2009 Chevrolet Malibu P0016 and P0017 Error: Crankshaft Position Sensor A and B Diagnosis and Repair Cost

I visited AutoZone to scan my 2009 Chevrolet Malibu and received diagnostic codes P0016 and P0017, which indicate issues with the crankshaft position sensor A and B. These codes typically point to problems in the engine's timing system, such as a faulty sensor or misalignment. I'm wondering if this issue can be resolved quickly at a local mechanic shop, or if it will require expensive repairs. What are common causes and typical repair costs for these codes on a 2009 Malibu?