PCM Diagnostics Parameters: Case Learn Override, DTC Fault Type, Flash Security

This document is a single reference page titled "Diagnostics," apparently from a PCM (Powertrain Control Module) tuning or calibration software manual. It presents a two-column table describing diagnostic-related calibration parameters grouped under three headings: Case Learn, Fault Reporting, and Security. Under Case Learn, the "Case Learn Override" parameter (highlighted on the scan) is described as being used to enable learning when no other means are available. Under Fault Reporting, "DTC Fault Type" defines four values: 0 = 1 trip SES on / 3 trips SES off, 1 = 2 trips SES on / 3 trips SES off, 2 = Service On, and 3 = No Reporting; "DTC Fault Enabled" uses 0 = fault disabled and 1 = fault enabled. Under Security, "Ignore Flash Checksum" causes FLASH checksum errors to be ignored if set true, "Disable Flash Security" makes the PCM disable security when the value is set to 255, and "Flash Checksum" is the checksum for the PCM file. A reader learns what each of these diagnostic/tuning parameters controls, particularly how DTC reporting behavior and PCM flash security settings are configured. The page states no specific vehicle year, make, or model.