Start Diagnostics; Health Report (Quick Test) - Launch Diagun v X-431 Manual

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5 Start Diagnostics

Follow the steps mentioned below to start a new diagnostic session.
Tap "Diagnose", and then tap a corresponding diagnostic software logo.
Take Demo as an example to demonstrate how to diagnose a vehicle.
1). Tap the "DEMO", a screen similar to the following appears:
2). Tap "Demo" to ignore the connection and jump to the test item selection
screen (*Note: No connection is required for DEMO program).

5.1 Health Report (Quick Test)

This function varies from vehicle to vehicle. It enables you to quickly access all
the electronic control units of the vehicle and generate a detailed report about
vehicle health.
*Note: Diagnostic Trouble Codes or Fault Codes can be used to identify which engine
systems or components that are malfunctioning. Never replace a part based only on the
DTC definition. Retrieving and using DTCs for troubleshooting vehicle operation is
only one part of an overall diagnostic strategy. Follow testing procedures (in vehicle's
Fig. 5-1
Fig. 5-2
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Start Diagnostics