Registration With The Scan Tool

WARNING: This page is about a different car, the 2004 Mitsubishi Galant. 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 "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 .

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: Display Interactive Diagnosis Screen
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Select "System select."

Fig 3: Display Interactive Diagnosis Screen - System Select
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Choose "IMMOBILIZER" from the "POWER TRAIN" tab.

Fig 4: Display Interactive Diagnosis Screen - Immobilizer From Power Train
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Choose "Special Function" from "IMMOBILIZER" screen.

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

Fig 6: Display Interactive Diagnosis Screen - 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: Display Interactive Diagnosis Screen - Key Registration
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).

Fig 8: Display Interactive Diagnosis Screen - Progress
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
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.
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.