The OBD-II code P2573 refers to a malfunction in the Direct Ozone Reduction Catalyst Deterioration Sensor Circuit. This code indicates that there is an issue with the sensor responsible for monitoring ozone reduction in certain Super Low Emissions Vehicles (SULEV).
What Does the P2573 Code Mean?
The P2573 code signifies that the Environmental Air Catalyst (EAC) sensor, which is hardwired to the radiator, is not functioning as intended. This sensor plays a critical role in reducing emissions and ensuring the vehicle meets environmental standards.
What Causes the P2573 Code?
Several factors can trigger the P2573 code, including:
- Failure of the EAC sensor itself, which is part of the radiator assembly.
- Improper coding of the EAC sensor to the powertrain control module (PCM).
- Installation of an aftermarket radiator that does not meet the manufacturer’s specifications.
What Are the Symptoms of the P2573 Code?
Drivers may notice several symptoms when the P2573 code is present, such as:
- Illuminated check engine light.
- Decreased fuel efficiency.
- Potential increase in vehicle emissions.
- Performance issues related to engine power and responsiveness.
How Serious Is the P2573 Code?
The P2573 code is categorized as urgent, meaning immediate action is necessary. Failure to address this issue can lead to severe damage to the vehicle and may pose risks to the driver and passengers due to increased emissions.
How to Diagnose the P2573 Code
Diagnosing the P2573 code involves a series of steps:
- Use an OBD-II scanner to confirm the presence of the P2573 code.
- Inspect the EAC sensor and its wiring for any visible damage.
- Check if the sensor is properly coded to the PCM.
- Evaluate the radiator to ensure it meets manufacturer specifications.
Common Repairs for the P2573 Code
Common repairs for addressing the P2573 code may include:
- Replacing the EAC sensor if it is found to be faulty.
- Reprogramming or recoding the EAC sensor to the powertrain control module.
- Installing an original equipment (OE) radiator that meets specifications.
How Much Does It Cost to Fix the P2573 Code?
The cost to repair the P2573 code can vary significantly based on the specific repairs needed. Expect to pay anywhere from $150 to $1,500, depending on whether sensor replacement, recoding, or radiator installation is required.
Can I Fix the P2573 Code Myself?
While some basic diagnostic steps can be performed by a knowledgeable DIY enthusiast, fixing the P2573 code often requires specialized tools and knowledge, particularly when it comes to sensor coding and radiator compatibility. It is recommended to consult a professional mechanic for a thorough diagnosis and repair.
