P2253 Fault Code
P2253 OBD-II Trouble Code Short Description
O2 Sensor Negative Current Control Circuit High Bank 1 Sensor 1
What does trouble code P2253 mean?
The P2253 fault code indicates an issue with the oxygen (O2) sensor's negative current control circuit for Bank 1 Sensor 1. This sensor plays a crucial role in monitoring the air-fuel mixture in the engine for optimal performance and emission control. When the control circuit indicates a high voltage or current, it can lead to poor engine performance and increased emissions.
Symptoms
What are the symptoms of the P2253 code?
- Check Engine Light is illuminated
- Decreased fuel efficiency
- Rough idling or engine stalling
- Poor acceleration or performance
- Increased emissions during vehicle inspection
Causes
What causes the P2253 code?
- Faulty oxygen sensor
- Damaged wiring or connections in the O2 sensor circuit
- Short circuit in the O2 sensor circuit
- PCM (Powertrain Control Module) malfunction
- Poor grounding in the O2 sensor circuit
Possible Solutions
How to fix P2253?
- Inspect the O2 sensor and its connections for any damage or corrosion
- Test the wiring for continuity and short circuits
- Replace the faulty oxygen sensor if necessary
- Ensure proper grounding for the O2 sensor circuit
- Clear any fault codes and test drive the vehicle to see if the code returns