00-05 Toyota TOY57 Transponder Key (4C) (Aftermarket)

Key Blank:

Measurements:

KEY SPECIFICATIONS

Transponder Chip: Texas Instruments 4C
Keyway: TR40
Reusable: Yes
Cloneable: Yes
Condition: New Aftermarket Replacement

Replaces Key Types:
Ilco TOY57-PT
Bianchi BTOY57-PT
Jet TR40-PHT

VEHICLE COMPATIBILITY

Toyota

2000–2005 MR2 (ECU Reflash Required)
2001–2005 MR2 Spyder

ECU Reflash

Some vehicles do not have direct immobilizer communication through the OBD port.

For these applications, the ECU must be removed and the immobilizer chip written directly to the ECU.

Professional locksmith programmers such as AutoProPAD or IDPro can perform this procedure.
Another option is to remove the ECU and send it to a programming service for reflashing.