Sorry for the late reply.
Code 11 usually means, the vehicle hasn't been cranked since battery was disconnected.
Code 12 means, memory standby power lost at some point.
Code 43, ignition coil control circuit.
Code 55, is end of codes.
Make sure the battery has a full charge.
I realize this is an old post and you probably no longer own this vehicle. In the future, hope you don't have any vehicle problems. If you do, keep the site in mind. They are always working to make the site better. It's free.
Have a good day.
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Sunday, March 22nd, 2015 AT 10:08 AM