DTC nightmare

[Lastofthebreed]

Ok this is what I got from my scan.

[PCM] P0463 - Fuel Level Sensor Circuit High Voltage (Pending) (History) (Current) (Immature)
[Restraints] B0016 - RF/Passenger Frontal Deployment Loop (Single Stage or Stage1) Resistance Low (History) (Immature)
[Unknown] B2960 - Sec Sys Sensor Data Incorrect but Valid (History) (Immature)
[Unknown] B2958 - Security System Sensor Data Circuit High (History) (Immature)
[Brake] C1218 - Pump Motor Circuit Shorted to Voltage or Motor Ground Open (History)
[Restraints] B1000 - ECU Malfunction (History) (Current) (Immature)
[Brake] C1245 - Unknown (History) (Current)
[Restraints] B1001 - Option Configuration Error (History) (Immature)

Where the H*** do I start? I notice that there is an ECU manlfunction so could some of these be eroneous? C1245 isnt even used!

Any help would be great. This is from a 2000 Buick Century.

[devildog9999]

Most of them are BCM codes - disregard.

[Lastofthebreed]

So
[PCM] P0463 - Fuel Level Sensor Circuit High Voltage (Pending) (History) (Current) (Immature)

Is the only one to really worry about?
Which one of these would cause the ABS light to light? I thought it should have been this one.

[Brake] C1218 - Pump Motor Circuit Shorted to Voltage or Motor Ground Open (History)