DTC error codes

DTC error codes also known as Diagnostic trouble codes point to a specific problem that has set off an error in the computer system of the car or engine control unit (ECU). The DTC’s are a series of numbers and letters that are displayed on the auto car’s digital information display. The codes indicate what the problem is, with respect to the auto car’s basic systems.

Auto cars are very complex machines. They have many sensors, computer systems, and electrical components. Auto car errors can happen for a number of reasons and often the reason is difficult to establish. Below are some of the most common auto car errors:

The ECU is able to detect a number of different errors in an auto car. It can monitor the oil pressure, temperature, and fuel levels in addition to issues such as ignition, throttle, and injector performance. Each type of error will set off a different series of numbers and letters on an auto car display screen.

 

DTC error codes that can set off in Auto-cars

P0335 – Idle Control System Malfunction – P0335 is the code that is given when the idle control system on an auto car fails to start operating properly. It will be displayed on the information display screen of the car.

P0350 – Catalyst System Efficiency Below Threshold (Cat C) – P0350 is another code, which is a component of Cat A, Cat B and Cat C problems. It is an auto car error that is given when the catalytic converter efficiency levels are too low. This code will be displayed on one of the digital information displays in a car dashboard.

P0360 – Catalytic Converter Efficiency Below Threshold (Cat A) – Another auto car error code that is displayed on a digital information display is P0360. It displays when there is a problem with the efficiency levels of the catalytic converter in an auto car engine.

P0361 – Catalytic Converter Efficiency Below Threshold (Cat B) – This auto car error code is also displayed when there are problems with the catalytic converter efficiency levels. It will be shown on one of the display screens on the dashboard or instrument panel of an auto car.

P0380 – Engine Control Module Power Malfunction (Cat D) – Cat D engine problems are usually due to a problem with the engine control module and its electrical components. This error will be displayed on the digital information display of a car.

P0390 – Catalytic Converter Efficiency Below Threshold (Cat C) – This code is also displayed when there are problems with the catalytic converter efficiency levels. It will be shown on one of the display screens on the dashboard or instrument panel of an auto car.

P0395 – Catalytic Converter Efficiency Below Threshold (Cat D) – This code is also displayed when there are problems with the catalytic converter efficiency levels. It will be shown on one of the display screens on the dashboard or instrument panel of an auto car.

P0400 – Air/Fuel Ratio Sensor Malfunction – P0400 is the code that is given when there is a fault with a particular sensor in an auto car’s air/fuel ratio control system. This code can be displayed on one of the digital information displays in a car dashboard.

DTC error codes in cars

P0410 – Catalytic Converter Efficiency Below Threshold (Cat A) – Another auto car error code that is displayed on a digital information display is P0410. It displays when there is a problem with the efficiency levels of the catalytic converter in an auto car engine.

P0420 – Catalytic Converter Efficiency Below Threshold (Cat B) – This code is also displayed when there are problems with the catalytic converter efficiency levels. It will be shown on one of the display screens on the dashboard or instrument panel of an auto car.

P0430 – Air/Fuel Ratio Sensor Heater Circuit (Cat A) – When an auto car’s oxygen sensor heater is not functioning properly, this error code will appear on one of the digital information display screens in your vehicle.

P0440 – Air/Fuel Ratio Sensor Heater Circuit (Cat B) – This code will display when the oxygen sensor heater in a car is not working properly.

P0441 – Air/Fuel Ratio Sensor Control Circuit (Cat A) – This error code displays when there is an issue with the efficiency or performance of the auto car’s oxygen sensor control unit. It indicates that the customer should take their auto car to a local repair shop as soon as possible.

P0442 – Air/Fuel Ratio Sensor Heater Circuit (Cat A) – This code will appear when the oxygen sensor heater in a car is not working properly.

P0443 – Secondary Air Injection System Insufficient Flow Detected – This error code indicates that there is an issue with the auto car’s secondary air injection system. It can also be caused by a vacuum leak and there is a big chance that the engine may start stalling out at times.

 

Conclusion

DTC Error codes in auto cars are used to troubleshoot common problems in your car. This site shows you the codes and what they mean. You will also learn how to work on your car yourself. If you are good at reading engine codes and have an idea about what they mean, then you should be a great auto car mechanic.

If a car starts giving an error code, it is important that you take it to the nearest dealer or repair service shop as soon as possible to avoid long delays in order for your auto car problem to be solved.

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