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The Powertrain control Module is located in the right front wheel well aft of the wheel. You remove it by removing all of the bolts that you can find that hold the thing in. I couldn't figure it out when I tried to remove mine, darn thing was stuck in there probably because of the previous battery leak.
where is the ecm on a 01 vette and how do you remove it ?
I replaced my PCM the other day and kept the original to put back in for trips back to the dealers. After removing the passenger side front tire and the access panel inside the wheel well the TAC & PCM are exposed. The only difficult part of the whole deal are the back mounting screws. You have to be a contortionist to get to these. Remove the TAC module (2 screws) and then remove the two connectors from the TAC. Once this is out of the way, remove the two connectors from the PCM. These are self extracting connectors that will back out when you turn the mounting screw. Next, loosen the rear mounting screw in the PCM bracket, but don't remove it. Remove the two front mounting screws from the bracket. The PCM will now slide out towards curbside. Reverse this procedure to install but don't tighten the rear PCM mounting screw and do not install the rear mounting screw for the TAC. This will make the next removal much easier. I just used a nylon tie wrap to secure the back of these modules. It is not necessary to disconnect the battery or any fuses to perform this change.