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

diagnostics table P.54D-17).

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

to P.42B-163).

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