B2511 is a either a "steering wheel control convenience key stuck" or "horn output relay circuit short to battery" (means a button on the steering wheel is jammed - also could be as a result of holding a button down for too long and the ECM has determined it has a fault even if it is still functioning properly). The next code is a bit more concerning as it could be reading as a "centre airbag error" on some ECM's, while others show a "lamp backup input circuit failure" (if there isn't an airbag error light on, I'd think it's the lamp backup). Try clearing the codes and then see which code reappears to confirm the error code fault.
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B2511 is a either a "steering wheel control convenience key stuck" or "horn output relay circuit short to battery" (means a button on the steering wheel is jammed - also could be as a result of holding a button down for too long and the ECM has determined it has a fault even if it is still functioning properly). The next code is a bit more concerning as it could be reading as a "centre airbag error" on some ECM's, while others show a "lamp backup input circuit failure" (if there isn't an airbag error light on, I'd think it's the lamp backup). Try clearing the codes and then see which code reappears to confirm the error code fault.