Engine Controls - Tests W/Codes - V6: Introduction

If no faults were found while performing steps in articles listed below, proceed with self-diagnostics.

BASIC TESTING - V6 Pickup
BASIC TESTING - V6 4Runner

If no Diagnostic Trouble Codes (DTC) are present after entering self-diagnostics, proceed to steps in articles listed below for diagnosis by symptom (i.e., ROUGH IDLE, NO START, etc.).

TESTS W/O CODES Pickup
TESTS W/O CODES 4Runner

NOTE: Diagnostic Trouble Codes (DTC) will be referred to as trouble codes in this article.