Mitsubishi Outlander GS45X. Manual - part 1339

SYMPTOM PROCEDURES

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ELECTRONIC CONTROL AWD

27C-79

STEP 3. Voltage measurement at the AWD-ECU connector
(1) Disconnect the C-128 AWD-ECU connector.
(2) Turn the ignition switch to the ON position.
(3) Measure the voltage between the C-128 wiring harness 

side connector terminals No.3, No.4 (Ignition switch "ON") 
and the body ground.

OK: System voltage

Q: Is the check result normal?

YES : Go to Step 5.
NO :  Go to Step 4.

STEP 4. Wiring harness check
Check the wiring harness between the C-128 AWD-ECU con-
nector (terminal No.4) and the C-313 ETACS-ECU connector 
(terminal No.2) for damage or other problem.
Q: Is the wiring harness in good condition?

YES : Go to Step 7.
NO :  Repair the wiring harness. Then go to Step 8.

STEP 5. Resistance measurement at the AWD-ECU 
connector
(1) Disconnect the C-128 AWD-ECU connector.
(2) Measure the resistance between the C-128 wiring harness 

side connector terminals No. 10 and the body ground.

OK: Continuity exists (2 ohm or less)

Q: Is the check result normal?

YES : Go to Step 7.
NO :  Go to Step 6.

STEP 6. Wiring harness check
Check the wiring harness between the C-128 AWD-ECU con-
nector (terminal No.10) and the body ground for damage or 
other problem.
Q: Is the wiring harness in good condition?

YES : Go to Step 7.
NO :  Repair the wiring harness. Then go to Step 8.

STEP 7. Retest the system.
Q: Does the malfunction occur again?

YES : Replace AWD-ECU (Refer to 

P.27C-95

). Then go to 

Step 8.

NO :  The trouble can be an intermittent malfunction (Refer 

to GROUP 00 

− How to Use Troubleshooting/How to 

Cope with Intermittent Malfunctions 

P.00-15

).

STEP 8. Retest the system.
Q: Does the malfunction occur again?

YES : Diagnose again from Step 1.
NO :  The procedure is complete.

SYMPTOM PROCEDURES

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ELECTRONIC CONTROL AWD

27C-80

Inspection Procedure 2: The Switch Position of the Drive Mode Selector does not Match with the 
Indicator Display in the Combination Meter.

ETACS-
ECU

IGNITION
SWITCH (IG1)

IG1
RELAY

AWD-ECU

DRIVE MODE
SELECTOR

ACA02788

AC901227AE

C-32

C-138

Connectors: C-32, C-128, C-138

C-128

AC901228 AD

C-313
(BR)

ETACS-ECU 
(front view)

Connectors: C313, C-317

C-317

SYMPTOM PROCEDURES

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ELECTRONIC CONTROL AWD

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.

DRIVE MODE SELECTOR POSITION AND 
INDICATOR DISPLAY (NORMAL)

.

COMMENTS ON TROUBLE SYMPTOM

•  If the drive mode selector switch position and indicator dis-

play in the combination meter do not match, the drive mode 
selector, wiring harness connector between AWD-ECU and 
drive mode selector, wiring harness connector in the ground 
circuit for the drive mode selector, AWD-ECU or combina-
tion meter may have a problem.

.

TROUBLESHOOTING HINTS

• Damaged wiring harness and connectors

• Malfunction of drive mode selector

• AWD-ECU malfunction

• Combination meter malfunction

AC703680AC

Connector: C-23

Switch position

Indicator display

2WD (FWD)

−(Not illuminated)

4WD (AWD)

4WD

LOCK

4WD, LOCK

ACA00932

Drive mode indicator

AD

AC703688AB

Drive mode 
selector

SYMPTOM PROCEDURES

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ELECTRONIC CONTROL AWD

27C-82

DIAGNOSIS

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

• MB991824: Vehicle Communication Interface

• MB991827: M.U.T.-III USB Cable

• MB991910: M.U.T.-III Main Harness A

STEP 1. Check the following connector:
Check the connectors below for improper engagement, termi-
nal damage or terminal drawn in the connector case.

• C-128 AWD-ECU connector

• C-138 intermediate connector

• C-32 Intermediate connector

• C-23 Drive mode selector connector

Q: Are the connectors and terminals in good condition?

YES : Go to Step 2.
NO :  Repair the connector(s) or terminal(s). Then go to 

Step 9.

STEP 2. Resistance measurement between the drive mode 
selector connector terminals
(1) Remove the drive mode selector (Refer 

P.27C-96

).

(2) Measure the resistance between the following terminals.

Q: Is the check result normal?

YES : Go to Step 3.
NO :  Replace the drive mode selector. Then go to Step 9.

Switch position

Terminal 
number

Normal 
conditions

2WD (FWD)

1 

− 2

Continuity 
exists (2 ohm 
or less).

2 

− 3

No continuity

4WD (AWD)

1 

− 2

No continuity

2 

− 3

LOCK

1 

− 2

No continuity

2 

− 3

Continuity 
exists (2 ohm 
or less).