I dont know anything that reads them in circuit, I use ETL and AK500. ETL reads them around 80-90%, some can never be read. If it doesnt read after first few attempts heat the MCU a bit, if it doesnt read again heat it up a bit more and so on.
Do not overheat it, you will kill it if it is not already dead. Keys can be made from the 2nd MCU that is inside. It is a PITA to be removed, but sometimes that saves the day. Steering lock has 2 Motorola MCUs inside and is resetd simply, after that it becomes universal and works with every EIS. Shorts the interior CAN and nothing works. When the key is removed from the ignition the steering lock doesnt move to lock position. I have success replacing the outside MCU with another one and switch the EEprom. I am putting used MCUs, but has to be outside MCU from another EIS as the flash data is different. Sometimes the steering will unlock when the key is inserted, but it cannot be turned. It is end of life of the key (200 000 insertions) or has hash error in the key. Honestly I have never had a good success with reprogramming Motorola keys so i just throw them in the drawer and make another NEC key. Last one I got was weird: at 13v or more it works fine, at less than 13v the key cannot be turned. I will post results when/if I find a solution. On the pictures below you can see the behaviour of a healthy 210 EIS.ģ0mA on idle. If the current is 20mA or 40mA, or even bigger difference, there is a very big chance that the EIS has some problems. These EIS go to sleep mode very quickly and current drops to 0.
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