SL1 Wiper Control

So this morning, my wipers decided to act up, intermittent setting 3 and 2
work fine, low speed wipes once, mist wipes once, high speed works fine,
washer doesn't work at all.

Where should a begin looking??

SHaughn

 

Might want to give year and model so if someone can relate better,
he/she can help you faster.

hth,

tom @ www.Love-Calculators.com

 

On Wed, 09 Feb 2005 09:04:49 -0500,

Sorry ment year and mileage.

Tom

 

whoops!
94, 258,000km

 

I looked at the schematics for the wiper system of a 1998 (dont have
anything prior to 98) a good long time and still dont completely
understand it (most confusing schematic I've studied). This is the best
I can come up with.


Power goes from the battery to the wiper motor unit

Into a microprocessor

Then a signal current passes from the microprocessor and then gets sent
to the wiper switch

The wiper switch then grounds this current.

The wiper switch contains resistors which change the amount of current
flow.

Depending on how much current gets grounded tells the Microprocessor at
the wiper motor what relays to switch on. (the relays are in the wiper
motor unit and change the speed)


Looking hard at the schematic I think your problem lies with the
microprocessor. It is part of the wiper motor unit and will need to be
replaced as a unit as I do not think these are servicable. This is my
best guess and its not uncommon for these units to fail. If you want I
can probably post the very confusing schematic.

 

yeah, well funny thing, it started working again this morning. Just like the
one time my instrument cluster went dead, a smack on the dash and it's been
good for 4 years now. Just having a bad day I guesss

Shaughn

 

Maybe it was humidity or something of that nature.

 

Good point, maybe this is a contact corrosion issue.

If so, maybe a letter to saturn can help them up their quality
control, and find out if other drivers experienced this problem.

imho,

tom @ www.Love-Calculators.com

 

WELL, almost home and what happens? wipers come on, by them selves, no
shutting them offf, no washer either, only setting that changes anything is
high, and all it does is go faster. I guess after 11 years and 260,000km
they're tired.