VIN Writing Steps For WCM And Kos-Ecu

WARNING: This page is about a different variant/trim than selected.

CAUTION: Before the VIN registration to WCM and KOS-ECU, check that the VIN of ECM and vehicle are matched.

CAUTION: Check that diagnostic trouble code B2416 "ECU internal error" is not set. When diagnostic trouble code B2416 "ECU internal error" is set, the WCM and the KOS-ECU cannot store the VIN even if the VIN is written. If this diagnostic trouble code is set, troubleshoot the WCM or the KOS-ECU and repair. Then write the VIN to the WCM or the KOS-ECU.

CAUTION: Before connecting or disconnecting the MB991958: Scan Tool, turn the ignition switch to the "LOCK" (OFF) position.

Connect scan tool MB991958 to the 16-pin data link connector as follows.

NOTE: For details on how to use scan tool MB991958, refer to the M.U.T.-III Owner's Manual.

Ensure that the ignition switch is at the "LOCK" (OFF) position.
Start up the personal computer.
Connect special tool MB991827 to special tool MB991824 and the personal computer.
Connect special tool MB991910 to the special tool MB991824.
Connect special tool MB991910 to the data link connector of the vehicle.
Turn the special tool MB991824 power switch to the "ON" position.
NOTE: When the special tool MB991824 is energized, the special tool MB991824 indicator light will be illuminated in a green color.
Start the "M.U.T.-III system" on the personal computer and turn the ignition switch to the "ON" position.
Select "F. A. S. T./IMMO/Keyless/TPMS" button from the "System Select" screen. Then, select the applicable option code item and push the OK button.
Select "Coding" on the next screen.

Fig 1: Connecting Special Tool To Data Link Connector
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Fig 2: Screen Display - F.A.S.T./IMMO/Keyless/TPMS
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Select "VIN Writing" on "Coding" screen.

Fig 3: Screen Display - VIN Writing
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Push the OK button after the VIN written in the engine control module is displayed.
Push the OK button after "VIN Writing will start. Are you sure?" is displayed.
Push the OK button after "Completed." is displayed.

Fig 4: Screen Display - Ok Button
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Result of VIN writing is displayed.
Resister the other ID code. (Refer to ID CODE REGISTRATION JUDGMENT TABLE <Vehicles with KOS> or ID CODE REGISTRATION JUDGMENT TABLE <Vehicles with WCM>.)

Fig 5: Screen Display - VIN Writing
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.