Site News - 9/23 Horn Button Rebuild 900/9000 | 9/21 Abandoned Saab Dealership
Date: Thu, 16 Sep 2004 06:18:19 GMT
From: SuoTimo <>
Subject: Re: c900 windshield washer: mystery deepens

Hi, The problem is in one of the headlight wiper motor, most probably not the switch or relay. The headlight wiper motor has a diode that prevents the current from supply to enter the washer/wiper system - if the diode is burned (e.g. it's continuous) one gets symptoms as you describe. There is a website describing how to R&R the motor assembly - it's for 9k but I think the motor assembly & wiring is about the same... http://www.nospam/procedures/electrical/headlampwiperepair.html Quick solution is to detach the wire harness of the wiper motor(s) in the motor end. Hope this helps,,,, SuoTimo _______________________________ John B wrote: > > Hi all, > I posted a few days ago that my windshield wipers/washer had started running > constantly, and were only stopped when I pulled the headlamp wiper fuse (#8; > the car is a 1992). I have now noted that the wipers still work normally, > including the intermittent function, and that the windshield washer works > normally (except without the headlight wipers moving, due to removed fuse). > > So now I think we can officially exonorate the wiper switch in this case. > > According to the wiring diagram, the headlight wipers are controlled by the > intermittent relay. But as mentioned above, the intermittent wiper function and > windshield washing/spraying work normally. > > Is the intermittent relay likely to be the problem here? If any of you have > some clue, please reply. > > Thanks, > > John

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