Hey Liv,
I have this weird "battery voltage too low. expected: 11.6 actual: 11.5" problem. I am trying to overwrite the HSWM to turn up the heat, forscan connects and reads everything just fine, but stubbornly refuses to let me enter into read/write mode and throws the voltage error.
I had this problem earlier too when I was making other changes (lincoln mirrors, powerpoint timeout, seatbelt chime disable etc.) but I just waited till after driving the car to try again and it always worked.
Now, it throws the voltage error every time I try. When I am trying to make these changes, I have lights off and AC off as well, so not sure what could be drawing power. Truck has always started fine, auto start/stop always works so I don't think there is actually a low battery situation. I wonder if forscan or adapter is just reading voltage incorrectly.
Any ideas on what I can do?