Mitsubishi Outlander (2013+). Manual — part 545
TROUBLESHOOTING <KOS-ECU>
KEYLESS OPERATION SYSTEM (KOS)
42B-41
STEP 4. KOS communication test
Using M.U.T-III, perform the antenna communication
test to check that the outside transmission antenna
assembly (tailgate) communicates normally (Refer to
).
Q: Is the check result normal?
YES :
Go to Step 5.
NO :
Perform troubleshooting for the diagnosis
code No. B240C (Refer to
).
STEP 5. Check of the troubles
Operate the tailgate lock release handle (lock switch)
to check that the tailgate can be locked.
Q: Is the check result normal?
YES :
Intermittent malfunction is suspected (Refer
to GROUP 00
− How to Use
Troubleshooting/Inspection Service Points
−
How to Deal with Intermittent Malfunction ).
NO :
Replace KOS-ECU and register the ID
codes (Refer to
Inspection Procedure 10: The open switch of the tailgate lock release handle does not perform the
unlocking operation..
CAUTION
Before replacing the ECU, ensure that the power
supply circuit, the earth circuit and the communi-
cation circuit are normal.
PROBABLE CAUSES
• Malfunction of the outside transmission antenna
assembly (tailgate)
• Malfunction of the tailgate lock release handle
(open switch)
• Damaged wiring harness and connectors
• Malfunction of the KOS-ECU
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-III diagnosis code
Check if any diagnosis code is set to the KOS-ECU.
Q: Is the diagnosis code set?
YES :
Refer to diagnosis code chart
NO :
Go to Step 2.
STEP 2. Tailgate lock release handle (open
switch) check
Check that the tailgate lock release handle (open
switch) is normal (Refer to GROUP 42A
− Tailgate
Handle and Latch <Vehicles without electric tail-
gate> or <Vehicles with electric tailgate>).
Q: Is the check result normal?
YES :
Go to Step 3.
NO :
Replace the tailgate lock release handle.
STEP 3. Check of short to power supply, short to
earth, and open circuit in GTOP line between the
KOS-ECU connector and the tailgate lock release
handle connector.
NOTE: Before the wiring harness check, check the
intermediate connector, and repair if necessary.
Q: Is the check result normal?
YES :
Go to Step 4.
NO :
Repair the wiring harness.
STEP 4. KOS communication test
Using M.U.T-III, perform the antenna communication
test to check that the outside transmission antenna
assembly (tailgate) communicates normally (Refer to
Q: Is the check result normal?
YES :
Go to Step 5.
NO :
Perform troubleshooting for the diagnosis
code No. B240C (Refer to
STEP 5. Check of the troubles
Operate the tailgate lock release handle (open
switch) to check that the tailgate can be opened.
Q: Is the check result normal?
YES :
Intermittent malfunction is suspected (Refer
to GROUP 00
− How to Use
Troubleshooting/Inspection Service Points
−
How to Deal with Intermittent Malfunction ).
NO :
Replace KOS-ECU and register the ID
codes (Refer to
TROUBLESHOOTING <KOS-ECU>
KEYLESS OPERATION SYSTEM (KOS)
42B-42
Inspection Procedure 11: Keyless entry function does not work.
CAUTION
Before replacing the ECU, ensure that the power
supply circuit, the earth circuit and the communi-
cation circuit are normal.
OPERATION
The lock/unlock signal of the keyless operation key is
sent to ETACS-ECU via KOS-ECU. Also, when
ETACS receives signals from the all the door
switches, ETACS-ECU judges them to activate the
keyless entry function.
PROBABLE CAUSES
• Malfunction of CAN bus line
• Malfunction of the door switches
• Malfunction of the keyless operation key
• Damaged wiring harness and connectors
• Malfunction of the KOS-ECU
• Malfunction of ETACS-ECU
DIAGNOSIS PROCEDURE
STEP 1. ETACS-ECU coding data check
(1) Use M.U.T.-III to read out the option coding
information in ETACS-ECU (Refer to GROUP 00
− Precautions before Service - Coding Reference
Table ).
