Antitheft - Registration Of Additional Immobilizer Keys
No: TSB-01-00-012DATE: August, 2001
MODEL: See Below
SUBJECT:
IMMOBILIZER KEY REGISTRATION - 2002 MODELS
PURPOSE
Procedures for registering additional keys for Immobilizer equipped Mitsubishi vehicles is changed and simplified for the 2002 model year. This bulletin contains the new key registration procedures
BACKGROUND INFORMATION
The current Immobilizer system in 2000 and 2001 model year vehicles requires that ALL ignition keys, both existing and new, must be registered with the Immobilizer ECU using the MUT-II scan tool and a password, if an ignition key is lost or if additional keys are needed. For 2002 model year, the Immobilizer ECU will allow registration of additional ignition keys using the new ADDITIONAL KEY REGISTRATION METHOD. By using this method, the MUT-II scan tool and a password are not needed if at least TWO originally registered keys are available.
NOTE:
If any originally registered key is lost, and there is only one original key available, the current MUT-II scan tool procedures must still be used to add new keys and re-register the remaining original key.
AFFECTED VEHICLES
2002 Eclipse
2002 Eclipse Spyder
2002 Galant
2002 Montero
2002 Montero Sport
NOTE
The Immobilizer system is not an available feature on the 2002 model year Mirage and Lancer vehicles.
PROCEDURES
Additional Key Registration Method (without MUT-II and password)
NOTE:
At least TWO originally registered keys must be available to use the following procedures.
1. Turn the ignition switch ON with the first key (key-A). This key must be one of the originally registered ignition keys.
2. If the first key is correctly registered, the Immobilizer-ECU will go into waiting status for the second key (key-B). The ignition must be in the ON position with key-A inserted for at least 5-seconds for the ECU to go into waiting status.
3. Turn the ignition switch to OFF, remove key-A, then insert key-B. Turn the ignition switch to ON, using key-B within 7-seconds.
NOTE:
key-B must be an originally-registered key. If there is no second originally registered key refer to the appropriate service manual and register all keys using the current MUT-II/password method.
4. If both key-A and key-B are correctly registered, the Immobilizer indicator lamp will blink twice. This signals that the Immobilizer-ECU has entered the ADDITIONAL KEY REGISTRATION MODE.
5. Turn the ignition switch to OFF. Insert the new key to be registered into the ignition switch and turn the switch ON within 7-seconds. The new key is now registered to the vehicle. The indicator lamp will illuminate for 3-seconds to signal the new key is registered. If an error occurs, the indicator lamp will blink 3-times.
NOTE:
key registration must be completed within 30-seconds after the indicator lamp stops blinking.
6. To register more keys, repeat step 5. A maximum of eight (8) keys can be registered to a vehicle.
7. After all keys are registered, start the engine with each key to make sure all keys are registered properly.
Immobilizer Key Registration Reference table
ADDITIONAL NOTES:
^ ADDITIONAL KEY REGISTRATION MODE will be cancelled if any of the following occur:
^ The ignition switch is kept ON for over 30-seconds.
^ When the engine control relay is OFF.
^ The Immobilizer ECU starts communication with the MUT-II.
^ Any newly registered key can start the engine only after that key turns the ignition switch OFF and the engine control relay is OFF. Turning the ignition switch ON again, will then allow the engine to start with the new key.
^ The Immobilizer Override function does not operate when the Immobilizer-ECU is in key registration mode.
^ 2002 model year vehicles use a new-style key blank. The key blank for previous model year (2000 & 2001) Immobilizer equipped vehicles will not work in a 2002 model vehicle.
PARTS INFORMATION
Refer to CAPS for the correct key blank part number for the vehicle you are servicing. You must use the proper key blanks supplied specifically for the 2002 model year vehicles. Key blanks for previous model year (2000 & 2001) Immobilizer equipped vehicles will not work for 2002 models.
WARRANTY INFORMATION
This bulletin is for information only. No special warranty applies.