Mitsubishi Outlander GS45X. Manual — part 1734
DIAGNOSIS <S-AWC(SUPER ALL WHEEL CONTROL)>
TSB Revision
AUTOMATIC TRANSAXLE
23C-241
INSPECTION PROCEDURE 2 : Malfunction of power supply circuit system
AC902491
Power supply system circuit
ETACS-
ECU
FUSIBLE
LINK
34
IGNITION
SWITCH (IG1)
IG1
RELAY
AWC-ECU
POWER
SUPPLY
ELECTRONIC
CONTROL
COUPLING
SOLENOID
(CENTER)
ELECTRONIC
CONTROL
COUPLING
SOLENOID
(FRONT)
AB
DIAGNOSIS <S-AWC(SUPER ALL WHEEL CONTROL)>
TSB Revision
AUTOMATIC TRANSAXLE
23C-242
.
COMMENTS ON TROUBLE SYMPTOM
AWC-ECU power supply circuit, ground circuit, or
AWC-ECU may have a problem.
.
PROBABLE CAUSES
• Malfunction of the ETACS-ECU
• Damaged harness wires and connectors
• Malfunction of AWC-ECU
AC901112
Connector: A-13
AH
AC901598
AD
Connector: B-28
B-28 (GR)
AC901075BO
Connector: C-31
AC901075BM
Connector: C-42
AC901075BL
Connectors: C-138, C-139
C-139
C-138 (GR)
AC702828BI
Connectors: C-309, C-313, C-315, C-317
C-315
C-309 (B)
C-313 (BR)
C-317
AC901080AQ
Connectors: D-113, D-138
D-113
D-138
DIAGNOSIS <S-AWC(SUPER ALL WHEEL CONTROL)>
TSB Revision
AUTOMATIC TRANSAXLE
23C-243
DIAGNOSTIC PROCEDURE
STEP 1. Check the fuse No.12, No.17
Visually check for open circuit in the fuse No.12, No.17.
Q: Is the check result normal?
YES : Go to Step 14.
NO : Go to Step 2.
STEP 2. Electronic control coupling solenoid (front)
connector, intermediate connector, AWC-ECU connector
check: B-28, A-13, C-42, C-139
Q: Is the check result normal?
YES : Go to Step 3.
NO : Repair the defective connector. Then go to Step 26.
STEP 3. Check the wiring harness between B-28 electronic
control coupling solenoid (front) connector terminal No.1
and C-139 AWC-ECU connector terminal No.1.
Check the power supply line for short circuit.
Q: Is the check result normal?
YES : Go to Step 4.
NO : Repair the wiring harness. Then go to Step 26.
STEP 4. Check the wiring harness between B-28 electronic
control coupling solenoid (front) connector terminal No.2
and C-139 AWC-ECU connector terminal No.14.
Check the ground line for short circuit.
Q: Is the check result normal?
YES : Go to Step 5.
NO : Repair the wiring harness. Then go to Step 26.
STEP 5. Check of the electronic control coupling solenoid
(Front)
Refer to
.
Q: Is the check result normal?
YES : Go to Step 6.
NO : Replace the transfer assembly (Refer to
).
Then go to Step 26.
STEP 6. Electronic control coupling solenoid (center)
connector, intermediate connector, AWC-ECU connector
check: D-138, C-138, D-113, C-139
Q: Is the check result normal?
YES : Go to Step 7.
NO : Repair the defective connector. Then go to Step 26.
DIAGNOSIS <S-AWC(SUPER ALL WHEEL CONTROL)>
TSB Revision
AUTOMATIC TRANSAXLE
23C-244
STEP 7. Check the wiring harness between D-138
electronic control coupling solenoid (center) connector
terminal No.2 and C-139 AWC-ECU connector terminal
No.2.
Check the power supply line for short circuit.
Q: Is the check result normal?
YES : Go to Step 8.
NO : Repair the wiring harness. Then go to Step 26.
STEP 8. Check the wiring harness between D-138
electronic control coupling solenoid (center) connector
terminal No.1 and C-139 AWC-ECU connector terminal
No.3.
Check the ground line for short circuit.
Q: Is the check result normal?
YES : Go to Step 9.
NO : Repair the wiring harness. Then go to Step 26.
STEP 9. Check of the electronic control coupling solenoid
(center)
Refer to GROUP 27C
− On-vehicle Service
Q: Is the check result normal?
YES : Go to Step 10.
NO : Replace the electronic control coupling (center)
(Refer to GROUP 27C
− Electronic Control Coupling
). Then go to Step 26.
STEP 10. Intermediate connector, AWC-ECU connector,
ETACS-ECU connector check: C-31, C-138, C-139, C-315
Q: Is the check result normal?
YES : Go to Step 11.
NO : Repair the defective connector. Then go to Step 26.
STEP 11. Check the wiring harness between C-139
AWC-ECU connector terminal No.12 and C-315
ETACS-ECU connector terminal No.4.
Check the power supply line for short circuit.
Q: Is the check result normal?
YES : Go to Step 12.
NO : Repair the wiring harness, and then replace the fuse
STEP 12. Intermediate connector, AWC-ECU connector,
ETACS-ECU connector check: C-138, C-139, C-313
Q: Is the check result normal?
YES : Go to Step 13.
NO : Repair the defective connector. Then go to Step 26.
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