Mitsubishi Outlander GS45X. Manual — part 1732
DIAGNOSIS <S-AWC(SUPER ALL WHEEL CONTROL)>
TSB Revision
AUTOMATIC TRANSAXLE
23C-233
STEP 5. Check whether the diagnostic trouble code is
reset.
Q: Is diagnostic trouble code No.U0431 set?
YES : Replace the AWC-ECU. (Refer to
go to Step 6.
NO : Intermittent malfunction. (Refer to GROUP 00
− How
to Cope with Intermittent Malfunction
).
STEP 6. Check whether the diagnostic trouble code is
reset.
Q: Is diagnostic trouble code No.U0431 set?
YES : Return to Step 1.
NO : This diagnosis is complete.
Code No.U1415: Coding incomplete/fail
CAUTION
• If there is any problem in the CAN bus lines,
an incorrect diagnostic trouble code may be
set. Prior to this diagnosis, diagnose the CAN
bus lines.
• Whenever the ECU is replaced, ensure that
the CAN bus lines are normal.
• When the diagnostic trouble code No.U1415
is set in AWC-ECU, the diagnostic trouble
code may also be set in ETACS-ECU. When
the diagnostic trouble code is set in
ETACS-ECU, perform the diagnosis of the
diagnostic trouble code for ETACS-ECU first.
.
OPERATION
AWC-ECU receives the vehicle information stored in
ETACS-ECU via CAN bus lines.
.
DIAGNOSTIC TROUBLE CODE SET
CONDITIONS
The code is set when the AWC-ECU coding has not
been performed.
.
PROBABLE CAUSES
• Malfunction of the CAN bus line
• Coding not implemented
• ETACS-ECU malfunction
• Malfunction of AWC-ECU
DIAGNOSTIC PROCEDURE
STEP 1. M.U.T.-III CAN bus diagnostics.
Use scan tool to perform the CAN bus diagnosis.
Q: Is the check result normal?
YES : Go to Step 2.
NO : Repair the CAN bus lines. (Refer to GROUP 54C
−
Troubleshooting
).
STEP 2. M.U.T.-III diagnostic trouble code.
Check the ETACS diagnostic trouble code. (Refer to GROUP
54A
− Troubleshooting
Q: Is the diagnostic trouble code set?
YES : Perform the relevant troubleshooting.
NO : Go to Step 3.
DIAGNOSIS <S-AWC(SUPER ALL WHEEL CONTROL)>
TSB Revision
AUTOMATIC TRANSAXLE
23C-234
STEP 3. ETACS-ECU coding data check
Using the M.U.T.-III, check if there is any abnormality to the
coding data stored in the ETACS-ECU. (Refer to GROUP 00
−
Coding Reference Table
Q: Is the check result normal?
YES : Go to Step 4.
NO : Replace the ETACS-ECU. (Refer to GROUP 54A
−
ETACS-ECU
STEP 4. Check whether the diagnostic trouble code is
reset.
Q: Is diagnostic trouble code No.U1415 set?
YES : Replace the AWC-ECU. (Refer to
go to Step 5.
NO : Intermittent malfunction. (Refer to GROUP 00
− How
to Cope with Intermittent Malfunction
).
STEP 5. Check whether the diagnostic trouble code is
reset.
Q: Is diagnostic trouble code No.U1415 set?
YES : Return to Step 1.
NO : This diagnosis is complete.
Code No.U1417: Coding Data Malfunction
CAUTION
• If there is any problem in the CAN bus lines,
an incorrect diagnostic trouble code may be
set. Prior to this diagnosis, diagnose the CAN
bus lines.
• Whenever the ECU is replaced, ensure that
the communication circuit is normal.
• When the diagnostic trouble code No.U1417
is set in AWC-ECU, the diagnostic trouble
code may also be set in ETACS-ECU. When
the diagnostic trouble code is set in
ETACS-ECU, perform the diagnosis of the
diagnostic trouble code for ETACS-ECU first.
.
OPERATION
AWC-ECU receives the vehicle information stored in
ETACS-ECU via CAN bus lines.
.
DIAGNOSTIC TROUBLE CODE SET
CONDITIONS
The code is set when the vehicle information
received from ETACS-ECU is not correct.
.
