No power after flashing?

2009 BMW 535I
148,000 MILES
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VHOUSTON91
  • MEMBER
  • 1 POST
I had a locksmith come out to try and program a key for the car listed above with all keys lost and he lost all communication with the BMW and all power except for the hazard lights. what can I do to fix this?
Nov 26, 2022 at 3:01 PM
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JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
Hi,

What was he doing when this happened? Also, if I understand, everything except the hazard lamps have failed. How long was he working on the vehicle? Have you checked the battery itself? Have you tried scanning the controller area network to see if there are diagnostic trouble codes?

Here is a link explaining how that is done:

https://www.2carpros.com/articles/can-scan-controller-area-network-easy

Reprogramming a module should not have caused a total failure of the electrical system. That is why I'm a bit confused, I'm not sure what he was doing when it happened.

Let me know.

Joe

Nov 27, 2022 at 10:49 PM
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