The method used to connect the VCI connector to a vehicle’s DLC depends on the vehicle’s configuration as follows:ġ.A vehicle equipped with an OBD II management system supplies both communication and 12V power through a standardized DLC.Ģ.A vehicle not equipped with an OBD II management system supplies communication through a DLC connection, and in some cases supplies 12V If the DLC cannot be found, refer to the vehicle’s service manual. For some Asian and European vehicles, the DLC is located behind the ashtray and the ashtray must be removed to access the connector. If DLC is not located under dashboard, a label should be there telling location. 4-7 for DLC location of different vehicles. The DLC is usually located 12 inches from the center of the instrument panel, under or around the driver’s side for most vehicles. The DLC (Data Link Connector) is typically a standard 16-pin connector where diagnostic tools interface with a vehicle’s on-board control modules. (For vehicles with non-OBD II diagnostic socket, a non-16 pin connector is required.) If X-431 Diagun IV is testing vehicles equipped with universal OBD II diagnostic socket, please use the included VCI connector.

Tap the desired system (take “ECM” for example) to jump to the test function page.Ģ.Vehicle battery voltage range should be 9-14 Volts.ģ.Throttle should be in a closed position. Swipe the screen from the bottom to view the vehicle system on the next page. Tap “System Selection”, the screen displays as follows: This option allows you manually select the test system and function step by step. Scanning is complete, the screen will display the result. This option allows you to quickly scan which systems are installed on the vehicle.Tap “System Scan”, the system start scanning the systems. Tap “Yes” to clear all the diagnostic trouble codes. Tap “Clear DTC”, a confirmation dialog box appears. This function lets you clear the existing diagnostic trouble codes in health report. Tap> to view the detailed DTC information of the current system. The tested systems with faults are listed under the Fault tab and the number ofĭTC is displayed in red next to the system. The systems that have been found OK are shown in black under the Normal tab. This function allows you to view the health report in details. It enables you to quickly access all the electronic control units of the vehicle and generate a detailed report about This function varies from vehicle to vehicle.

Launch X431 Diagun Software Update