Tested ok to use TMPro 2 to do Land Rover Discovery 3 all key lost programming, below are detailed steps:

Step 1: Disassemble CEM

The car is all key lost, first open the door with tool, disassemble CEM which located behind glove box from passenger’s seat, open the CEM case to obtain electronic board


Step 2: Read data with TMPro 2

TMPro 2 software module 181 is for land Rover / Range Rover CEM, buy this module then we can read and program PIC18F6620 with TMPro 2. Download connection diagram, connect electronic board as per diagram to read data and save.




Step 3: Write key with TMPro 2

Prepare new PCF7936 transponder chip, load the data in step 2, insert 7936 chip to TMPRO key programmer, and then write key.


Step 4: check encrypted chip

After generating chip, need to check it is encrypted, use KD-X2, vvdi key tool, Mini900 or handy bay to test. If encrypted, prove write key in step 3 is successful. With written chip installed in key, ready to start car.


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