P2570: Direct Ozone Reduction Catalyst Temperature Sensor Circuit High
What to do
Nothing to feel, and nothing mechanically wrong. If the front of the car has been apart for any reason — accident repair, a new radiator, a condenser, even a bumper — mention it, because this sensor's connector is disturbed by all of those and is easily left unplugged. That is a free fix and the first thing to check.
What this code means
The ozone catalyst temperature circuit reads above its valid range — an open circuit, a disconnected connector, or a short to supply.
An open circuit is the usual finding, and front-end accident damage is a cause worth naming explicitly: anything that has required the front bumper, radiator or condenser to come out has had this connector apart, and it is a small plug in a crowded area that is easy to leave unmated. A code appearing after front-end work is that until shown otherwise.
No driveability consequence; the loss is the emissions monitor.
Likely causes
Start here
- Disconnected sensor connector · easy
- Open circuit in sensor wiring · moderate
- Faulty ozone reduction catalyst temperature sensor · moderate
Less common
- Physical damage from road debris · moderate
- Wiring shorted to voltage · moderate
Symptoms
Components involved
Information, not instruction
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Have anything you intend to act on checked by a trained person against the manufacturer's own procedure for your vehicle. Nothing here replaces that procedure.
Community experience
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