Mitsubishi Outlander GS45X. Manual - part 215

THEFT ALARM

TSB Revision

CHASSIS ELECTRICAL

54A-857

STEP 10. Check ETACS-ECU connector C-317 for loose, 
corroded or damaged terminals, or terminals pushed back 
in the connector.
Q: Is ETACS-ECU connector C-317 in good condition?

YES : Go to Step 11.
NO :  Repair the damaged parts.

STEP 11. Check the Wiring harness between ETACS-ECU 
connector C-317 (terminal No. 2,9) and center panel unit 
connector C-104 (terminal No. 15,12).

• Check the input/output lines for open circuit and short cir-

cuit.

Q: Is the check result normal?

YES : Go to Step 12.
NO :  Repair the wiring harness between ETACS-ECU 

connector C-317 and center panel unit connector 
C-104.

STEP 12. Retest the system.
Q: Does the theft-alarm 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: The interior alarm does not work normally while the theft-alarm is triggered.

CAUTION

Before replacing the ECU, ensure that the power 
supply circuit, the ground circuit and the com-
munication circuit are normal.

.

TECHNICAL DESCRIPTION (COMMENT)

If the interior alarm does not work normally, the input 
signal circuits to the components below, 
ETACS-ECU, or combination meter built-in tone 
alarm may have a problem.

.

TROUBLESHOOTING HINTS

• The ETACS-ECU may be defective

• Combination meter 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:

• 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)

THEFT ALARM

TSB Revision

CHASSIS ELECTRICAL

54A-858

STEP 1. Using scan tool MB991958, diagnose the CAN bus 
line.

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-458

."

(2) Turn the ignition switch to the "ON" position.
(3) Diagnose the CAN bus line.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the CAN bus line found to be normal?

YES : Go to Step 2.
NO :  Repair the CAN bus line (Refer to GROUP 54C, 

Diagnosis 

P.54C-17

).

STEP 2. Using scan tool MB991958, read the ETACS-ECU 
diagnostic trouble code.
Check again if the DTC is set to the ETACS-ECU.
Q: Is the DTC set?

YES : Diagnose the ETACS-ECU (Refer to 

P.54A-733

).

NO :  Go to Step 3.

STEP 3. Using scan tool MB991958, check actuator test. 
(1) Connect scan tool MB991958 to the data link connector.
(2) Turn the ignition switch to the "ON" position.
(3) Set scan tool MB991958 to the actuator test mode.

• Item 12: Tone alarm

(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the check result normal?

YES : Go to Step 4.
NO :  Replace the combination meter.

STEP 4. Retest the system.
Check that the theft-alarm works normally.
Q: Does the theft-alarm 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.

ZC501967

AC404789

AC606941AB

MB991824

MB991827

MB991910

Data link

connector

THEFT ALARM

TSB Revision

CHASSIS ELECTRICAL

54A-859

Inspection Procedure 3: Theft-alarm horn does not sound while the theft-alarm system is triggered.

CAUTION

Before replacing the ECU, ensure that the power 
supply circuit, the ground circuit and the com-
munication circuit are normal.

Theft-alarm Horn Circuit

ETACS-ECU

FUSIBLE 
LINK

36

THEFT-ALARM 
HORN 
RELAY

THEFT-ALARM 
HORN

RELAY 
BOX

ENGINE 
COMPARTMENT

AC702950

AP

Connector: A-17X <3.0L Engine>

AC709381

AD

Connector: A-17X <2.4L Engine>

THEFT ALARM

TSB Revision

CHASSIS ELECTRICAL

54A-860

.

TECHNICAL DESCRIPTION (COMMENT)

If theft-horn does not sound, the theft-horn input sig-
nal circuit or the ETACS-ECU may be defective.

.

TROUBLESHOOTING HINTS

• Theft-alarm horn may be defective

• Theft-alarm horn relay 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:

• 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)

AC901112

Connectors: A-03, A-58

A-03 (B)

AI

A-58 (B)

ACA02655AW

Connector: C-312