Exhaust Gas Recirculation Sensor "C" Circuit High

The exhaust gas recirculation sensor C is reporting a voltage reading that is too high, typically caused by a wiring open circuit, bad connection, or defective sensor. The engine relies on this signal to manage emissions and engine efficiency, so a fault can degrade performance and drivability. Have the sensor and its wiring inspected promptly to avoid running issues.

No detailed repair guide linked yet. Check back soon or search for related issues.