Engine Controls - Tests W/Codes: Introduction: Notes
If no faults were found while performing BASIC DIAGNOSTIC PROCEDURES, proceed with self-diagnostics. If no Diagnostic Trouble Codes (DTC) are present after entering self-diagnostics, proceed to the TESTS W/O CODES article for diagnosis by symptom (i.e., ROUGH IDLE, NO START, etc.).
NOTE:
Diagnostic Trouble Codes (DTC) will be referred to as trouble codes in this article.