PROBABLE CAUSES
• Malfunction of the CAN bus line
• ETACS-ECU malfunction
• Malfunction of AWC-ECU
• ETACS-ECU has been interchanged between
two vehicles.
DIAGNOSTIC PROCEDURE
STEP 1. M.U.T.-III CAN bus diagnostics.
Use scan tool to perform the CAN bus diagnosis.
Q: Is the check result normal?
YES : Go to Step 2.
NO : Repair the CAN bus lines. (Refer to GROUP 54C
−
Troubleshooting
).
DIAGNOSIS <S-AWC(SUPER ALL WHEEL CONTROL)>
TSB Revision
AUTOMATIC TRANSAXLE
23C-235
STEP 2. M.U.T.-III diagnostic trouble code.
Check the ETACS diagnostic trouble code. (Refer to GROUP
54A
− Troubleshooting
Q: Is the diagnostic trouble code set?
YES : Perform the relevant troubleshooting.
NO : Go to Step 3.
STEP 3. ETACS-ECU coding data check
Using the M.U.T.-III, check if there is any abnormality to the
coding data stored in the ETACS-ECU. (Refer to GROUP 00
−
Coding Reference Table
Q: Is the check result normal?
YES : Go to Step 4.
NO : Repair the coding data or replace ETACS-ECU.
(Refer to GROUP 54A
− ETACS-ECU
).
Then go to Step 6.
STEP 4. Check the part number of ETACS-ECU
Check the part number of ETACS-ECU.
Q: Is the check result normal?
YES : Go to Step 5.
NO : Replace the ETACS-ECU (Refer to GROUP 54A
−
ETACS-ECU
STEP 5. Check whether the diagnostic trouble code is
reset.
Q: Is diagnostic trouble code No.U1417 set?
YES : Replace the AWC-ECU. (Refer to
go to Step 6.
NO : Intermittent malfunction. (Refer to GROUP 00
− How
to Cope with Intermittent Malfunction
).
STEP 6. Check whether the diagnostic trouble code is
reset.
Q: Is diagnostic trouble code No.U1417 set?
YES : Return to Step 1.
NO : This diagnosis is complete.
DIAGNOSIS <S-AWC(SUPER ALL WHEEL CONTROL)>
TSB Revision
AUTOMATIC TRANSAXLE
23C-236
Code No.U1425: Transaxle Data Malfunction
CAUTION
• If there is any problem in the CAN bus lines,
an incorrect diagnostic trouble code may be
set. Prior to this diagnosis, diagnose the CAN
bus lines.
• Whenever the ECU is replaced, ensure that
the CAN bus lines are normal.
.
OPERATION
AWC-ECU communicates with TCM via the CAN bus
lines.
.
DIAGNOSTIC TROUBLE CODE SET
CONDITIONS
The code is set when abnormality is detected in the
gear shift signal received from the TCM.
.
PROBABLE CAUSES
• Malfunction of the CAN bus line
• Malfunction of TCM
• Malfunction of AWC-ECU
DIAGNOSTIC PROCEDURE
STEP 1. M.U.T.-III CAN bus diagnostics.
Use scan tool to perform the CAN bus diagnosis.
Q: Is the check result normal?
YES : Go to Step 2.
NO : Repair the CAN bus lines. (Refer to GROUP 54C
−
Troubleshooting
).
STEP 2. M.U.T.-III diagnostic trouble code.
Check the A/T diagnostic trouble code. (Refer to
Q: Is the diagnostic trouble code set?
YES : Perform the relevant troubleshooting.
NO : Go to Step 3.
STEP 3. M.U.T.-III data list.
Item No.15: A/T Gear position (Refer to
).
Q: Is the check result normal?
YES : Intermittent malfunction. (Refer to GROUP 00
− How
to Cope with Intermittent Malfunction
).
NO : Go to Step 4.
STEP 4. Check whether the diagnostic trouble code is
reset.
Q: Is diagnostic trouble code No.U1425 set?
YES : Replace the AWC-ECU. (Refer to
go to Step 5.
NO : Intermittent malfunction. (Refer to GROUP 00
− How
to Cope with Intermittent Malfunction
).
STEP 5. Check whether the diagnostic trouble code is
reset.
Q: Is diagnostic trouble code No.U1425 set?
YES : Return to Step 1.
NO : This diagnosis is complete.
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