Trabant Tech Forum

I don't have electric washers so when I tried the replacement switch there was an unused terminal on the switch. I just assume that by pressing in on the switch that would activate the electric washer pump if it were connected. I put the original switch back in the car so the replacement is back in its box.



Where should the extra wires be running from and to? The switch has four connections, 3 of them go directly to the motor. The motor has only 4 connection points, one of them is a ground. I am using all the connections so I don't know where another wire would go unless you had to splice it in somewhere.

The intermittent wiper switch does operate electric window washers when pressed.
It does this by providing a ground connection (B-) to the pump instead of providing B+ as you might expect.
The washer pump will normally show battery voltage on both terminals with the key on, until the switch is pressed in, which grounds one of them.

The extra terminals would be for the washer pump and for the separate high speed used on 12v cars.

Will look at schematics later...

[USER=757]@Keri[/USER] : When I cycle through the different switch positions that you listed it seems like they should work as follows:

0 -Park
1 - On
2 - Intermittent shorter delay
3 - Intermittent short delay
4 - Intermittent long delay
(this is based on what is currently working and the timing of the "click" inside the switch)

Unfortunately the only position that is currently working is #1.

When i fitted a 4 speed switch rather than the two speed switch there was an extra terminal on switch I connected it with an extra wire to the motor . I simply joined up the numbered terminals to each other ie 53b to 53b . This was on a wartrburg but all IFA vehicles seem to use the same switch and very similar motors .When I ran the extra wire I got one constant speed and two intermittent

Ok so all the terminals were not being used on yours and you just added in the missing wire to connect all the terminals.

On mine all the terminals are being used. so there are no empty terminals to add a wire. I looked at the wiring diagram and when the diagram is compared to what I have it looks like 2 of the wires are connected backwards. If I correct the wiring to match the diagram it immediately blows the fuse.

Ok try this get a 2 metre piece of wire and crimp a terminal on each end . You have 3 wires on yours between motor and switch? take off one wire at both ends and substitute your temporary wire ,checking terminal number is same at each end. I'm thinking one of your original wires is shorted or broken. Try substituting each of your 3 wires and hopefully you will get more than one speed.