Engine Controls - Self-Diagnostics: Introduction

NOTE: For self-diagnostic testing procedures on SLX, refer to Trooper in Isuzu SELF-DIAGNOSTICS article.

Perform all steps inBASIC DIAGNOSTIC PROCEDURES article. If no faults were found while performing BASIC DIAGNOSTIC PROCEDURES, proceed with self-diagnostics. If no Diagnostic Trouble Codes (DTCs) are present after entering self-diagnostics, proceed to TROUBLE SHOOTING - NO CODES article for diagnosis by symptom (i.e., ROUGH IDLE, NO START, etc.).