Self-Diagnostic System: Notes

For information on how to retrieve and clear DTCs, see scan tool instruction manual and SELF-DIAGNOSTIC SYSTEM in SELF-DIAGNOSTICS - GASOLINE or SELF-DIAGNOSTIC SYSTEM in SELF-DIAGNOSTICS - DIESEL article in ENGINE PERFORMANCE.

If any communication related DTCs are present, go to DIAGNOSTIC TROUBLE CODE DEFINITIONS  table. If no DTCs are present, go to SYSTEM TESTS  .