Principle of Code Cycle

How To Read Diagnostic Trouble Code:

PRINCIPLES OF CODE CYCLE
There are two types of diagnostic trouble codes (DTC)s that can be received.
- The first DTC numbers retrieved will be present failures. Present failures are faults that are still occurring.
* After all present failure diagnostic trouble codes are received, the separator code (10) will be received. The separator code separates present failure diagnostic trouble codes from stored failure diagnostic trouble codes.
- After the separator codes are received, the stored failure DTCs will be received. Stored failures are faults that occurred within 80 key cycles.