Mitsubishi Outlander XL. Manual — part 801
STEP 1. Using scan tool MB991958, read CAN bus the
diagnostic trouble code.
ZC501967
AC404789
ZC5019680000
MB991824
MB991827
MB991910
Data link
connector
To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before
connecting or disconnecting scan tool MB991958.
(1)
Connect scan tool MB991958. Refer to "How to connect scan
tool (M.U.T.-III) P.42B-10."
(2)
Turn the ignition switch to the "ON" position.
(3)
Check whether the CAN bus lines related DTC is set.
(4)
Turn the ignition switch to the "LOCK" (OFF) position.
Q:Is the DTC set?
YES:
Repair the CAN bus line (Refer to GROUP 54D, CAN bus
NO:
Go to Step 2.
STEP 2. Using scan tool MB991958, read the diagnostic
trouble code.
ZC501967
AC404789
ZC5019680000
MB991824
MB991827
MB991910
Data link
connector
To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before
connecting or disconnecting scan tool MB991958.
(1)
Connect scan tool MB991958. Refer to "How to connect scan
tool (M.U.T.-III) P.42B-10."
(2)
Turn the ignition switch to the "ON" position.
(3)
Check whether the KOS-ECU related DTC is set.
(4)
Turn the ignition switch to the "LOCK" (OFF) position.
Q:Is the DTC set?
YES:
Diagnose the KOS-ECU. Refer to P.42B-18.
NO:
Go to Step 3.
STEP 3. Key reminder switch check
(1)
Disconnect the C-315 ETACS-ECU connector.
(2)
Measure the resistance at the harness-side connector with
the ignition key removed from the ignition key cylinder.
KEYLESS OPERATION SYSTEM (KOS)
42B-147
DIAGNOSIS
ZC5007880051
Connector C-315
(harness side)
(3)
Check for continuity between the C-315 ETACS-ECU
connector terminal No. 13 and the ground.
OK: Continuity exists (2 Ω or less)
Q:Is the check result normal?
YES:
Go to Step 4.
NO:
Check the C-211 key reminder switch connector, the
C-315 ETACS-ECU connector, the wiring harness between the
C-211 key reminder switch connector (terminal No. 3) and
the C-315 ETACS-ECU connector (terminal No. 13), and
between the C-211 key reminder switch connector (terminal
No. 2) and the ground. If they are normal, replace the key
reminder switch.
STEP 4. Using scan tool MB991958, check data list.
Check the signals related to the keyless entry system operation.
ZC501967
AC404789
ZC5019680000
MB991824
MB991827
MB991910
Data link
connector
To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before
connecting or disconnecting scan tool MB991958.
(1)
Connect scan tool MB991958. Refer to "How to connect the
Scan Tool (M.U.T.-III) P.42B-10."
(2)
Turn the ignition switch to the "ON" position.
(3)
Check the ETACS data list.
⦆
Turn the ignition switch to the LOCK (OFF) position.
⦆
Close the driver's door.
⦆
Close the passenger's door.
⦆
Close the RH-side rear door.
⦆
Close the LH-side rear door.
⦆
Close the liftgate.
⦆
Remove the ignition key from the ignition key cylinder.
Item No.
Item name
Normal
condition
Item 254
IG voltage
Battery
voltage
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
Item 264
Handle lock switch
Key in → Key
out
(4)
Turn the ignition switch to the "LOCK" (OFF) position.
OK: Normal condition is displayed.
Q:Is the check result normal?
YES (Normal conditions are displayed for all the items.):
Go to Step 5.
42B-148
KEYLESS OPERATION SYSTEM (KOS)
DIAGNOSIS
NO (Normal condition is not displayed for item No.
254.):
Refer to GROUP 54Ad, Inspection Procedure 2: ETACS-
ECU does not receive any signal from the ignition switch
(IG1) P.54Ad-62.
NO (Normal condition is not displayed for item No.
