Mitsubishi Outlander XL. Manual - part 770

(4)

Turn the ignition switch to the "LOCK" (OFF) position.

Q:Is the DTC set?

YES:

 Replace the engine control module and record the

VIN. (Refer to GROUP 00 - How To Perform Vehicle
Identification Number (VIN) Writing P.00-26.)

NO:

 The procedure is complete.

DTC B1761: VIN not programmed

M14209100005USA0000010000

｠

When  the  DTC  No.  B1761  is  set,  be  sure  to
diagnose the CAN bus line.

｠

When replacing the ECU, always check that the
communication circuit is normal.

DTC SET CONDITION
KOS-ECU sets DTC B1761 when no VIN is recorded
in it.

TECHNICAL DESCRIPTION (COMMENT)
KOS-ECU determines that the abnormality is present
when no VIN is recorded in it.

TROUBLESHOOTING HINTS

｠

VIN not programmed

｠

Malfunction of the KOS-ECU

DIAGNOSIS

Required Special Tools:

｠

MB991958: Scan Tool (M.U.T.-III Sub Assembly)

｠

MB991824: Vehicles Communication Interface (V.C.I.)

｠

MB991827: M.U.T.-III USB Cable

｠

MB991910:  M.U.T.-III  Main  Harness  A  (Vehicles  with
CAN communication system)

STEP 1. Using scan tool MB991958, diagnose the CAN bus
line.

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 to the data link connector.

(2)

Turn the ignition switch to the "ON" position.

(3)

Diagnose the CAN bus line.

(4)

Turn the ignition switch to the "LOCK" (OFF) position.

Q:Is the CAN bus line found to be normal?

YES:

 Go to Step 2.

NO:

 Repair the CAN bus line. (Refer to GROUP 54D,

Diagnosis P.54D-17).

KEYLESS OPERATION SYSTEM (KOS)

42B-23

DIAGNOSIS

STEP 2. Register the VIN and recheck the diagnostic trouble
code.
Register VIN in KOS-ECU (Refer to GROUP 00 - How to Perform
Vehicle  Identification  Number  (VIN)  Writing  P.00-26)  and
recheck if the DTC is set.

(1)

Turn the ignition switch from the "LOCK" (OFF) position to
the "ON" position.

(2)

Check if DTC is set.

(3)

Turn the ignition switch to the "LOCK" (OFF) position.

Q:Is the DTC set?

YES:

 Replace KOS-ECU and register the ID codes. (Refer

to P.42B-12.)

NO:

 The procedure is complete.

DTC B1A08 Keyless/KOS key1 performance
DTC B1A09 Keyless/KOS key2 performance
DTC B1A0A Keyless/KOS key3 performance
DTC B1A0B Keyless/KOS key4 performance

M14209100123USA0000010000

When  replacing  the  ECU,  always  check  that  the
communication circuit is normal.

DTC SET CONDITION
The mechanism which automatically changes a code
for  lock/unlock  each  time  a  lock  operation  is
performed is referred to as a rolling code. If KOS-ECU
receives  wrong  signal  (out  of  synchronisation  of  a
rolling  code)  from  the  keyless  operation  key,  KOS-
ECU memorises the DTC B1A08.

TECHNICAL DESCRIPTION (COMMENT)

｠

B1A08: If the difference between the rolling code for
the  keyless  operation  key  1  (the  first  keyless
operation key registered with KOS-ECU) and that
memorised  by  KOS-ECU  is  large,  it  is  judged  as
abnormal.

｠

B1A09: If the difference between the rolling code for
the  keyless  operation  key  2  (the  second  keyless
operation key registered with KOS-ECU) and that
memorised  by  KOS-ECU  is  large,  it  is  judged  as
abnormal.

｠

B1A0A: If the difference between the rolling code
for  the  keyless  operation  key  3  (the  third  keyless
operation key registered with KOS-ECU) and that
memorised  by  KOS-ECU  is  large,  it  is  judged  as
abnormal.

｠

B1A0B: If the difference between the rolling code
for the keyless operation key 4 (the fourth keyless
operation key registered with KOS-ECU) and that
memorised  by  KOS-ECU  is  large,  it  is  judged  as
abnormal.

TROUBLESHOOTING HINTS

｠

Rolling code out of synchronisation

｠

Malfunction of the keyless operation key

｠

Malfunction of the KOS-ECU

DIAGNOSIS

STEP 1. Synchronise the rolling code and recheck
the diagnostic trouble code.
Synchronise the rolling codes, and check whether the
DTC is reset.

(1)

Erase the DTC.

(2)

Turn  the  ignition  switch  from  the  LOCK  (OFF)
position to the ON position.

(3)

Press  the  lock  or  unlock  switch  of  the  keyless
operation key for which the DTC is set at least once
to synchronise the rolling codes.

(4)

Check if the DTC is set.

Q:Is the DTC set?

YES:

 Go to Step 2.

NO:

 The procedure is complete.

