Golf MK4 2.0L Fault Codes P0102, 16487 and 01314 - ABS Access Issue

I recently purchased a Golf MK4 (also known as Golf 4) with a 2.0L engine, and it's currently displaying two fault codes: P0102 and 16486. Additionally, when attempting to access the ABS system, I receive a code 01314 (ECU 01 Error). I have some understanding of what P0102 typically indicates — a Mass Airflow Sensor (MAF) providing low input signal — but I'm uncertain about the origin of the 01314 error. This issue is critical as it affects both engine performance and safety systems. Given that this car is still in the process of being acquired, I need to evaluate whether to proceed with the purchase or walk away immediately. Any detailed explanation of these fault codes, especially their root causes and potential fixes for the Golf MK4 2.0L model, would be greatly appreciated.