Porsche Cayenne 2014 5M48H BCM key programming successfully done by Xhorse VVDI Key tool Plus Pad. Read D-Flash and make key, no need to write back dump.
Read EEPROM D-flash
Generate dealer key
Remove BCM 5m48h under instrument dashboard
Connect BCM with key tool plus via 9S12XE v1 adapter follow by the wiring diagram
*If don’t want solder job, try Porsche Fast Easy Cable without soldering.
Select Prog function->IMMO->Porsche->Porsche->BCM 5M48H Backup (Weld)
2. Generate dealer key
Insert key into ignition switch and turn on ignition switch
Select IMMO programming function->Porsche->NEW Porsche Key-Generate dealer key
Insert key into ignition and turn on,
Turn off and remove key
Insert key into xhorse key tool plus induction coil
3. Learn Key
Start key learning
Remote control works. The new key will start engine.