Tests W/Codes: Introduction

If no faults were found while performing trouble shooting in the BASIC TESTING article, proceed with ENTERING DIAGNOSTICS-PFI or ENTERING DIAGNOSTICS-TBI . If no fault codes or only pass codes are present, perform trouble shooting procedures 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.