A car code reader is one of the most simple diagnostic tools that you’ll find the car. These devices are designed to interface with your computer and report the vehicle fault codes is not a type of way. Cars and trucks built before 1996 require you to read OBD-I-specific proprietary code, and the new vehicles use the OBD-II code scanner universal. This type of vehicle code reader is usually inexpensive, and some shops and parts stores will even read your code for free.
How can a car code reader work?
computer control started appearing on cars in the late 1970s and early 1980s, and these systems are rapidly increasing in complexity. Even computer control early on included basic “on board diagnostics” function, and the first, OEM-specific systems are referred to as OBD-I. In 1995, until 1996, automobile production in the world started switching to the OBD-II standard universal, which has been used ever since.
Both OBD-I and OBD-II systems work in a similar, in that they track a variety of inputs and outputs sensor. If the system determines that anything is out of spec, it poses an “error code” that can be used in diagnostic procedures. Each code corresponds to a specific error, and there are many different types of code (ie, hardware, software) which represent issues both continuous and continuously.
When an error code is set, a special indicator on the control panel lights up typical.
This is the “indicator incident” and basically it just means that you can hook up a car code reader to see what the problem is. Of course, some stocks will not cause this light to turn on.
Each OBD systems have some sort of connection can be used to retrieve the code. In the OBD-I, sometimes can use this connection to test the code without a car code reader.
For example, it can serve as a bridge connecting ALDL GM and then check the flashing light engine testing to determine the number has been set. In a similar fashion, the code can be read from the OBD-I vehicles Chrysler by turning the ignition key on and off in a specific pattern.
In the other OBD-I system and all OBD-II trouble code is read by plugging into a car code reader OBD port. This allows readers the code to communicate with the computer of the vehicle, pull the code, and sometimes make some other basic functions.
Using a vehicle Code Reader
To use a car code reader, it must be plugged into an OBD system. Each OBD-I has its own connection, which can be placed in a variety of different locations. These connectors are usually found under the hood in the vicinity of the fuse box, but they can be located under the dash or elsewhere. In vehicles built after 1996, the OBD-II connector is usually located under the dash near the steering column. In rare cases, it can be placed behind a panel in the dash, or even after an ashtray or other compartment.
After the OBD socket has been placed and connected, vehicle code reader will communicate with the vehicle’s computer.
simply code reader can actually draw power through an OBD-II connector, Reader plug means in practice can power it up and turn it on as well.
At that point, you’ll usually be able to: Read and clear codes
View basic parameter ID
Check and possibly reset the screen ready
specific options vary from one other vehicle code reader, but at a minimum you should be able to read and clear codes. Of course, it’s a good idea to avoid breaking the code until you have written them down, and you can watch them on an error code chart.
Car Code Reader Limitations
Although car code reader is huge in give you a jumping off point for your diagnostic process, the only trouble code can be any number of different causes. That is why the professional diagnostic techniques typically use more expensive scan tool comes with extensive knowledge base and diagnostic procedures. If you are not the kind of tools at your disposal, then you can test basic error codes and troubleshooting information online.
Vehicle Code readers Vs ELM327
ELM327 scanner tool as an alternative to the basic vehicle code reader. These devices use the technology to communicate ELM327 for OBD-II systems of your car, but they do not have any integrated software, screen, or anything else that a code reader tradition. Instead, these devices are designed to provide an interface between a tablet, smartphone, laptop or other device, and computer of your car.
Kết quả (Tiếng Anh) 3:
A pier car is one of the most simple diagnostic tool, you will find the car. The design method of computer equipment communication and report the error code is not this type of cars. Cars and trucks were established in 1996 to ask me, the specific code you read OBD’s proprietary vehicle code using the new machine to read OBD – II is common. This car does not read the code is usually expensive, and some shops and stores even read your free code.
This is a code to read the car?
The computer control of the car and began to appear in 1970 and 1980 at the end of the system, and a rapid increase in complexity, even in early computer control, including basic “on board diagnosis” function, specific to the OBD name and the first OEM production system. In 1995 to 1996, in the world car production started into the standard general OBD II, which has been used.
The system two equipment OBD – OBD – I and II in the city, they followed a series of elements in the sensor input and output. If the system determines what is the general diagnosis, he established a “error codes” can be used in the process. Each code corresponds to a specific error, there are many different types of code (hard, soft) on behalf of the two continuous and discontinuous.
When an error code is created for a special index, the typical glow panel.
This is the “fault indicator”, basically, it just means that you can hang in the car to read the code to see what the problem is. Of course, some stocks will not cause the light to enable.
Each OBD system connection can be used to get the code. OBD in the system, sometimes I can use the connection to check the code does not need to read the code.
For example, it can be connected to the bridge, and then check the aldl general flashing light engine checks to confirm the password is set in a fashion, the same code can be read from the OBD – Chrysler car movement organization and closed in a specific shape of the electronic lock.
System OBD I and all other systems OBD – II, the code is inserted into a read by reading the code OBD door car. This allows you to read the code and computer to communicate with the car, Mara, and sometimes do some other basic functions.
Car using a code reader
Using a read dock car, it is a system for OBD insertion. OBD – each system has its own connection and can be set in a range of different places. These connections are usually found in the vicinity of the fuse box under the hood, but they can lie on the brick level or in other parts of the car. In 1996 after the completion of the OBD connection – II usually lie in the dash in the rare case of broken column than driving. It can be set in the panel, or even in an ashtray or other modules.
When the socket connection is set and the OBD reads, the car and the computer.
Read the code is very simple, really can extract energy through a connection OBD – II, which means that in reality, the reader can drive it, open it is good:
Obviously, reading and code
The basic parameters of my ID card
Check, you can reset the desktop ready
All options vary from a specific code to a different reader of the car, but the minimum amount of friends should be able to read and code clear. Of course, it’s a good idea to avoid damaging your code until you write it down, and now you can see them in the chart’s error code.
Code reader restriction vehicle
While the human readable code is very large, the only trouble friends in the car to give you a close point of the diagnostic program code can be any number of different reasons. This is why professional diagnostic techniques usually use scanning tools, ancillary facilities and more expensive if you sagacity and diagnostic procedures.