The diagnostic trouble code P0000 stands for “No Diagnostic Trouble Codes Reported”, and is related to No fault and Fuel and air metering and auxiliary emission control.

DTC, or Diagnostic Trouble Code, P0000 is an OBD-II code that indicates that there is no error or fault detected in the vehicle’s computer. It is a unique trouble code among other DTC codes, as it is rarely seen. Other codes represent either generic or manufacturer-specific faults found in the vehicle and typically indicate something has gone wrong within its system.

However, this code only needs your attention when the car’s check engine light is on. In that case, the issue could be with your scanner, as it may not be scanning the right trouble code.

DTC P0000 essentially serves as a notification to the diagnostic technician that all systems checked out and showed normal results. It indicates no problems with any of the monitored Emission Control System components are detected. As this code represents normal operation, connecting a DTC reader tool usually brings up a blank reading on its screen.

What is a generic code on an OBD?

A generic code on an onboard diagnostics (OBD) system is a standardized code that indicates a specific problem detected in an automobile’s system.

You can then identify a generic code after the first letter when the second DTC character is a 0 instead of 1. This signifies that this error code is a standardized SAE (Society of Automotive Engineers) code. It could be due to various possibilities, such as multiple sensors in the vehicle’s control systems or malfunctioning emission control devices. If a 0 appears here, it is recommended you inspect different components of your vehicle to determine the root cause.

What causes the DTC code?

A DTC is caused by your vehicle’s onboard diagnostics system that alerts you whenever there’s a malfunction in your vehicle’s components. Your vehicle’s main computer, the Engine Control Units, or ECUs, then computes a fitting Diagnostics Trouble Code and displays it on the dashboard.

These codes provide a wealth of information regarding potential malfunctions, which can help diagnose an issue quickly and accurately. If you see unusual readings displayed on your vehicle’s dash, it’s a good idea to connect a scanner to get specific information about what has caused the DTC code to appear.

Is it OK to erase DTC codes?

If you have a DTC displaying on the vehicle’s dashboard, it’s usually a good idea to scan it and get to the bottom of the issue. Simply deleting it will not only leave the issue unresolved but open the doors for further troubles and damages to your vehicle’s components.

You can read about various different trouble codes in detail on our DTC page.