Mitsubishi Outlander (2013+). Manual - part 474
TROUBLESHOOTING
ACTIVE STABILITY CONTROL SYSTEM (ASC)
35C-71
STEP 4. M.U.T.-III other system diagnosis code
Using M.U.T.-III, check that diagnosis code
No.U0141 is not set by the combination meter sys-
tem.
Q: Is the diagnosis code set?
YES :
Diagnose the combination meter (Refer to
GROUP 54A
− Combination
Meter/Diagnosis Code ). Then go to Step 7.
NO :
Go to Step 5.
STEP 5. M.U.T.-III other system diagnosis code
Using M.U.T.-III, check that diagnosis code
No.U0121 is not set by the ETACS system.
Q: Is the diagnosis code set?
YES :
Perform troubleshooting on ETACS-ECU
(Refer to GROUP 54A
− ETACS/Diagnosis
Code ). Then go to Step 7.
NO :
Go to Step 6.
STEP 6. Retest the system.
Q: Does the brake warning lamp turn ON and OFF
YES :
Intermittent malfunction (Refer to GROUP
00
− How to Use Troubleshooting/How to
Cope with Intermittent Malfunctions ).
NO :
Replace the hydraulic unit (ASC-ECU)
(Refer to
STEP 7. Retest the system.
Q: Does the brake warning lamp turn ON and OFF
normally?
YES :
This diagnosis is complete.
NO :
Return to Step 1.
Inspection Procedure 6: ABS warning lamp stays ON after the engine is started.
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
(Refer to GROUP 54C
− CAN Bus Diagnostics
Table ).
• Whenever ECU is replaced, ensure that the
CAN bus lines are normal.
• When the hydraulic unit (integrated with
ASC-ECU) is replaced, always carry out the
calibration of the steering wheel sensor, the G
and yaw rate sensor and brake fluid pressure
sensor (Refer to
and
OPERATION
• ASC-ECU sends the illumination request signal
of the ABS warning lamp to the combination
meter through ETACS-ECU via CAN communica-
tion.
• ASC-ECU illuminates the ABS warning lamp via
ETACS-ECU for approximately 3 seconds for
valve check with the ignition switch turned to the
ON position.
COMMENTS ON TROUBLE SYMPTOM
This may be caused by faults in the CAN bus line,
ETACS-ECU, combination meter or ASC-ECU.
PROBABLE CAUSES
• Damaged wiring harness and connectors
• Malfunction of ETACS-ECU
• Combination meter malfunction
• ASC-ECU malfunction
• Control stop due to the low voltage
NOTE: Due to the abnormality in the supply voltage,
the diagnosis code may not be set even when the
ABS warning lamp is illuminated.
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-III CAN bus diagnosis
Use 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 lines (Refer to GROUP
54C
− CAN Bus Diagnostics Table ). Then
go to Step 7.
STEP 2. M.U.T.-III diagnosis code
Use M.U.T.-III to check the diagnosis code for the
ASC system.
Q: Is the diagnosis code set?
YES :
Carry out the diagnosis for the diagnosis
code (Refer to
).
NO :
Go to Step 3.