All vehicles from the mid-1970s to the commenced lifetime custom a central machine for engine management. This management is used to control all functions of the engine as well as making the vehicle environmentally cleaner through the reduction of harmful emissions due to unburned fuel expulsion from the exhaust. The computer has a series of sensors that provide it with all the pertinent information necessary for proper operation of the engine (engine management). It has also a series of actuators to operate the engine in accordance to the information supplied by the sensors. The computer has a port called a DLC connector from which the computer can be accessed.2. Turn the key on to the "run" position and press the "read" button on the scanner. Write down the codes so that they can be looked up in the code sheet. To progress to the next code, simply depress the down arrow on the scanner.
Instructions
1. Plug the scanner's connector into the corresponding connector located under the driver's side dash. It is made to be easily accessible and obvious as to the shape--it is the same as the scanner plug.
This is located under the driver's side of the dash. The DLC connector is also called OBDII. When asked, the computer displays the faults with a series of number to indicate the specific failure. The code sheet has the numbers and translation.
3. Look the codes up on the code sheet. Look for the number and the corresponding description of the fault that the number indicates. All the codes will be proceeded by a letter in most all cases is a "P" or a "U" followed by four numbers--for example, P1350.
4. Call the auto parts store and get a price on the part needed. Now you are much better prepared when you take it in to be serviced and can save money by having done the diagnosis, should you decide not to replace the part yourself. In many cases it is not difficult to replace the part yourself.
