How do I interpret the DTC Codes P1741, P1742 and P 1710 if the reader shows "absent". There is no code? There was a code? The codes are current? Tool is running the latest Diagzone Ferrari software version 10.95. F1 system works very well. No driving issues noted. Did have some issues several months ago. Resolved. 2001 360 with latest TCU installed. Thank you for the help.