LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2004 >> Prius >> Repair and Diagnosis >> External Pages >> Different car >> Section 109 (Engine Control System Self Diagnostics) >> Introduction
October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

Section 109 (Engine Control System Self Diagnostics): Introduction

WARNING: This page is about a different car, the 2003 Toyota Prius. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: This article applies only to the gasoline engine used in this vehicle and does not apply to the hybrid vehicle control system which consists of A/C motor and high-voltage system. For diagnosis of the hybrid vehicle control system, consult authorized dealer.
WARNING: Read service precautions before proceeding with service procedure. See SERVICE PRECAUTIONS .
NOTE: Before performing testing procedures, check for any related Technical Service Bulletins (TSBs).

To properly diagnosis and repair this vehicle, follow TESTING PROCEDURE  under SELF-DIAGNOSTIC SYSTEM. If no Diagnostic Trouble Codes (DTC) are present and a no start condition exists, proceed to BASIC DIAGNOSTIC PROCEDURES - 4-CYL article. If no DTCs are present and a driveability condition exists, proceed to TROUBLESHOOTING - NO CODES article for diagnosis by symptom (i.e., ROUGH IDLE, ENGINE STALLS, etc.).

scientia non olet · About LEMON Manuals