Help us help you. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc.) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a solution more quickly and easily!
Does anyone know what fords vref return is? That a ground?? I’m working on a single zone ac temp door not working that’s what one wire is labeled on the schematic. It’s a manual system not electronic
If it connects with another wire/sensor i would say it is a ground. But if you dont have a signal wire it could be your signal as well. Can you post the diagram?
Fyi many fusion and edge from that era had hvac module reflash. not sure if it applies to this exact vehicle but maybe you can look into it if things arent making sense
Noah that’s what I thought. I went from dlc pin 4 to vref return and got 5 volts. I told the shop sounds like a bad ground but they were all like you sure you know what your talking about etc I said yes. Then left because they didn’t want to pay up for my advice. Haven’t heard back I’m assuming it fixed it running a redundant ground
Cheryl wrote: Noah that’s what I thought. I went from dlc pin 4 to vref return and got 5 volts. I told the shop sounds like a bad ground but they were all like you sure you know what your talking about etc I said yes. Then left because they didn’t want to pay up for my advice. Haven’t heard back I’m assuming it fixed it running a redundant ground
Looks like you won't exactly trip over your own shoe laces to help that shop again...
