Programming modules Archives - Transmission Digest
Transmission programming modules: When to reprogram and when to replace

Programming modules have been an essential aspect of the complete repair and service experience (Figure 1) within the automotive industry for quite some time now. Not providing this service shortchanges both the shop and the customer; yes, the repair has been performed, but the vehicle is still not working as well as it could be.

Technically Speaking June
Programming: A Blessing or a Curse

(Re)programming and tuning do share some similarities but are very different and shouldn’t be mixed up. As told in the previous chapter, the program contains a lot of info including the mapping. This mapping is basically the way the car drives “transmission-wise.” This mapping contains stuff like shift speeds, TCC strategy and speeds, shift firmness and pressures.

Programming: A Blessing or a Curse

To answer the question in the headline, we need to look at the programming of modules. Not the actual program, but the foundation on which it is based on.

To Flash or Not to Flash

At this point, everyone is familiar with the fact that most 1996 and later GM vehicles are equipped with computers that must be programmed (flashed) in order for the vehicle to operate properly.

What some technicians may not be familiar with is the fact that earlier GM vehicles were equipped with PCMs that are also flashable. As a matter of fact, you could have a GM vehicle as early as the 1993 model year that is equipped with a flashable PCM. This is mostly because GM was the pioneer in developing the EEPROM and the programmable process.