Mitsubishi Outlander XL. Manual — part 815

DIAGNOSIS

Required Special Tools:

｠

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

｠

MB991824: Vehicle 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 encrypted code and recheck the
diagnostic trouble code.
Register the encrypted code of the ignition key (refer to P.
42C-85), and recheck if the DTC is set.

(1)

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

(2)

Check if the DTC is set.

Q:Is the DTC set?

YES:

Go to Step 3.

NO:

The procedure is complete.

STEP 3. Replace the ignition key and recheck the diagnostic
trouble code.
Replace the ignition key with a new one, register the encrypted
code of the new key, (refer to P.42C-85), and recheck if the
DTC is set.

(1)

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

(2)

Check if the DTC is set.

WIRELESS CONTROL MODULE (WCM)

42C-19

DIAGNOSIS

Q:Is the DTC set?

YES:

Replace WCM and register the ID codes. (Refer to P.

42C-8.)

NO:

The procedure is complete.

DTC B1A25: Transponder ID unmatched

M14209200015USA0000010000

DTC SET CONDITION
WCM sets the DTC B1A25 when the received
transponder ID is different from the one registered in
it.

TECHNICAL DESCRIPTION (COMMENT)
WCM determines that the abnormality is present, if the
encrypted code for the ignition key does not match the
one registered in WCM when the ignition switch is
turned ON.

TROUBLESHOOTING HINTS

｠

Malfunction of the ignition key

｠

Malfunction of WCM

｠

Key not registered

｠

WCM not registered

｠

Key is registered to another vehicle

DIAGNOSIS

Required Special Tools:

｠

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

｠

MB991824: Vehicle 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)

42C-20

WIRELESS CONTROL MODULE (WCM)

DIAGNOSIS

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 encrypted code and recheck the
diagnostic trouble code.
Register the encrypted code of the ignition key (refer to P.
42C-85), and recheck if the DTC is set.

(1)

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

(2)

Check if the DTC is set.

Q:Is the DTC set?

YES:

Go to Step 3.

NO:

The procedure is complete.

STEP 3. Replace the ignition key and recheck the diagnostic
trouble code.
Replace the ignition key with a new one, register the encrypted
code of the new key, (refer to P.42C-8), and recheck if the DTC
is set.

(1)

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

(2)

Check if the DTC is set.

Q:Is the DTC set?

YES:

Replace WCM and register the ID codes. (Refer to P.

42C-8.)

NO:

The procedure is complete.

WIRELESS CONTROL MODULE (WCM)

42C-21

DIAGNOSIS

DTC B1A28: Engine control module authenticate error

M14209200016USA0000010000

｠

When the DTC B1A28 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
WCM sets DTC B1A28 when the ignition key
certification result and the engine control module
starting condition do not match.

TECHNICAL DESCRIPTION (COMMENT)
WCM determines that the abnormality is present, if the
key certification result and the engine control module

starting condition do not match after the engine start
permission communication is completed.

TROUBLESHOOTING HINTS

｠

Malfunction of WCM

｠

Engine control module malfunction

｠

VIN registered in engine control module unmatched

DIAGNOSIS

Required Special Tools:

｠

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

｠

MB991824: Vehicle 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).

42C-22

WIRELESS CONTROL MODULE (WCM)

DIAGNOSIS