Mitsubishi Outlander (2013+). Manual - part 417
TROUBLESHOOTING
ELECTRONICALLY CONTROLLED 4WD
27C-38
• ETACS-ECU malfunction
• Malfunction of 4WD-ECU
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-III CAN bus diagnostics.
Use M.U.T.-III 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 other system diagnosis code.
Check the ETACS diagnosis code (Refer to GROUP
54A
− Troubleshooting ).
Q: Is the diagnosis 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 the
engine-related, T/M-related, ASC-related abnormal-
ity 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. Then go to Step
5.
STEP 4. Check whether the diagnosis code is
reset.
Q: Is diagnosis code No.U1195 set?
YES :
Replace the 4WD-ECU (Refer to
Then go to Step 5.
NO :
Intermittent malfunction (Refer to GROUP
00
− How to Cope with Intermittent
Malfunction ).
STEP 5. Check whether the diagnosis code is
reset.
Q: Is diagnosis code No.U1195 set?
YES :
Return to Step 1.
NO :
This diagnosis is complete.
Code No.U119A: Chassis No. mismatch
CAUTION
• If there is any problem in the CAN bus lines,
an incorrect diagnosis 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 diagnosis code No.U119A is set in
4WD-ECU, the diagnosis code may also be
set in ETACS-ECU. When the diagnosis code
is set in ETACS-ECU, perform the diagnosis
of the diagnosis code for ETACS-ECU first.
OPERATION
4WD-ECU receives the chassis number stored in
ETACS-ECU via CAN bus lines.
DIAGNOSIS CODE SET CONDITION
This diagnosis code is set when the abnormality
below is detected:
• The chassis number received from ETACS-ECU
is not correct.
PROBABLE CAUSES
• Malfunction of the CAN bus line
• Chassis number not written
• ETACS-ECU malfunction
• Malfunction of engine-ECU
• Malfunction of 4WD-ECU
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-III CAN bus diagnostics
Use the M.U.T.-III to diagnose the CAN bus lines.
Q: Is the check result normal?
YES :
Go to Step 2.
NO :
Repair the CAN bus line (Refer to GROUP
54C
− Troubleshooting ).
STEP 2. M.U.T.-III other system diagnosis code
Check the engine diagnosis code (Refer to GROUP
13A
− Troubleshooting ).
Q: Is the diagnosis code set?
YES :
Perform the relevant troubleshooting.
NO :
Go to Step 3.