X5 stalled/set codes while being inspected!

[workingonit]

Originally Posted by andrewwynn

If it's your only RFID key you should do something about that. Valet key from the dealer may be the only cost effective option.


–awr–

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Wait a second, have I been thinking wrong about the ignition key situation?

If a non-battery-powered valet key will turn on the ignition, then it's the RFID chip inside that's doing the trick.

It's passive, being read by the ring antenna on the steering column, so my problem with intermittent starting (cranking) is not a key problem, but lies elsewhere.

Perhaps the chip is loose inside the diamond key shell, and sometimes is too far away from the antenna to be detected, or the antenna is starting to fail, or is it the switch itself? There's always a chance that the EWS module is giving up, too.

Just overthinking again.



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