While driving and approaching intersection engine dies

When coming to a stop the engine dies and will not start. After a while it starts again goes for 500 mtrs or sometime 5 to 10 km no problem then does same thing again. Car mechanic has changed throttle body part which he thinks problem but problem not solved. Previously I took to another mechanic he scanned it and says TCM Error but I forgot to note it down may be P001 and P002 if it makes sense in error code terms. It appeared on screen TCM (Transmission Control Module) Fault/2 but it would not clear even battery terminal removed reset through scanning device please help if anyone have solution. There was no engine light showing up prior to first scan. Now engine light comes on after changing throttle body but problem remained same.