Answer by  
                                                                                          kennethjgoodson (4903)
                                                            
                          
                          
                                                          The best way to reset the ecm on a Toyota is to get the OBD tester and reset all the codes.  It can only take a few minutes and it is easy but the OBD tester can cost you between ninety and three hundred dollars at Harbor Freight.  It is the easiest way.