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LAUNCH X-431 V V4.0 User Manual
28
Fig. 5-14
The tested system with fault code appears in red and the system with OK
displays in black (normally).
On-screen Buttons:
Clear DTCs: Tap to clear the existing diagnostic trouble codes.
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 service manual), instructions and flowcharts to confirm the locations of the
problem.
Report: Tap to save it as a diagnostic report.
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