◼ Clear Trouble Code
It allows clearing current and historical trouble codes memory
in ECU, under the premise that all the troubles are eliminated.
Figure 4-10 Sample of Clear DTC
The trouble codes can’t be erased without eliminating all the
troubles, which will cause the diagnostic tool to always read
the trouble code because the code will always be saved in
ECU. Suggestion: users should better not clear trouble codes,
we need to record the trouble details after reading the code,
which is provided as a reference for maintenance. After