![]() On OBD2 systems up to the introduction of Controller Area Network (CAN) electrical systems, there are two code identification tags for each line of data. Only then can you determine whether or not a particular Mode $06 test value is good, bad or somewhere in the middle. You also need a reference chart from the vehicle manufacturer that identifies what component or system test each line of code refers to, and what the acceptable range of values are for that particular test. This requires some math and conversion factors, or scantool software that can do the translation for you. The “$” symbol means the data is in hex code, not ordinary decimal numbers.įact that Mode $06 data is in hex code means it has to be converted into familiar decimal values for us to understand it. It is tabulated in hexadecimal code (a base 16 number system that uses digits 0 to 9 plus letters A through F), which is the computer language that the PCM uses to manage things. Mode $06 data is information the OBD2 system tracks and compiles on “noncontinuous” monitors.
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