P2C51

Symptoms

• Incorrect fuel level readings on the dashboard
• The fuel level arrow jumps or shows incorrect values
• Check engine light comes on
• Remaining fuel is not displayed accurately
• The system can show an empty tank when there is fuel

Causes

• Fuel level sensor A or B faulty
• Problems with wiring to sensors
• Short circuit or open circuit in the sensor circuit
• Poor contact in sensor connectors
• Mechanical damage to sensor floats

How to Fix

1. Check the resistance of the fuel level sensors
2. Inspect wiring and connectors for damage
3. Check the integrity of the sensor circuit
4. Replace a faulty fuel level sensor
5. Calibrate sensors after replacement

Related codes

Error P2C51 by Vehicle Brand