Wiper Switch - BMW Forum - BimmerWerkz.com

3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

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post #1 of 2 (permalink) Old 02-17-2005, 02:51 PM Thread Starter
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I have an '83 320i. The wiper switch stopped work prior to my buying the car. The previous owner wired in a toggle switch into the wiring of the switch itself, allowing wiper operation. I have since purchased 2 different wiper switchs, abd have plugged them into the wiring harnes, thereby eliminating the orignal switch and the toggle switch. Neither one of these wiper switches has worked. Now, both of these were used parts, but it seems to coincidental that both would be broken like the original. Any ideas? Is it possible to test the switch itself? I want to get rid of the stupid toggle. Thanks
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post #2 of 2 (permalink) Old 02-17-2005, 09:45 PM
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see if this helps

quote from mitchell on demand

wiper system
1. unplug wiper motor connector at motor. check for battery voltage at Violet/Black
wire. move wiper switch to lower speed position. volatage should be present at Black/White wire.
2. If voltage is present and motor is properly grounded, wiper motor should operate. if motor fails to operate, it is defective. Check fuses and wiring if no votage is present.

I would check the wiper control unit to see if it is pooched. a good voltmeter and a wiring drawing will help solving this prob. used

I would send the files from this program but it has the copy function disabled and so far havent found anyone savvy enough to tell me how to defeat this option. ghead

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