

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CHASSIS ELECTRICAL

54A-819

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

.

TECHNICAL DESCRIPTION (COMMENT)

The ETACS-ECU receives the column switch signal 
via the LIN communication. If there is an abnormality 
to column switch or LIN bus line, the lights and 
wiper/washer do not work normally.

.

TROUBLESHOOTING HINTS

• The column switch may be defective

• The LIN bus line may be defective

DIAGNOSIS

Required Special Tools:

• 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. Using scan tool MB991958, read the ETACS 
diagnostic trouble code.
Check the DTC is set to the ETACS-ECU.

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-730

."

(2) Turn the ignition switch from "LOCK" (OFF) position to "ON" 

position.

(3) Check if DTC is set.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the DTC set?

YES : Troubleshoot the ETACS-ECU (Refer to 

P.54A-733

).

NO :  Go to Step 2.

ZC501967

AC404789

AC702802

MB991824

MB991827

MB991910

Data link

connector

AB

ETACS

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CHASSIS ELECTRICAL

54A-820

STEP 2. Column switch check

• Check the continuity for windshield wiper and windshield 

washer switch. Refer to 

P.54A-321

.

• Check the continuity for column switch (switch body part). 

Refer to 

P.54A-321

.

Q: Is the check result normal?

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 column switch.