Writing Procedure

WARNING: This page is about a different car, the 2008 Mitsubishi Lancer. However, it is still accessible from the selected car via links, so may be relevant.

Required Special Tools:

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

CAUTION: Check that diagnostic trouble code P0603 "EEPROM fail" is not set. When diagnostic trouble code P0603 "EEPROM fail" is set, the ECM cannot store the key code even if the key code is registered. If this diagnostic trouble code is set, troubleshoot the ECM and repair. Then register the key code to the ECM.

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.

Fig 1: Connecting Special Tool MB991827 To Special Tool MB991824 And Personal Computer

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

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.

Fig 2: Scan Tool Display - OK Button

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Select "Special Function" on the next screen.
Select "ENG key code & VIN Reg." from the "Special Function" screen.

Fig 3: Scan Tool Display - "ENG Key Code & VIN Reg."
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Fig 4: Scan Tool Display - IMMOBI, Keyless And TPMS Selected
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Push the OK button after "ENG key code & VIN Reg." is displayed.
Push the OK button after "Completed. Press the OK button and move to VIN writing function." is displayed.

Fig 5: Scan Tool Display - OK Button
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Enter the VIN of registering vehicle and push the OK button.
Push the OK button after "VIN Writing will start. Are you sure?" is displayed.
Return to the previous screen and "In Progress" is displayed at the lower-left corner on the screen.
Push the OK button after "Completed." is displayed.

Fig 6: Scan Tool Display - New VIN
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
VIN writing result is displayed.
Complete the scan tool MB991958.
Disconnecting the scan tool MB991958 is the reverse of the connecting sequence, making sure that the ignition switch is at the "LOCK" (OFF).
Push the OK button after "Completed." is displayed.
Terminate the scan tool MB991958.
Turn the ignition switch to the "LOCK" (OFF) position and then disconnect scan tool MB991958.

Fig 7: Scan Tool Display - Result Of VIN Writing
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.