Mitsubishi Outlander GS45X. Manual — part 1339
SYMPTOM PROCEDURES
TSB Revision
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
). 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
).
STEP 8. Retest the system.
Q: Does the malfunction occur again?
YES : Diagnose again from Step 1.
NO : The procedure is complete.
SYMPTOM PROCEDURES
TSB Revision
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
TSB Revision
ELECTRONIC CONTROL AWD
27C-81
.
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
TSB Revision
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
(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).
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