The DTC code C0221 in a Ford vehicle is a sign that the onboard computer has registered the following anomaly:
"Right Front Wheel Speed Sensor Input = 0"
Although this is a standardized OBD2 code, the symptoms and the location of the faulty sensor can vary depending on the exact model of your Ford (year, engine type, etc).
Instead of changing parts blindly, use the CarWatch AI assistant. Scan your Ford's sensors in real-time and find out the root cause of the C0221 fault before going to the shop.
👉 Diagnose my Ford for FreeTo clear the engine light and read the C0221 code from your phone, you need an OBD2 adapter compatible with the Ford ECU.
🛒 View Compatible Scanner on Amazon