05 Cadillac deville codes P0121,P0171,P0174,P0386,P1372,P1811how to fix

Question

need to know what these codes mean

Answer 1

P0121 Throttle position (TP) sensor circuit

P0171 Fuel trim lean Bank 1

P0174 Fuel trim lean Bank 2

P0386 Crankshaft sensor B Performance

P1372 Crankshaft sensor A - B correlation

You have to code that set both state that CKP sensor B is not seen, Its a better approach to resolve that code first