QuestionQUESTION: i have a problem with my trans, i think its in limp mode or fail safe so i discont battery and now i have no radio and no codes. i would like to locate exactly where the tcm is on a 2000 a6 4.2 quattro and some how get the codes so i dont have to go to a dealer. can you assist?
ANSWER: The TCM does not have a code, only the radio does. If your trans is in limp home mode, it is doing this for a reason, and I would strongly suggest you let an expert look at it. With reference to a radio code, there are forums where you may be able to obain these codes, but a dealerhip will also be able to provide this; however they may charge for this service. The codes are normally in the radio manual, so it might be worth looking for the code there. The TCM is normally under the lower dash panel; follow the antenna wires from the radio, they will lead you to the TCM. Let me know, Jan
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QUESTION: thank you, i am going to take the car to the dealer to reset the radio code, its only 55$ for that service.
i aware there is no code for the TCM but i want to inspect it to see if its wet. water some how gets to the TCM on these cars .but they say its located under the carpet under the passanger side seat, is this correct? i do not want to get robbed , i rather know whats up before i take to a mechanic. i can get a TCM for 300$. dealer will hammer me for 2k for the same thing.so for now i want to know if you know the exact location of the tcm before i tear the car apart and hunt for this unit. thank you anthony ventra
AnswerSorry I thought you were referring to the tuner control module, which is a radio/nav accessory. With ref. to the transmission control module; In my manual for a 200A4 with 2.7 V6 engine it states it is under the carpet on the passenger side in a black box; as you suggested. I would imagine it is the same in yours. Let me know, Jan
