Porsche Cayenne 2003 v8 4,5L Nothing happening when i put the key

[dollarbill]

Hi for all
i have a cayenne in my workshop and nothing happen when i put the key the remote don't work when i open the door with the key and i put the key in eis only alarm work.
I say the history the customer lost the key i make one with avdi all good the vehicle start remote work all good . The customer leave the car one week on the workshop i did a key . He came back but nothing the remote don't work don't start one week earlier all good . He phone me the key don't work . He bring it back in my workshop I check all fusible and relays and wires and battery in the driver side all good . I think the kessy is out i buy another and adapt but it's the same the car made me crazy . When i short fuse 26-36 and i diagnose i can read the fault in the ecu kessy etc and all fault and module is can't communicate with all module eis steering lock etc... I think no communicate can drive and confort but i check all fuses wires and relays all good if someone have a idea big thanks in advance for help

[SPIROS2105]

i had a same problem and i solved with vag com
did you fixit?

[ohkarol]

first - resolder coil in key..

[rideon]

There are a lot of wires to check on that car....
If you have communication issues you can start with front bumper and finish with the rear one
I'll search for water ingress, been raining lately?

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