concor

Hi guys,

'84 S Euro here. I have a little problem with my windshield wipers. They're not working! I had an oldtimer tour yesterday and had to wait until the rain was over. Eventually I just drove in the rain which was quite challenging I must say

I haven't figured out what is wrong yet of course. I do get a voltage dip on the dashboard volt meter if I put the wipers on. Here is what I tried:
- I replaced the fuse
- looked at relais XIII (it looked clean)
- cleaned and tightened the connections on the 6-pin wiper-motor-connector
- tried to push the wipers by hand a bit in case the motor was stuck
- there is 12 volt on the bottom part of the voltage, also when the dashboard wiper switch is not on

Could someone please help? I have a photoshoot this weekend

Ducman82

are you getting power to the fuse?
power to the switch?
power to the motor?

davek9

Good coating of Rain X works in a pinch

linderpat

One cannot tell if a relay is good just by looking at it. I'd replace it; likely your problem.

Wisconsin Joe

I forget the exact pinout on the plug, but you should be getting 12 at one of the 'hot' on low, two of them on medium and three on high.

Also, you can put 12v to the appropriate pins on the side going to the motor to see if it works.

But Ed is likely right. And even if he's not, it's a quick and easy test.
Honk your horn. If it works, swap the wiper relay with the horn relay. See if the horn works, or if the wipers work.

concor

Hey there, I got it fixed. Thanks for the help! And thanks to this forum for the invaluable amount of info on the other threads.

The wiper relay was not the problem by the way. That relay is actually only used for the intermittent mode. If you remove it, the wipers still work on speed 1, 2 and 3.

What was also strange was that after cleaning the motor if I put 12 volt on the motor through my 8 AA batteries, then it still did not work. Perhaps the AA batteries do not have enough power. The motor did work through the 6-pin connector of the car.

Anyway, so rust was the problem. I discovered that the motor was the problem because I did get power on the 6-pin connector. On pin 53 to be exact, where the green-black wire comes into the 6-pin connector. The motor gave a small click when initializing and the volt meter on the dash made a dive from 11 to 10 volt.

After opening up the motor is was pretty obvious. I cleaned it up with compressed air, a dremel and cleaned the outer casing with alcohol. Added some thick grease to the top metal part. Then added some liquid gasket stuff, put it back together, and taped it up to prevent water leaking in in the future. Added a few pictures below. Thanks again!