SECTION 3 USING THE SCAN TOOL Preparation ● DO NOT CONNECT THE SCAN TOOL TO THE VEHICLE WHILE THE VEHICLE IS ON. Doing so could cause damage to the scan tool or vehicle's electronic components. ● Retrieving the DTCs is only one part of on-board diagnostic. NEVER REPLACE THE PARTS SOLELY BASED ON THE DIAGNOSTIC RESULTS. Always refer to the vehicle's service manual for detailed testing instructions. ● ALWAYS KEEP THE SAFETY PRECAUTIONS IN MIND 1. Turn the ignition off or to the "LOCK" position (0). (See Figure 3.1.1) when working on a vehicle. Figure 3.1.1 2. Locate the vehicle's DLC ● Most of the vehicle's DLCs are located in one of the positions labeled in Figure 3.1.2.
Some DLCs have a plastic cover that needs to be removed before connecting and some are hidden nearby the fuse panel. If you encounter a problem locating the DLC, please