All this LIN, CAN, yack yack yack is great fun... But I want to re-focus on my current ask, and is something anybody can do with a simple volt meter:
Quote:
Okay next person to go into either door, check out some wires on the power window regulator E5 on left door or F1 on right door. Say which door because they might act different.
What is voltage observed on some wires running between the window switch and window motor, on these pins on the window motor connector:
Pin 5 white wire, when car acc power is active, and again when acc is cold.
Pin 1 white wire/black stripe, when acc power is on, window doing nothing, then again while window rolling up using switch on door. And does voltage change/drop when window reaches top edge? Continue to observe voltage and roll window down.
Pin 3 green wire, same tests as pin1.
Use a good chassis ground point wire for the negative lead on meter.
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Me having access to a car at this stage is not a real problem, it's me having time to go into the car and do things with a person volunteering their car is the issue. By fanning out work at this stage is the only way I can make progress, it's sort of a group discovery thing required here. My best is to help lead this expedition - team will make things happen. This is how I developed most of the autowindow features for VAG cars - never seeing some features on cars in person, but building electronics that integrate well and are lasting to this day, over a decade later.
Thanks!