Chart #2 Scan Tool Will Not Communicate

Chart #2 Scan Tool Will Not Communicate With Class 2 Serial Data Line (Part 1 Of 2):

Chart #2 Scan Tool Will Not Communicate With Class 2 Serial Data Line (Part 2 Of 2):

Chart #3 Scan Tool Will Not Communicate With Theft Deterrent Serial Data Line (Part 1 Of 2):

Chart #3 Scan Tool Will Not Communicate With Theft Deterrent Serial Data Line (Part 2 Of 2):