Engine Controls - Tests W/Codes: Introduction
If no faults were found while performing the test procedures in the BASIC TESTING article, proceed with ENTERING SELF-DIAGNOSTICS in this article. If no fault codes or only pass codes are present, proceed to the TESTS W/O CODES article for diagnosis by symptom (i.e. ROUGH IDLE, NO START, etc.).
NOTE:
All voltage tests should be performed with a Digital Volt-Ohmmeter (DVOM) with a minimum 10-megohm input impedance, unless specifically stated different in testing procedures.