Vehicle Check/Preparation

Vehicle Check/Preparation

Before using the scan tool to perform any test, refer to the important Safety Notice located at Introduction and the necessary visual checks listed below. Introduction

Visual Checks

^ Inspect the air cleaner and inlet duct.
^ Check all engine vacuum hoses for damage, leaks, cracks, kinks and proper routing.
^ Check Electronic Engine Control (EEC) system wiring harness for proper connections, bent or broken pins, corrosion, loose wires and proper routing.
^ Check the Powertrain Control Module (PCM), sensors, and actuators for physical damage.
^ Check the engine coolant for proper level and mixture.
^ Check the transmission fluid level and quality.
^ Make all necessary repairs before continuing with Quick Test.

Vehicle Preparation

^ Perform ALL safety steps required to start and run vehicle tests. Apply parking brake, place shift lever firmly into PARK position (NEUTRAL on manual transmission) and block drive wheels.
^ Turn off ALL electrical loads: radios, lamps, A/C, blower, and fans.
^ Start engine and bring up to normal operating temperature before running Quick Test.