Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that a sensor in the car is reading a temperature that is too high. It's like a thermometer telling you it's too hot.
The P2570 code indicates that the Direct Ozone Reduction Catalyst Temperature Sensor is reporting a higher than expected voltage, which suggests that the temperature reading is too high.
The Direct Ozone Reduction Catalyst Temperature Sensor monitors the temperature of the catalyst used to reduce ozone emissions. A 'circuit high' condition means the sensor is detecting a temperature that is higher than the preset threshold, possibly due to a wiring issue, sensor malfunction, or actual high temperature.
• Check Engine Light is on
• Possible reduction in engine performance
• Increased emissions
• Faulty temperature sensor
• Wiring issues such as shorts or open circuits
• Actual high temperature due to catalyst issues
Catalyst: A substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
OBD-II: On-Board Diagnostics, a standardized system in vehicles for self-diagnosing and reporting.
• Use an OBD-II scanner to confirm the code
• Inspect the wiring and connections to the temperature sensor
• Test the temperature sensor for proper operation
• Replace the faulty temperature sensor
• Repair or replace damaged wiring
• Inspect and service the catalyst if necessary
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $400
Moderate
• Toyota Prius
• Honda Insight
• Ford Fusion Hybrid
• Regular maintenance checks
• Ensure proper engine tuning
• Monitor exhaust system health
Sensor Issue
• Have the vehicle inspected by a professional
• Avoid driving the vehicle hard until repaired
Check with the manufacturer for warranty coverage on emissions-related components.
This code is relatively rare and is typically seen in hybrid or low-emission vehicles.
Moderate – While the vehicle may still be drivable, emissions and performance could be affected.
Driving with a malfunctioning emissions system may violate emissions laws and can lead to increased pollution.
• Engine at operating temperature
• Vehicle in a safe location
The temperature sensor is typically located near the catalytic converter in the exhaust system.
Q: Can I drive with a P2570 code?
A: It's possible, but not recommended due to potential emissions and performance issues.
Q: What happens if I ignore the P2570 code?
A: Ignoring the code can lead to increased emissions and possible damage to the catalytic converter.
Budget · Enhanced code reader
A wired color-screen reader with readiness hotkeys, live data, code definitions, and data logging.
Good for emissions-related codes because it exposes readiness monitors and live powertrain data.
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Specialty · Smoke machine
Helpful for finding EVAP and vacuum leaks that are hard to see with visual inspection alone.
Helpful for tracking down EVAP and vacuum leaks that can trigger emissions faults.
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Specialty · O2 sensor socket
Helpful when the code points toward exhaust or oxygen-sensor work and space is tight.
Useful when the diagnosis points toward oxygen-sensor removal or replacement.
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Fitment Required · Vehicle-fitment part
Relevant when catalyst-efficiency or emissions faults persist after proper diagnosis.
Catalyst-efficiency faults sometimes point toward converter problems after proper testing.
Catalytic converters are highly vehicle-specific and should not be purchased by code alone.
View options on AmazonThese parts may be related to this fault category, but a code by itself does not confirm exact fitment or guarantee that replacing a part will solve the problem.