When you list the codes , you must mention which PIN they came from...

You want DM/PIN 8/ PIN 14 to see what code coupling is present.

If one has a CE lamp , that means the DM has codes and that the Emmissions module [ N/59] has detected a fault that will affect emmissions...but many of those codes actually come to the N/59 from the other modules , and those will be more specific. That is the reason for the tool. If a code on PIN 8 does not effect the emmissions mandate , then it does not talk to N/59 and a CE does not appear. But that does not mean there is no fault..it just is not an emmissions RELATED fault. Only DM registers those faults and only DM lights CE lamp..........hope that helps explain the system.
So, if we see a DM code and then we see a different code from one of the engine Mnagement modules [ 8/14 ], thay are said to be coupled and many are commonly coupled, helping us in an accurate system failure or remedy.

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A Dalton