Sounds like you are trying to track down the Aventador S service and wiring manuals, plus diagnostic/calibration software, but can't find a solid source. You can grab a full LP740-4 workshop
service manual & wiring manual, and web shops are offering it via email or download for around $500-690 US, depending on format. A wise take is to pair that with an official OEM diagnostic tester or calibration tool, which many sellers also bundle in the same catalog.