i just got a known good wiper morot for my touring but that dont work either. when i puse the wiper button, the light in it comes on, but bo wiping.
which wire at the multiplug do i need to check for what?
325i touring rear wiper not working still
Moderator: martauto
- Brianmoooore
- E30 Zone Team Member

- Posts: 49358
- Joined: Mon Jan 10, 2005 11:00 pm
Unplug the control module (in LH compartment), and see if it runs when you connect the purple/red to the black/yellow, with the ignition in position 1.
- Brianmoooore
- E30 Zone Team Member

- Posts: 49358
- Joined: Mon Jan 10, 2005 11:00 pm
Does it park in the same place every time, or in random places?
- Brianmoooore
- E30 Zone Team Member

- Posts: 49358
- Joined: Mon Jan 10, 2005 11:00 pm
The wiper parking position is controlled by a microswitch mounted on the wiper's gearbox cover. The microswitch earths the black/red wire that connects to pin 31b of the control module.town325i wrote:random places its a right pain in the arse
Pull off the plug from the control module, link the purple/red and black/yellow wires together, so that the wiper runs continuously, and connect a resistance/continuity meter between the black/red wire and earth (brown wire). The microswitch should switch every time the wiper reaches the park position.
I washed my Touring the other day and noticed that the wiper works perfectly now, so I suspect a bit of white grease around the spindle might help on mine. It always works, but since I cleaned the car (and the back window was properly filthy - my work is based on a farm) it's been spot on. 



