Inspection Flow By DTC System

How to read and use each article is described below.

• Troubleshooting is shown in order of DTC, and separated by systems and symptoms in order to make it easier to diagnose malfunctions and investigate the cause.
• Troubleshooting procedures are described in articles with the following headings: "DTC", "Circuit description", "Detecting conditions", "Circuit figure", and "Inspection steps".

Fig 1: Engine Control Computer Circuit Diagram (Example)

Courtesy of SUBARU OF AMERICA, INC.