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I had this issue also. It was the spring on the inside door handle. One of the tabs broke and the spring would not put enough pressure on the door handle to push in the inside switch. A new handle assembly fixed it. Try this. Open the door, push the microswitch for the inside handle in and hold it there and close the door (you could alternatively manually hold in the inside handle). Once the door is closed, if you let the switch de-actuate, does the window drop down? If it does, its the spring pressure on the inside handle or the pin has broken off (unlikely).
Last edited by BucketList; Jan 17, 2022 at 08:18 PM.
I had this issue also. It was the spring on the inside door handle. One of the tabs broke and the spring would not put enough pressure on the door handle to push in the inside switch. A new handle assembly fixed it. Try this. Open the door, push the microswitch for the inside handle in and hold it there and close the door (you could alternatively manually hold in the inside handle). Once the door is closed, if you let the switch de-actuate, does the window drop down? If it does, its the spring pressure on the inside handle or the pin has broken off (unlikely).
That would keep the window from not going back up when the door is close, not prevent it from dropping.
That would keep the window from not going back up when the door is close, not prevent it from dropping.
Agree, the handle also feels very firm (not like any spring issue) and not at all like in the YT video I posted where the handle is replaced and you can clearly see it does not pull back as much as it should.
Planning to open the door in the following days to try and get a closer look at the mechanical switch working with the small pin on the handle.
I don't think in this case that's the problem. He states
Window STAYS lowered while door is open (conclusion - door lock sensor is OK)
Slightly pulling the inside handle does NOT lower the window. (issue)
Once I open the inside handle enough to unlock the door, it lowers the window and keeps it lowered.
The fact that the window stays lowered with the door open means that switch is ok. It also performs correctly when being opened from the outside. What doesn't work is the one for the inside door handle.
I just started having a problem with this although a bit different than what's described in this thread. Sometimes when I open the door the window keeps making that small move up and down repeatedly as if it's confused. Not every time I open the door but enough times where I'm sure it'll get worse before it gets better. For now, it works with some manual " assistance" and a little bit of patience.
I just started having a problem with this although a bit different than what's described in this thread. Sometimes when I open the door the window keeps making that small move up and down repeatedly as if it's confused. Not every time I open the door but enough times where I'm sure it'll get worse before it gets better. For now, it works with some manual " assistance" and a little bit of patience.
Yours is likely the latch microswitch. That one keeps the window down when the door is open.
I misread the OP's post. Petza914 is correct. If the window doesn't lower when pulling the inside handle, but it does lower when pulling the outside handle and it stays down when the door is open, the issue is the microswitch for the inside handle. I don't know whether that switch is normally open or normally closed. My guess is normally closed and it's staying that way when deactuated so the window doesn't lower. Swapping that switch should resolve the issue.
So here is the mechanical switch. Measuring the 4 pins, it seems to work correctly.
Cannot find any microcontrollers around it, goes straight to the main harness that attaches the door panel to the door.
Ideas what to look for next?
Ok, no wonder there's little to no information found specifically for the 997.2 and my issue (where everything else seems to work, except for the lowering when grabbing the inside handle).
As my understanding is that there is just maybe 1? micro-controller compared to numerous on the 997.1, it sounded unlikely that the micro-controller would be the issue.
As mentioned earlier, I had verified that the mechanical microswitch was working correctly, but apart from that I was a bit blocked until I got my hands on the wiring diagram.
Before that, I was doing some guesswork (figured out the ground pin A8, but not which pin would be for the microswitch signal), with the diagram, it was clear, A7, and no current was flowing between the Pin and the micro-switch.
I was very surprised as the PCB otherwise looked very clean on the front side, and there were no resistors etc. anywhere on the A7 line.. but now I was convinced something must be going on on the back side, which is a pain to get to (used a sharp knife to loosen the plastic connector that has been melted together..) Once I saw the back side, I could tell something is not right, and the final issue was actually the connection between the front and back (through the tiny hole). I know very little about electronics and how usual that is.. but sounds rare to me. Guess some work of humidity.
Even after cleaning up the PCB as well as I could it didn't work so I took the easy path and just soldered a new A7 line, and now it's working again
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