Quite frankly I don't understand what you're asking. That might be the reason no one has answered you.
This...but I will try my best.
I used EC as a CLEP source. They issue grades for their tests not pass/fail, if that is what you are asking.
I would check with EC, or the local university that is using EC as a source; I'm sure they will know, just in case my experience is outdated-I CLEP'ed two science courses to get into my BSN program, and got an A in the one course and a B in the other.
Some of the Pass/Fail will be a C on your transcript, but I don't think it is figured into your GPA, others are figured on your score for A,B,C. Excelsior College | National exams for credit This is the link for other credit by exams that EC accepts (Uexcel, CLEP and Dsst). Sociology can be taken through CLEP or Uexcel - (easy! take psychology and life span psych right after cause they run together.)
My CLEPs (Introductory Sociology and Human Growth & Development) showed as pass/fail on my transcript, but it also included my total score achieved on the CLEP exam (whatever out of 80 ... I think I got a 72 out of 80 on both).