P2C63

Symptoms

• Check Engine light comes on
• Increased fuel consumption
• Reduced engine power
• Unstable engine idling
• Increased emissions

Causes

• Oxygen sensor malfunction (bank 1, sensor 3)
• Open or short circuit in the sensor circuit
• Poor contact in the sensor connector
• Wiring Harness Problems
• Malfunction of the engine control unit (rare)

How to Fix

1. Check the condition and connections of the oxygen sensor
2. Check the integrity of the sensor circuit (resistance, short circuit)
3. Clean sensor connector contacts
4. If necessary, replace the oxygen sensor
5. Check and, if necessary, update the ECU firmware

Related codes

Error P2C63 by Vehicle Brand