I had a 2016 Porsche Cayenne in the shop for a spare key, so I used the KEYDIY KD-X6 with the KD-EPA Adapter for the job. The same Pin-Free procedure also works for all keys lost. This setup worked for reading the BCM data and adding the KD key.
Read the BCM Data
- Remove the BCM from above the accelerator pedal and check the module. This one is 434 MHzwith a 1N35H chip.
- On the Keydiy KDX6, go to Immo Programming >> Universal Programmer >> Read File >> IMMO >> PORSCHE, select the chip model, and connect the KD-EPA
- Follow the wiring diagram for the 1N35H ceramic crystal oscillator version. Remove the two specified components and cut the trace at the crystal oscillator. Check the cut with a multimeter to confirm there is no connection.
- Select BCM-IN35H(Backup Read) >> D-FLASH >> Read >> OK >> Start Executionand save the file. Make sure the chip is connected properly before starting.
- Read the second file through P-FLASH >> Read >> OK >> Start Execution.
Generate the Dealer Key
Reinstall the BCM in the vehicle before generating the key.
- Go to Immo Programming >> Immo Programming >> PORSCHE >> OK >> Older Porsche 49 >> Start Execution >> Generate dealer key.
- Select 5M48H, load the EEPROM file, select an empty key slot, and choose Generate Key >> OK.
- Select KD ZB Smart Key>> 434.42MHz, then place the KD smart key in the sensing coil.
Learn the Keys
- Remove the handle and take all keys out of the vehicle. Go to Immobilizer Statusand follow the on-screen prompt to turn on the ignition. If all keys are lost, turn on the hazard lights.
- The system shows 2 keys, with the current key identified as the dealer key. Go to Key Learning >> Load EEPROM data, enter 2 as the number of keys, read the prompts, and click OK.
- Follow the prompt to learn the first key. When successful, the dashboard shows 02-01. Remove it and insert the second key within 30 seconds, then follow the prompt to finish learning.
- After matching, remove the key and press the unlock button on each key used in the process. The dashboard shows 02-02, and the wipers wipe once.
Final Check
Test both keys. The vehicle starts normally and the key functions work as expected.
Video Guide:
