Hi,
The B code is related to an open circuit in the key in switch. In most cases, the switch needs to be replaced. However, it could indicate an issue with the wiring to it, the body control module, or even the instrument cluster.
When you put the key in the ignition, does the warning chime turn on?
The P0460 is an issue with the fuel level sensor. The one thing that I see in common is the instrument cluster could cause both.
I attached a schematic showing the circuit for this switch. Keep in mind, it is integral with the ignition switch. There is a fuse designated for it, fuse 28 interior right kick panel, that you could check. See pics below.
Let me know if there is an issue with either of the things I mentioned. Also, if you could possibly record what is happening and upload it for me, it may be helpful.
Let me know.
Joe
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Wednesday, November 17th, 2021 AT 7:21 PM