This article show a guide on how to do all keys lost programming for Lexus E350 2013 smart keys.There are some method to do all keys lost programming for Toyota Smart keys,because special programmer update powerful,even some device can do this work by OBD.But if your workshop only have a few business,you don’t want to pay extra money to buy device,you can try this method by initialize manually method.And for more Lexus Key Programming,check here:Lexus Key Programming
Toyota Smart Card Data Combination Summary:
1.Immobilizer ID Box (93C66) and Smart Box (93C86)
2.Steering Column (93C66) and Smart Box (93C86)
3.Immobilizer ID Box (93C66) and Smart Box (93c86)
The first and second Toyota smart card data combination are common in daily work,and if the key chip is G and the immo data format is similar,the initialization of data is same.(8A chip not include).
And for the third type data combination is in the example,here Lexus E350 immobilizer system is equipped with this type.
Step1:Initialize Immo Box 93C56 Data
The immo box locate behind the instrument cluster evaporator,locate it the immobilizer box item number is 89784-33030.Disassemble the cover,and take out PCB,you will locate 8 pins chip 93C56.
User programmer to read out immo data from 93C56,the immobilizer data show as below:
Change all digits bytes from 000-090 line to “F”,only keep the data in the red marked unchanged.
Then save the modified data,and write this data back to 93C56 chip.
Step 2:Smart Box Data 93c86 Initialization
The smart box is locate behind glove box,remove it item number 89990-33330.
Disassemble the cover and remove the chip 93C86 from PCB,and read out data as below show.
Only keep the data in the red marked unchanged,and change all other data digits bytes to “F”.Then save the modified data,and write this data back to 93C86 chip.
Step 3:Programming Keys
After install the immobilizer box and smart box back to vehicle,connect universal key programmer to vehicle,you can now perform new keys programming.
Press “One-start” button,the dashboard will light on,and follow the universal key programmer to program new smart card keys.
Last,you need to connect 4th pin and 13th pin of OBD to perform synchronization for about 45 minutes.