I'm pretty sure the switch is to tell the ECU that there's an added load
(from the power steering pump), so it needs to increase the idle speed.
Mine seems to be functioning just fine without that switch.  I don't
understand why the switch uses a hot feed, rather than ground.  I also don't
know why it fries like that--one of life's little mysteries, I guess

On Sun, Dec 14, 2008 at 11:25 AM, Michael Sullivan
<sandwichhead@gmail.com>wrote:

> Check out the coorected link. But that is the same problem I am having.
> Seems that another wire is either melting near them or because they toched.
> Why did this melt? Why is the switch there?
>
>
--
Casey
'87 300TD
'94 100CSQ Avant
'89 Bluestar

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