USER MANUAL
For Multiscan
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B. DTC Erase (Clear fault code )
1. Pulse signa l type
a. Pulse signal type does not support bi-di recti onal seri al com muni cation,
therefore, a scanner is unable to send a com mand to the control m odul e
to erase the DTC informati on from m em ory.
These old cars require you to rem ove battery term inal to clean up
diagnosti c informati on from control m odule memory.
Removing the battery term inal will get ri d of all informati on contained i n
the car stereo and other electroni c devi ces. And it m ay not effecti vel y
erase the faul t codes i n some cars. R efer to the original repair m anual
for further informati on.
Check if DTC inform ation is properly rem oved by reading the troubl e
code agai n after erasi ng the code.
2. Serial communicatio n type
a. Multiscan sends a command to the control module to erase DTC
informati on stored i n memory, and the control modul e repl ies thereupon.
b. Check if D TC i nformation is properly rem oved by reading the troubl e
code again after erasing the code
