Code P0455 PDF

A service bulletin that details diagnostic procedures for identifying and resolving issues related to the regeneration system in vehicles, specifically for a fault code indicating a severe leak. It includes step-by-step instructions for performing vacuum and pressure tests to detect leaks in the system. The document provides information on conditions for testing, checking the status, and the necessary steps after repairs are made. It also contains technical diagrams illustrating the relevant components of the vehicle’s evaporation control system.