(2) Check if the "Keyless function" is "Enabled."
Q: Is the check result normal?
YES :
Go to Step 2
NO :
Operate the M.U.T.-III to set the option
coding "keyless" to "enabled," and check
the trouble symptom.
STEP 2. M.U.T.-III CAN bus diagnostics
Use M.U.T.-III to diagnose the CAN bus lines.
Q: Is the CAN bus normal?
YES :
Go to Step 3
NO :
Repair the CAN bus line. (Refer to GROUP
54C
− Troubleshooting .)
STEP 3. M.U.T.-III diagnosis code
Check if any diagnosis code is set to the KOS-ECU.
Q: Is the diagnosis code set?
YES :
Refer to diagnosis code chart .
NO :
Go to Step 4
STEP 4. Check the power supply system
With the ignition switch in the LOCK (OFF) position,
check if the following function operates normally:
• Hazard warning lamp
Q: Is the check result normal?
YES :
Go to Step 5
NO :
Refer to GROUP 54A
− Abnormality in
ETACS-ECU Power Supply Circuit .
STEP 5. Check the operation of the central door
locking system.
Check that the central door locking system works
normally.
Q: Is the check result normal?
YES :
Go to Step 6
NO :
Refer to GROUP 42A
− Troubleshooting .
STEP 6. M.U.T.-III data list
Check the ETACS-ECU service data relevant to the
operation of keyless entry function.
• Turn the power supply mode of engine switch to
OFF.
• Close the driver's door.
• Close the front passenger's doors.
• Close the RH-side rear door.
• Close the LH-side rear door.
•
Item No.
Item name
Normal
condition
Item 256
Dr door ajar switch
Close
Item 257
As door ajar switch
Close
Item 258
RR door ajar switch
Close
Item 259
RL door ajar switch
Close
Item 260
Trunk/gate trunk ajar
switch
Close
Close the tailgate.
OK: Normal conditions are displayed for all
the items.
Q: Are the check result normal?
TROUBLESHOOTING <KOS-ECU>
KEYLESS OPERATION SYSTEM (KOS)
42B-43
Normal conditions are displayed for all the items. :
Go to Step 7.
Normal condition is not displayed for item No. 256.
:
Refer to GROUP 54A
− Inspection
Procedure 5: "Front door switch (driver’s
side) signal is not received ."
Normal condition is not displayed for item No. 257.
:
Refer to GROUP 54A
− Inspection
Procedure 6: "Front door switch
(passenger’s side) signal is not received ."
Normal condition is not displayed for item No. 258.
:
Refer to GROUP 54A
− Inspection
Procedure 7: "Rear door switch (RH) signal
is not received ."
Normal condition is not displayed for item No. 259.
:
Refer to GROUP 54A
− Inspection
Procedure 8: Rear door switch (LH) signal is
not received .
Normal condition is not displayed for item No. 260.
:
Refer to GROUP 54A
− Inspection
Procedure 9: "Tailgate latch signal is not
received ."
STEP 7. Check with another registered keyless
operation key.
Check that the keyless entry function can be used
with another keyless operation key.
Q: Can the keyless entry function be used?
YES :
Replace the keyless operation key
concerned and register the ID codes (Refer
to
NO :
Go to Step 8
STEP 8. Check of the troubles
Replace ETACS-ECU. After the replacement, per-
form the coding, and check that the keyless entry
function operates normally.
Q: Is the check result normal?
YES :
Intermittent malfunction is suspected (Refer
to GROUP 00
− How to Use
Troubleshooting/Inspection Service Points
−
How to Cope with Intermittent Malfunction ).
NO :
Replace KOS-ECU and register the ID
codes (Refer to
Inspection Procedure 12: KOS timer lock function does not work.
CAUTION
Before replacing the ECU, ensure that the power
supply circuit, the earth circuit and the communi-
cation circuit are normal.
OPERATION
After the door is unlocked using the keyless entry
function or the door entry function, if no operation is
performed, the door is locked when the time speci-
fied by a customisation function has elapsed. How-
ever, when an open signal of any of the doors is
received by ETACS-ECU or when the engine switch
power supply mode is ON, the KOS timer lock func-
tion will not be activated.