256.):
Refer to GROUP 54Ad, Inspection Procedure 5: ETACS-
ECU does not receive any signal from the front door switch
(LH) P.54Ad-73.
NO (Normal condition is not displayed for item No.
257.):
Refer to GROUP 54Ad, Inspection Procedure 6: ETACS-
ECU does not receive any signal from the front door switch
(RH) P.54Ad-75.
NO (Normal condition is not displayed for item No.
258.):
Refer to GROUP 54Ad, Inspection Procedure 8: ETACS-
ECU does not receive any signal from the rear door switch
(RH) P.54Ad-80.
NO (Normal condition is not displayed for item No.
259.):
Refer to GROUP 54Ad, Inspection Procedure 7: ETACS-
ECU does not receive any signal from the rear door switch
(LH) P.54Ad-77.
NO (Normal condition is not displayed for item No.
260.):
Refer to GROUP 54Ad, Inspection Procedure 9: ETACS-
ECU does not receive any signal from the liftgate
switch P.54Ad-82.
NO (Normal condition is not displayed for item No.
264.):
Refer to GROUP 54Ad, Inspection Procedure 3: ETACS-
ECU does not receive any signal from the key reminder
switch. P.54Ad-64.
STEP 5. Check KOS-ECU connector C-102 and receiver
antenna module connector C-30 for loose, corroded or
damaged terminals, or terminals pushed back in the
connector.
Q:Are KOS-ECU connector C-102 and receiver antenna
module connector C-30 in good condition?
YES:
Go to Step 6.
NO:
Repair or replace the damaged component(s). Refer to
GROUP 00E, Harness Connector Inspection P.00E-2. Check
that the driver’s door unlock sensor works normally.
STEP 6. Check the wiring harness between KOS-ECU
connector C-102 (terminal Nos. 7, 9, 10 and 32) and receiver
antenna module connector C-30 (terminal Nos. 12, 3, 4 and
8).
Q:Is the wiring harness between KOS-ECU connector C-102
(terminal Nos. 7, 9, 10 and 32) and receiver antenna
module connector C-30 (terminal Nos. 12, 3, 4 and 8) in
good condition?
YES:
Go to Step 7.
NO:
The wiring harness may be damaged or the connector
(s) may have loose, corroded or damaged terminals, or
terminals pushed back in the connector. Repair the wiring
KEYLESS OPERATION SYSTEM (KOS)
42B-149
DIAGNOSIS
harness as necessary. Check that the driver’s door
unlock sensor works normally.
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 P.42B-163).
NO:
Go to Step 8.
STEP 8. Check of the troubles
Replace ETACS-ECU. After the replacement, perform the
coding, and check that the keyless entry system 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 P.
00-15).
NO:
Replace KOS-ECU and register the ID codes (Refer
INSPECTION PROCEDURE 14: KOS Timer Lock Function does not Work.
M14209100086USA0000010000
Before replacing the ECU, ensure that the power
supply circuit, the ground circuit and the
communication circuit are normal.
OPERATION
After the door is unlocked with the keyless entry
function, if no operation is performed, the door is
locked when the time specified by a customization
function has elapsed. However, an open signal from
any door, key reminder switch OFF (with the key
inserted) signal, or ignition push switch ON signal has
been input to ETACS, the KOS timer will not operate.
PROBABLE CAUSES
⦆
Malfunction of ETACS-ECU
⦆
Malfunction of the door switches
DIAGNOSTIC PROCEDURE
Required Special Tools:
⦆
MB991223: Harness Set
⦆
MB992006: Extra Fine Probe
⦆
MB991958: Scan Tool (M.U.T.-III Sub Assembly)
⦆
MB991824: V.C.I.
⦆
MB991827: M.U.T.-III USB Cable
⦆
MB991910: M.U.T.-III Main Harness A
42B-150
KEYLESS OPERATION SYSTEM (KOS)
DIAGNOSIS
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