Extremely late reply but I finally got around to pulling the ECU again to take pictures. Here is what I’m talking about. I tried cleaning off the tar but it ended up wiping off part of the sticker so I left it. I can’t read the Calibration ID As you can see. Is there any other way to get that ...

I am planning on purchasing the i3 +PCM Swap for my 2016 Ram 1500 so it will require an unlocked PCM for tuning. I removed my PCM and there is a bunch of black tar like substance covering the back of it. I can not read the Calibration ID off of the PCM in full so I am wondering of there is any other ...