Technical What is this? Dodgy window electric motor?

Currently reading:
Technical What is this? Dodgy window electric motor?

siwilks200

New member
Joined
Sep 17, 2015
Messages
95
Points
27
Hi I'm trying to fix my window electric that only goes up in increments and goes all the way down in one push of pressing down!!

Trying to work out if the attached 2 parts have ahything to do with the window system?

Thanks
 
Attached
 

Attachments

  • 20151010_130701.jpg
    20151010_130701.jpg
    1.6 MB · Views: 38
I've changed the motor and ecu and switches with ones from the breakers and there is no change. The new ecu makes a very slight improvement but it's still the same.

Only goes up after 6 presses and then only 2 inches at a time! Haha
 
When you first press down in increments it seems to be ok but when you then ptess up it suddenly drops all the way down!!!


Then thw up procedure is as described above
 
When you first press down in increments it seems to be ok but when you then ptess up it suddenly drops all the way down!!!

Sounds like it could be a problem with the anti-pinch sensor (item 3 in the diagram below). It's the rubber strip along the top, inner edge of the door frame. The wiring from it connects to the door control ECU.
.
 

Attachments

  • Anti-Pinch Sensor.JPG
    Anti-Pinch Sensor.JPG
    44.9 KB · Views: 27
OK cool I'll remove it and see if it then works properly. if it is removed and or disconnected will the window actually work?
 
Would I need to remove the whole strip to see if that fixes the problem or just unplug the plug? Ta
 
Would I need to remove the whole strip to see if that fixes the problem or just unplug the plug? Ta

You don't need to remove the sensor strip to test it.

Disconnect the connector from the ECU and connect an ohmmeter set to low Ω scale across the 2 terminals of the wiring plug. Note whether it is closed or open circuit. Then press the bottom edge of the rubber sensor upwards and note whether it is closed or open circuit. It should be the opposite of the previous reading.
.
 
That was an interesting test! I get a reading of 20 and then when I press the strip goes down to 1 so I guess this is ok?

interestingly when I detach the plug the window stops going all the way down when I press up! but I still have to go up in 2 inch increments

Does this help narrow it down? Sounds like the ecu....what else is there? Motors fine and I think the pinch sensor is ok
 
So weird

I have 3 ecus here and was testing them all with no good results then I reconnected my original 1 on the door and it seems to be working perfectly which it has never done before!!!!

maybe the connectors were dirty?
 
thanks. i have an orange U480 (i think) OBD2 device, will that do the same thing? havent plugged that in yet, or seen a need for it. ta
 
thanks. i have an orange U480 (i think) OBD2 device, will that do the same thing? havent plugged that in yet, or seen a need for it. ta

Have you lubricated the rubbers and channels, a stiff window will trigger stopping the motor to prevent pinch injuries. Gravity is working against it on the way up and with it on the way down hence why it may go down but not up.
 
Have you lubricated the rubbers and channels, a stiff window will trigger stopping the motor to prevent pinch injuries. Gravity is working against it on the way up and with it on the way down hence why it may go down but not up.

The Stilo doesn't use over current draw to trigger the anti pinch function. It uses pressure switches built into the inner rubber trims along the lower edge of the door frames. (as I posted it 7 and 11 above).

Try it..... set a window to auto up and press upwards on the bottom of the trim. The window should stop and fully retract down.
.
 
The Stilo doesn't use over current draw to trigger the anti pinch function. It uses pressure switches built into the inner rubber trims along the lower edge of the door frames. (as I posted it 7 and 11 above).

Try it..... set a window to auto up and press upwards on the bottom of the trim. The window should stop and fully retract down.
.

It does stop on overcurrent. If you push down the glass as its rising it halts and doesn't go back down not sure if thats by design or the overcurrent dropping the voltage in the weedy power wire sufficiently for the controller to drop out.
 
Please see new photo which may explain a lot.....

Just as a follow up I have since found this section in the manual explaining that if the pinch sensor is activated 5 times in 1 minute then it enters recovery mode.....resulting in the upward window jerks!

Maze balls! But doesn't explain the other issues such as the window going down instead of up...
 

Attachments

  • 20151101_091323.jpg
    20151101_091323.jpg
    2.7 MB · Views: 23
Back
Top