What is the reason for Volkswagen masking fault codes?
1 Answers
Volkswagen masking fault codes is due to fuel quality defects. Fuel quality defects: The P30C000 fault code in Volkswagen models, which indicates defective fuel quality, means the fuel does not meet the required standards. Although not a common issue, it occurs quite frequently, especially in models equipped with the EA211 engine. Fault issues: Short circuit in the cable connector between the hydraulic unit and the control unit or a break in the ground wire. Check the wiring and plug connections according to the circuit diagram, inspect all wires and connectors for poor contact, and replace the control unit if necessary.