What it is

• Product type: A software patch or “hot” update targeted at Autocom diagnostic interfaces (commonly the Autocom CDP/C4 hardware family and software suite).
• Versioning: The label “202111 C4B” indicates a release (November 2021) that targets C4-series interfaces or adds support aligned with C4B nomenclature.
• Purpose: Adds vehicle protocols, modules, manufacturer-specific functions, or unlocks advanced features (e.g., programming, extended ECU access) that may not be present in out-of-the-box or basic licensed builds.

Injector coding and DPF (Diesel Particulate Filter) regeneration. delphi autocom 202111 c4b high quality hot

Real 9241A Chips: Premium "C4B" or "High Quality" versions often feature genuine 9241A or GEZ chips and high-quality relays (like NEC or Omron), which prevent communication errors with specific vehicle modules. Installation and Stability Report This guide covers the installation and setup for