Engine Controls - Introduction (Hybrid): Introduction: Preface: Notes

This article provides a step-by-step approach for diagnosing driveability, emission, powertrain and hybrid electric control system symptoms. Before beginning diagnosis, it may be helpful to reference any Technical Service Bulletins (TSBs) or On-line Automotive Service Information System (OASIS) information when this is available. The TSB/OASIS information is available on the Professional Technician Society (PTS) or Motorcraft® website.

This service information is used in conjunction with the Wiring Diagrams articles. The service information is used to provide additional diagnostics when directed by this article. The article is also used for component removal and installation information. Refer to the Wiring Diagrams for vehicle-specific wiring information and component, connector and splice location.

The following is a description of the information contained in each article.