Can't detect power from AC charger after DIY update
I have a March 2018 build model 3, and I purchased a bundle of wires from this site. I followed the instructions on the youtube video, and I put in the new Gen4 ECU. After the install, and re-installing the Tesla firmware, the CCS adapter support appears in the UI. However, when I attached my Tesla UMC, it says "Charging Error - Power Not Detected". Looking in the service menu, I saw an error of "CP_a152_pilotEdgeDetectionFailed". I unplugged everything, then re-attached all of the wires connected to the ECU. It still showed the same error.
When I re-installed my old Gen3 ECU, level 2 charging worked without any issues. (I never tried CCS/Supercharging, as I need level 2 charging to work).
Is it possible to test my bundle of wires to make sure it's correct? Otherwise, are there any debugging tricks that I haven't found?
Oh, normally multimeter leads have around 0.6 ohms resistance. To find out, touch the probes together and read the resistance and subtract this number from all your readings. Less than 1 ohm is good enough to pass through the pilot signal without any issues.