Diagnosing electronic contol faults in modern automatic transmissions can be a bit daunting. With the different bus systems in today's vehicle it is important that the correct diagnostic equipment is used. At Beds Auto Trans Main Dealer equipment is used to help us diagnosing faults confidently and correctly. Ocilloscopes are used to maintain a libary of traces that we can share with the Vbdaq system together with picking up faults such as interferance we commonly find when testing vehcles with odd faults.We never assume that the fault stored wirthin the transmission ecu is correct untill verified. All Batteries and charging systems are check as a matter of coarse. We also carry out the reprogramming of electronic control units, bypassing of immobilizers on Toyota,Fiat,Peugeot/Citroen,VAG,Rover,Renault,Lexus, BMW,Honda,Vauxhall and many more , and returning Engine control / transponder immobilisers to a virgin state for re-use and not forgetting immobilizer code reading and the reprogramming of all keys.