Please help!! EGS module confusion.
Hello everyone i have been reading this forum quite a lot, great help and a lot of good info, however this is my first post. i have a 328i 2000. My problem is as follows: sometime in the past like 1 year ago my transmission light and check engine light came on, and transmition went into fail safe mode. Then i disconected the battery for like 10 min and transmission light went off, however the check engine stayed on. the car drove fine. i let it be for a while until i borrowed a GT1 /inpa software from my friend ... so here is the thing there are no codes stored in DME but when i try to access the EGS through GT1 it says that there is a problem in data transmission, the module does not respond or is not conected, when i tried the same thing with inpa it can conect to the module and read all the values for the transmission, activate/deactivate solenoids everything works, but when i try to access the fault code memory on EGS it says that module does not respond or not connected. So i figured it's defective. Just in case it would work and the problem is with software i reprogramed it using GT1. but still could not read or delete the codes. I went on ebay, bought a used one (same part number etc.) I programmed the new EGS unit following the instructions and when i started the car went into fail safe mode right away, when i read the codes through the GT1 it said internal module error replace the unit, so i;m thinking ok if i can read the codes on this one but not my old one it should be the problem with the module and they must have sent me a defective one, so i contact the seller say what the problem is and he agrees to send me another one, it arrived today and same problem transmition in fail safe the check engine light however is going off when i tried to erase the codes, but the same thing as the last one, GT1 says module is defective , action : replace the module. can it be that all three units are defective ?? what else can it be ? please help