Using Diagnostic Trouble Code (DTC) Tables

When diagnosing this powertrain, you will almost certainly need to use the diagnostic procedures in this or other powertrain sections. The diagnostic procedures are mostly in the form of tables. At the beginning (formerly known as the facing page) of each DTC will be a circuit diagram, or a reference to a circuit diagram, a Circuit Description and notes about the condition or DTC diagnosed in the table. Reading the diagnostic support information will help you understand the system being tested, the components involved in the testing, how the PCM tests the system (enabling conditions), how the PCM determines that the diagnostic has failed (Conditions For Setting The DTC), and what the table is trying to accomplish. Below are explanations of the diagnostic support information and tables for DTCs.