I'm thinking K40/voltage or a DAS issue.

If you are convinced its not the K40 or voltage you might try re-syncing the key.

Does the steering wheel lock retract as the key is inserted? Thats the start of the security sequence.

__________________
Terry Allison
N. Calif. & Boca Chica, Panama

09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)