Antitheft System - Updated Service Information: Overview
No: TSB-03-54-007DATE: June, 2003
MODEL: See Below
SUBJECT:
IMMOBILIZER SYSTEM INFORMATION UPDATE (2003 MODELS)
PURPOSE
This bulletin contains updated service information concerning the "Anti-theft engine immobilizer with security keys" feature on certain 2003 model year Mitsubishi vehicles.
BULLETIN CONTENTS
BACKGROUND INFORMATION
PROCEDURES:
A. Immobilizer Override Code
B. Immobilizer Override Procedure
C. Immobilizer Ignition Key Registration
PARTS INFORMATION
WARRANTY INFORMATION
AFFECTED VEHICLES
2003 Diamante
2003 Eclipse
2003 Eclipse Spyder
2003 Calant
2003 Lancer Evolution
2003 Montero
2003 Montero Sport
NOTE:
The 2003 model year Lancer ES/LS/OZ-Rally and Outlander vehicles DO NOT have the "Anti-theft engine immobilizer with security keys" feature.
This bulletin is for 2003 model year vehicles ONLY. Specifications and procedures for previous and subsequent years may differ. 2004 models will be addressed in a future bulletin.
BACKGROUND INFORMATION
Introduced during the 2000 model year, the "Anti-theft engine immobilizer with security keys" is designed to significantly reduce the possibility of car theft. The system immobilizes the vehicle if an invalid start is attempted. A valid start can only be accomplished (subject to certain conditions) by using a special transponder key "registered" to the ignition switch lock.
For complete system description and operation summary, refer to the service manual for any of the listed affected vehicles.
Two or three keys are provided with each vehicle. For some vehicles, one of these keys may be a valet key. The master keys (black) fit all locks, whereas the valet key (gray) fits all locks except for the glove box and trunk. The immobilizer system allows up to 8 different key ID codes to be registered; a customer can possess up to 8 keys for a vehicle. If a customer requests extra keys, the new keys must be registered to operate with the system. There are two ways to register new keys, both of which are covered in this bulletin. New keys can be cut from a transponder key blank available from MMSA Parts (refer to the PARTS INFORMATION section shown).
If keys are lost or if additional keys are needed, new immobilizer keys can be cut using the key code and a transponder key blank. New keys must be registered with a new ID code to operate properly with the Immobilizer ECU. Unless there are at least 2 original keys, all keys, both new and existing, must be registered using the MUT-II or MUT-III (refer to SECTION B, Immobilizer Ignition Key Registration Procedures elsewhere in this bulletin).
PARTS INFORMATION
Transponder key blanks for 2002 & 2003 model year vehicles are different from those for the 2000 & 2001 model year vehicles. Make sure you have the correct key blanks for the vehicle being serviced. 2000-01 key blanks WILL NOT work in 2002 & 2003 vehicles and vice versa.
Using the wrong transponder key blank will cause fault codes to set in the PCM. For 2002-03 Eclipse, Eclipse Spyder, and Galant, use key blanks stamped "N". 2002-03 Diamante, Montero, and Montero Sport and 2003 Lancer Evolution key blanks are marked with a small circle (although the 2003 Lancer Evolution key blank is marked in the same manner as the key blank for the Diamante, Montero, and Montero Sport, it has a different part number. Refer to the part number chart which is shown.) 2000-01 Eclipse, Eclipse Spyder, and Galant key blanks are marked "R". 2000-01 Montero, Montero Sport, and Diamante key blanks have no markings. KEY BLANKS FOR 1999 AND EARLIER MODEL YEAR VEHICLES AND KEY BLANKS FOR 2002-03 LANCER (ES, LS, OZ Rally), MIRAGE, AND 2003 OUTLANDER ARE NOT TRANSPONDER EQUIPPED AND CANNOT BE REGISTERED FOR IMMOBILIZER EQUIPPED VEHICLES.
NOTE:
To check a key to make sure it can be registered, use the procedures in TSB-02-54-004.
WARRANTY INFORMATION
This bulletin is for information only. No special warranty procedures apply.
Override procedures, key cutting/key registration, and towing as a result of lost keys are NOT warranty covered items.