Registration with scan tool MB991958

WARNING: This page is about a different car, the 2004 Mitsubishi Eclipse. However, it is still accessible from the selected car via links, so may be relevant.

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.

NOTE: Before registration, check that no DTC code is set. If a DTC code is set, resolve the problem beforehand.
Using the key ID register function will cause all key IDs that have been previously registered in the immobilizer-ECU to be erased. All keys need to be registered. Those which have been registered before should be on hand before using this function.
If registering more than one key, do not disconnect scan tool MB991958 halfway through the registration process. After registering key IDs, check that the engine can be started using all of the keys that have been registered. If the engine will not start, refer to Immobilizer System Diagnosis under DIAGNOSTIC TROUBLE CODE CHART .

Connect the scan tool MB991958 to the data link connector.
Turn the ignition switch to "ON" position.

Fig 1: Connecting Scan Tool MB991958 To Data Link Connector
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Select "Interactive Diagnosis" from the start-up screen.

Fig 2: Selecting "Interactive Diagnosis" From Start-Up Screen
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Select "System select."

Fig 3: Selecting "System Select "
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Choose "IMMOBILIZER" from the "POWER TRAIN" tab.

Fig 4: Choosing "Immobilizer" From "Power Train" Tab
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Choose "Special Function" from "IMMOBILIZER" screen.

Fig 5: Choosing "Special Function" From "Immobilizer" Screen
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Choose "Key registration" from "Special Function" screen.

Fig 6: Choosing "Key Registration" From "Special Function" Screen
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Enter the vehicle's password (secret code) on the "Key registration" screen, and then click the check mark icon. Follow the prompts on the screen to insert key(s) into the ignition switch to begin key registration.

Fig 7: Key Registration Screen
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
If the key ID was registered successfully, "Progress" indication will turn active (gray). Then the registration process completes. If the key ID failed to be registered, "In-Complete" indication will turn active (gray).
The number of keys currently registered will be displayed. To register an additional key, replace the ignition key with the next key to be registered within five seconds. Key ID registration screen will be displayed, then register another key.
NOTE: A maximum of eight different keys can be registered.

Fig 8: Immobilizer ECU Registration Screen
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
This completes the registration operation. Turn the ignition switch "LOCK" (OFF) and leave it off for approximately ten seconds.
Check that the engine can be started with each of the ignition keys.
Check that the immobilizer system DTC and MFI system DTC did not set.
If not DTC is shown, terminate the scan tool MB991958.
Turn the ignition switch to "LOCK" (OFF) position.
Disconnect scan tool MB991958.

Registration of additional keys with the scan tool

Additional key(s) can be registered with the scan tool while keeping all existing key data.

CAUTION: To prevent damage to scan tool MB991958, always turn the ignition switch to "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958.

NOTE: To register additional keys with the scan tool, no registered keys must be lost.

Connect scan tool MB991958 to the 16-pin data link connector.
Turn the ignition switch to "ON" position.
NOTE: Before registration, check that no DTC code is set. If a DTC code is set, resolve the problem beforehand.
Carry out steps 3 to 6 to"Registration with scan tool."

Fig 9: Connecting Scan Tool MB991958 To Data Link Connector
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Choose "Transponder ID addition" from "Special Function" screen.

Fig 10: Choosing "Transponder Id Addition" From "Special Function" Screen
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Enter the vehicles password (secret code) on the "Transponder ID addition" screen, and then click the check mark icon.

Fig 11: Entering Vehicles Password (Secret Code) On "Transponder Id Addition" Screen
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
If an additional registration is made successfully, the screen will ask if another key is registered or not. If the third ignition key is registered, remove the key, which has been registered. Then insert the third key within five seconds, and then turn it to the ON position.
Register the additional ignition key according to step 6 above. The number of the registered ignition keys are shown on "The number of registered key" screen.
NOTE: A maximum of eight different keys can be registered.

Fig 12: Transponder ID Addition Screen
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
This completes the registration operation. Turn the ignition switch "LOCK" (OFF) and leave it off for approximately ten seconds.
Check that the engine can be started with each of the ignition keys.
Check that the immobilizer system DTC and MFI system DTC did not set.
If not DTC is shown, terminate the scan tool MB991958.
Turn the ignition switch to "LOCK" (OFF) position.
Disconnect scan tool MB991958.