P2568 OBD-II Trouble Code: Direct O-Zone Reduction Catalyst Temperature Sensor Circuit Range/Performance

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Cost of diagnosing the P2568 code

P2568 is a diagnostic trouble code (DTC) for "Direct O-Zone Reduction Catalyst Temperature Sensor Circuit Range/Performance". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic for $70.00. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $30.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.

Cars Estimate Credit towards follow-up repair Earliest Availability
Ford$70.00$30.00
Toyota$70.00$30.00
BMW$70.00$30.00
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Check Engine Light

P2568 code definition

Direct O-zone Reduction Catalyst Temperature Sensor Circuit Range/Performance

What the P2568 code means

P2568 is an OBD-II generic code that the engine control module (ECM) has detected the engine o-zone reduction catalyst temperature sensor to be out of specification range or performance has gone out of specification parameters.

What causes the P2568 code?

  • The ECM monitors the catalyst temperature with a sensor mounted in the exhaust after the catalyst.
  • The catalyst temperature sensor is inoperative or is slow in response to exhaust temperature.
  • The exhaust may have air leaks into the exhaust before the sensor causing incorrect operation.

What are the symptoms of the P2568 code?

  • The Check Engine Light will be illuminated and the code is set in ECM memory.
  • The engine may have an exhaust leak.
  • The sensor may not cause any drive complaints.

How does a mechanic diagnose the P2568 code?

  • Scans codes and documents the freeze frame data in order to verify the problem

  • Clears the engine codes and road tests the vehicle to verify concern comes back

  • Monitors the sensor PID on a scanner to see if sensor indicates the proper temperature of the exhaust as per specifications

  • Checks the sensor for damage to the sensor or wiring

Common mistakes when diagnosing the P2568 code?

  • Failing to repair any exhaust leaks or damage causing the sensor performance to be out of specifications

  • Failing to check the wiring harness and connection to the sensor for problems before replacing the sensor or catalyst

How serious is the P2568 code?

  • The Check Engine Light being on causes the vehicle to fail emission testing.

  • The sensor system for the catalyst temperature is important to keep from overheating the catalyst and causing damage to the catalyst.

What repairs can fix the P2568 code?

  • Replacing the o-zone reduction catalyst temperature sensor
  • Replacing the catalyst if damaged from over temperature conditions
  • Repairing the wiring shorted or open to the sensor or connector

Additional comments for consideration regarding the P2568 code

Code P2568 is triggered when the catalyst temperature sensor is out of specifications and can cause the catalyst to be overheated and damaged. When repairing the temperature sensor, check the catalyst for damage from overheating by looking at the catalyst housing for large discoloration or heat damage.

Need help with a P2568 code?

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.

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Kenneth

17 years of experience
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Kenneth
17 years of experience
Have to say, Kenneth is everything mechanics need to strive for. He seemed extremely knowledgeable on all things car-related, is on-time and what I found the most important, is that he gave detailed recommendations on what steps to take first. I have an old, high-mileage, Navigator with multiple problems. In the interest of saving money and not just throwing parts at it hoping it'll run fine afterwards, he gave specific recommendations on what test to get first to make sure the internal engine is fine before tackling everything else wrong with the car. He schooled me on some car terminology which was helpful as well.
2007 LINCOLN NAVIGATOR - CHECK ENGINE LIGHT IS ON - LOS ANGELES, CALIFORNIA

Stefan

14 years of experience
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Stefan
14 years of experience
Very thorough in explaining the problem to us
2005 VOLVO XC90 - CHECK ENGINE LIGHT IS ON - WALNUT CREEK, CALIFORNIA

Kenneth

17 years of experience
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Kenneth
17 years of experience
Great service provided!
2011 BMW 550I - CHECK ENGINE LIGHT IS ON - LONG BEACH, CALIFORNIA

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20 years of experience
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Rusty
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Rusty was very helpful and professional. Even though there was bad news, he gave my husband and I helpful tips on how to resolve the issue. We would love for Rusty to come and assist us on future car services.
2009 BMW X3 - CHECK ENGINE LIGHT IS ON INSPECTION - ARLINGTON, TEXAS

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