Program Toyota Corolla 2006 4C Chip All Keys Lost with OBDSTAR X300 DP

Here’s the guide on how to initialize ECU box Toyota Corolla Altis year 2006 chip 4C when all keys lost by OBDSTAR x300 dp.

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Engine control Toyota Corolla 2005-2006
3ZZZ-FE denso

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L56R is eeprom 93C56 at IC900 position
Cannot program all keys lost by OBDII.

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Remove ecu and desoldering IC 93c56

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Connect key master DP with VCI and EEPROM PIC adapter
Connect 12V supply electric to EEPROM adapter

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Use hot air to desoldering eeprom 93C56

Solder 93C56 to adapter 93CXX

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Solder 93C56 into eeprom adapter

connect adapter to EEPROM PIC

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Select Diag Program ->EEPROM adapter->EEPROM v33.59-EEPROM ->EEPROM RW (read dump file)->93CXX series->93C56

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Save dump file

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Select Data initialization ->Toyota/Lexus-> Immobilizer initialization->4C Chip- >-05 month 6 (manufactured before year 2005 May)-> Engine initialization (93C56)

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Save dump file before initialization

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Data initialization ok

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Desoldering 93C56 from OBDSTAR X300 DP eeprom adapter
Resolder back to ecu

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Install ecu back to the car. Security light steady.

Program keys as the following steps within 120 seconds:
A: Program 2 master keys and 1 sub key.
1) Insert the 1st master key and wait for 5 sec
2) Insert the 2nd master key and wait for 5 sec
3) Insert the 3rd sub key and wait for 5 sec
Security light turns off and programming is finished.

B: Program 1 master key and 1 sub key.
1) Insert the 1st master key and wait for 5 sec
2) Insert the 2nd sub key and wait for 5 sec
3) Turn on and turn off the ignition switch quickly for 5 times.
Security light turns off and programming is finished.

C: Program 1 master key.
1) Insert the master key and wait for 5 sec
2) Turn on and turn off the ignition switch quickly for 5 times.
Security light turns off and programming is finished.

 

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