Mitsubishi Outlander GS45X. Manual — part 1119

DIAGNOSIS

TSB Revision

KEYLESS OPERATION SYSTEM (KOS)

42B-55

STEP 2. Using scan tool MB991958, read the ETACS-ECU
diagnostic trouble code
Check if a coding-related DTC is set in the ETACS-ECU.
Q: Is the DTC set?

YES : Troubleshoot the ETACS. (Refer to GROUP 54A,

Diagnosis

P.54A-733

.)

NO : Go to Step 3.

STEP 3. Recheck for diagnostic trouble code.
Check again if the DTC is set to the WCM.
(1) Erase the DTC.
(2) Turn the ignition switch from "LOCK" (OFF) position to "ON"

position.

(3) Check if DTC is set.
(4) 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-15

.)

NO : The trouble can be an intermittent malfunction (Refer

to GROUP 00

− How to use

Troubleshooting/inspection Service Points

− How to

Cope with Intermittent Malfunction

P.00-15

).

DTC B2206: VIN code mismatch

.

DTC SET CONDITION

KOS-ECU sets DTC B2206 when chassis number
registered in it and VIN that has been transmitted on
the CAN bus do not match.

.

TECHNICAL DESCRIPTION (COMMENT)

KOS-ECU determines that the abnormality is present
when VIN registered in it and the one that has been
transmitted on the CAN bus do not match.

.

TROUBLESHOOTING HINTS

• Malfunction of KOS-ECU (KOS-ECU being regis-

tered to another vehicle)

• Malfunction of ECM (VIN registered in ECM

unmatched)

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)

DIAGNOSIS

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KEYLESS OPERATION SYSTEM (KOS)

42B-56

STEP 1. Check the VIN registered in the engine control
module and the VIN of the vehicle.
Check if the VIN registered in the engine control module
matches with the VIN of the vehicle.
(1) On the system selection screen of the scan tool, select

"MFI/GDI/Diesel".

(2) Select "Coding."
(3) Select "VIN Information."
(4) Compare with the VIN of the vehicle.
Q: Does the VIN of the engine control module match with

the VIN of the vehicle?
YES : Go to Step 2.
NO : Write the VIN to the engine control module. [Refer to

GROUP 00

− How to Perform Vehicle Identification

Number (VIN) Writing

P.00-40

]. Record VIN and go to

Step 2.

STEP 2. Recheck for diagnostic trouble code.
Check again if the DTC is set to the KOS-ECU.

CAUTION

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) Check if the DTC is set.
Q: Is the DTC set?

YES : Replace KOS-ECU and register the ID codes (Refer

to

P.42B-15

). After registering the ID codes, go to

Step 3.

NO : The procedure is complete.

STEP 3. Recheck for diagnostic trouble code.
Check again if the DTC is set to the KOS-ECU.
(1) Turn the ignition switch to the "ON" position.
(2) Check if the DTC is set.
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.00-40

].

NO : The procedure is complete.

ZC501967

AC404789

AC701411AB

MB991824

MB991827

MB991910

Data link
connector

DIAGNOSIS

TSB Revision

KEYLESS OPERATION SYSTEM (KOS)

42B-57

DTC B2352: Antenna fail

CAUTION

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

.

DTC SET CONDITION

If an open circuit or short to ground occurs in the
antenna, KOS-ECU sets the DTC B2352.

.

TECHNICAL DESCRIPTION (COMMENT)

When the ignition switch is turned ON with the emer-
gency operation by the inversely-inserted keyless
operation key, KOS-ECU sends signals to the
receiver antenna module. The receiver antenna
transmits random numbers to the keyless operation
key when it receives signals from KOS-ECU. If an
open circuit or short to ground occurs on the wiring
harness between KOS-ECU and receiver antenna at
this time, KOS-ECU determines that there is a prob-
lem.

.

TROUBLESHOOTING HINTS

• Malfunction of the receiver antenna module

• Damaged wiring harness and connectors

• 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)

ACA02751

Receiver Antenna Module and KOS-ECU Circuit

KEYLESS
OPERATION
KEY

RECEIVER ANTENNA
MODULE

KOS-ECU

TRANSPONDER

KEY ID

IMMOBILIZER
ANTENNA

KEYLESS
ENTRY
RECEIVER

AB

AC702145AB

Connector: C-30, C-102

C-30

C-102

DIAGNOSIS

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KEYLESS OPERATION SYSTEM (KOS)

42B-58

STEP 1. Check receiver antenna module connector C-30
and KOS-ECU connector C-102 for loose, corroded or
damaged terminals, or terminals pushed back in the
connector.
Q: Is the receiver antenna module connector C-30 and

KOS-ECU connector C-102 in good condition?
YES : Go to Step 2.
NO : Repair the defective connector.

STEP 2. Check the wiring harness between the receiver
antenna module connector C-30 (terminal No. 1, 2) and the
KOS-ECU connector C-102 (terminal No. 12, 11).

• Check the signal lines for open circuit and short circuit.

Q: Is the wiring harness between receiver antenna module

connector C-30 (terminal No. 1, 2) and the KOS-ECU
connector C-102 (terminal No. 12, 11) in good
condition?
YES : Go to Step 3.
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 harness as necessary.

STEP 3. Replace the receiver antenna module, and check
whether the diagnostic trouble code is reset.

CAUTION

To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
(1) Connect scan tool MB991958. Refer to "How to connect

scan too (M.U.T.-III)

P.42B-13

."

(2) Erase the DTC.
(3) Turn the ignition switch from the "LOCK" (OFF) position to

the "ON" position.

(4) Check if the DTC is set.
Q: Is the DTC set?

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

to

P.42B-15

.)

NO : The procedure is complete.

ZC501967

AC404789

AC701411AB

MB991824

MB991827

MB991910

Data link
connector