Begin the system diagnosis with
Diagnostic System Check - Vehicle. The Diagnostic System
Check - Vehicle will provide the following information:
• | The identification of the control modules which command the system. |
• | The ability of the control modules to communicate through the serial data
circuit. |
• | The identification of any stored DTCs and the codes status. |
The use of the Diagnostic System Check - Vehicle will identify the correct
procedure for diagnosing the system and where the procedure is located.
Visual/Physical Inspection
• | Inspect the easily accessible or visible system components for obvious
damage or conditions which could cause the symptom. |
Intermittent
Faulty electrical connections or wiring may be the cause of intermittent conditions.
Refer to
Testing for Intermittent Conditions and Poor Connections.
Symptom List
Refer to a symptom diagnostic procedure from the following list in order to
diagnose the symptom:
• | Item must have some data. |
• | Item must have some data. |