PROBABLE CAUSES
• Malfunction of ETACS-ECU
• Malfunction of the door switches
DIAGNOSIS PROCEDURE
STEP 1. Check the keyless entry function
operation
Check that the keyless entry function operation nor-
mally.
Q: Is the check result normal?
YES :
Go to Step 2
NO :
Refer to Inspection Procedure 11: "Keyless
entry function does not work
STEP 2. M.U.T.-III diagnosis code
Check if any diagnosis code is set to the KOS-ECU.
Q: Is the diagnosis code set?
YES :
Refer to diagnosis code chart
NO :
Go to Step 3.
STEP 3. Check of the troubles
Check that the KOS timer lock function operates.
Q: Is the check result normal?
YES :
Intermittent malfunction is suspected (Refer
to GROUP 00
− How to Use
Troubleshooting/Inspection Service Points ).
NO :
Perform troubleshooting for each door
switch (Refer to GROUP 54A
− ETACS −
Troubleshooting ).
TROUBLESHOOTING <KOS-ECU>
KEYLESS OPERATION SYSTEM (KOS)
42B-44
Inspection Procedure 13: Keyless entry hazard answerback function or the room lamp answerback
function does not work normally.
CAUTION
Before replacing the ECU, ensure that the power
supply circuit, the earth circuit and the communi-
cation circuit are normal.
OPERATION
When the keyless entry function is used, the keyless
entry hazard answerback function or room lamp
answerback function operate as set by ETACS cus-
tomisation function (If the flashing count is set to 0
with a customisation function, no answerback func-
tion is performed).
PROBABLE CAUSES
• Function setting error or no setting with a custom-
isation
• Malfunction of the turn signal lamp
• Malfunction of the room lamp
• Malfunction of ETACS-ECU
DIAGNOSIS PROCEDURE
STEP 1. Check the hazard warning lamp
Check that the hazard warning lamp illuminate nor-
mally.
Q: Is the check result normal?
YES :
Go to Step 2.
NO :
Refer to GROUP 54A
− Inspection
Procedure 1: "The hazard warning lamps do
not illuminate ."
STEP 2. Check the room lamps operation
Check that the room lamps illuminate normally.
Q: Is the check result normal?
YES :
Go to Step 3.
NO :
Refer to GROUP 54A, The front room lamp
does not illuminate normally .
STEP 3. Check the keyless entry system
operation
Check that the keyless entry system operation nor-
mally.
Q: Is the check result normal?
YES :
Go to Step 4.
NO :
Refer to Inspection Procedure 9: "Keyless
entry system does not work
."
STEP 4. Check the customisation
Check that any one of the followings other than
"Lock: 0, Unlock: 0" is set for "Hazard answerback"
with a customisation function.
• Lock:1, Unlock:2
• Lock:1, Unlock:0
• Lock:0, Unlock:2
• Lock:2, Unlock:1
• Lock:0, Unlock:1
• Lock:2, Unlock:0
NOTE: If "Lock: 0" or "Unlock: 0" is selected, no
answerback function is performed on locking or
unlocking.
Q: Is it set to other than "Lock: 0, Unlock: 0"?
YES :
Go to Step 5.
NO :
Set "Hazard answerback" to any one other
than "Lock: 0, Unlock: 0" with a
customisation function (Refer to
STEP 5. M.U.T.-III diagnosis code
Check if any diagnosis code is set to the KOS-ECU.
Q: Is the diagnosis code set?
YES :
NO :
Go to Step 6.
STEP 6. Check of the troubles
Check that the hazard answerback and room lamp
answerback functions of the keyless entry operate.
Q: Is the check result normal?
YES :
Intermittent malfunction is suspected (Refer
to GROUP 00
− How to Use
Troubleshooting/Inspection Service Points
−
How to Cope with Intermittent Malfunction .)
NO :
Replace ETACS-ECU. After the
replacement, perform the coding.
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