42B-24

KEYLESS OPERATION SYSTEM (KOS)

DIAGNOSIS

STEP 2. Check whether the diagnostic trouble
code is reset.
Replace the keyless operation key for which the DTC
is set with a new one, register the encrypted code and
keyless  operation  key  ID  (refer  to  P.42B-12),  and
check whether the DTC is reset.

(1)

Erase the DTC.

(2)

Turn  the  ignition  switch  from  the  LOCK  (OFF)
position to the ON position.

(3)

Check if the DTC is set.

Q:Is the DTC set?

YES:

 Replace KOS-ECU and register the ID codes.

(Refer to P.42B-12.)

NO:

 The procedure is complete.

DTC B1A10 Keyless/KOS key 1 low battery
DTC B1A11 Keyless/KOS key 2 low battery
DTC B1A12 Keyless/KOS key 3 low battery
DTC B1A13 Keyless/KOS key 4 low battery

M14209100124USA0000010000

When  replacing  the  ECU,  always  check  that  the
communication circuit is normal.

DTC SET CONDITION
If KOS-ECU receives the keyless operation key low
battery  voltage  signal,  KOS-ECU  sets  the  DTC
B1A10, B1A11, B1A12, or B1A13.

TECHNICAL DESCRIPTION (COMMENT)

｠

B1A10: If KOS-ECU receives the keyless operation
key 1 (the first keyless operation key registered with
KOS-ECU)  low  battery  voltage  signal  in  five
consecutive times, it is judged as abnormal.

｠

B1A11: If KOS-ECU receives the keyless operation
key 2 (the second keyless operation key registered
with  KOS-ECU)  low  battery  voltage  signal  in  five
consecutive times, it is judged as abnormal.

｠

B1A12: If KOS-ECU receives the keyless operation
key  3  (the  third  keyless  operation  key  registered
with  KOS-ECU)  low  battery  voltage  signal  in  five
consecutive times, it is judged as abnormal.

｠

B1A13: If KOS-ECU receives the keyless operation
key 4 (the fourth keyless operation key registered
with  KOS-ECU)  low  battery  voltage  signal  in  five
consecutive times, it is judged as abnormal.

TROUBLESHOOTING HINTS

｠

Malfunction of the keyless operation key battery

｠

Malfunction of the keyless operation key

｠

Malfunction of KOS-ECU

DIAGNOSIS

STEP 1. Replace the battery in the keyless
operation key and recheck the diagnostic trouble
code.
Replace the battery of the keyless operation key for
which the DTC is set, and check whether the DTC is
reset.

(1)

Replace the battery of the keyless operation key
for which the DTC is set.

(2)

Erase the DTC.

(3)

Turn  the  ignition  switch  from  the  LOCK  (OFF)
position to the ON position.

(4)

Lock or unlock the keyless operation key.

(5)

Check if the DTC is set.

Q:Is the DTC set?

YES:

 Go to Step 2.

NO:

 The procedure is complete. (Discharged

battery)

STEP 2. Replace the keyless operation key and
recheck the diagnostic trouble code.
Replace the keyless operation key for which the DTC
is set with a new one, register the encrypted code and
keyless  operation  key  ID  (refer  to  P.42B-12),  and
check whether the DTC is reset.

(1)

Erase the DTC.

(2)

Turn  the  ignition  switch  from  the  LOCK  (OFF)
position to the ON position.

(3)

Check if the DTC is set.

Q:Is the DTC set?

YES:

 Replace KOS-ECU and register the ID codes.

(Refer to P.42B-12.)

KEYLESS OPERATION SYSTEM (KOS)

42B-25

DIAGNOSIS

NO:

 The procedure is complete.

DTC B1A24: Key ID not registered

M14209100089USA0000010000

DTC SET CONDITION
KOS-ECU sets the DTC B1A24 when the key ID was
not registered in it.

TECHNICAL DESCRIPTION (COMMENT)
KOS-ECU determines that the abnormality is present,
if the key ID is not registered in it when the ignition
switch is turned ON.

ROUBLESHOOTING HINTS

｠

Key ID not registered

｠

Malfunction of KOS-ECU

DIAGNOSIS

Required Special Tools:

｠

MB991958: Scan Tool (M.U.T.-III Sub Assembly)

｠

MB991824: Vehicles Communication Interface (V.C.I.)

｠

MB991827: M.U.T.-III USB Cable

｠

MB991910:  M.U.T.-III  Main  Harness  A  (Vehicles  with
CAN communication system)

STEP 1. Using scan tool MB991958, diagnose the CAN bus
line.

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 to the data link connector.

(2)

Turn the ignition switch to the "ON" position.

(3)

Diagnose the CAN bus line.

(4)

Turn the ignition switch to the "LOCK" (OFF) position.

Q:Is the CAN bus line found to be normal?

YES:

 Go to Step 2.

NO:

 Repair the CAN bus line. (Refer to GROUP 54D,

Diagnosis P.54D-17).

STEP 2. Register the key ID and recheck the diagnostic
trouble code.
Register the key ID of the emergency key by which the DTC is
set (refer to P.42B-163), and recheck if the DTC is set.

42B-26

KEYLESS OPERATION SYSTEM (KOS)

DIAGNOSIS