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From: Duncan Wood on 2 Jan 2010 09:48
On Sat, 02 Jan 2010 14:18:18 -0000, BigNose <bignose(a)stories.com> wrote:

> The only car I have to compare to is my daughters Matiz. It has 12V
> running through it's HRW and a resistance of 2.1 Ohms.
>
> Mine has about 6v (after flexing the wires to see if better contact
> can be made) note further flexing does not incresase or decrease the
> voltage - it appears fixed at 6v now. Again, it only appears at 6v
> when one of the spades is not connected, once connected and in circuit
> with the HRW it drops to zero - even when set on my lowest setting.
>

If it's 6v without the spade connected then the wire's broken.

> My resistance for the HRW is only 0.8 Ohms
>
> Thanks to all for offering help.
>
> Kev.
From: BigNose on 2 Jan 2010 09:53
So am I looking for 12v ?

I will attempt to cut back on the wire - passed the flexible area
(which has clearly gone bad) and put a new piece in, hoping that I
will achieve a 12v volt reading, before connecting back up.

From: Duncan Wood on 2 Jan 2010 09:55
On Sat, 02 Jan 2010 14:53:00 -0000, BigNose <bignose(a)stories.com> wrote:

> So am I looking for 12v ?
>
Yes

> I will attempt to cut back on the wire - passed the flexible area
> (which has clearly gone bad) and put a new piece in, hoping that I
> will achieve a 12v volt reading, before connecting back up.
>

By definition it will crack somewhere as inconvenient as possible, crimp
the ne bit on & push the crimp back above the roof lining so there's a
little slack.
From: BigNose on 2 Jan 2010 10:10
I pulled down the rubber covers that allow wires to transfer protected
between the hatch and the car body. There are other wires in there
related to the rear wiper. I found the thicker black wires for the HRW
on both sides and pushed the prongs from my multimeter in until they
made contact and I could not find more than 6v - so having bypassed
the flexible bit - the problem is clearly somewhere else in the wires
path.....

Is there a prime site where I should be looking?
The relay looks good and clicks and appears to function, could it be
the source of the lost 6v - or do you favour a waisted/cut/rusted part
of the wire run somewhere.

Is there a way of determining if the left side or right side wire is
more likely to be suspect.

Thank you so much for your help.
From: Duncan Wood on 2 Jan 2010 10:12
On Sat, 02 Jan 2010 15:10:21 -0000, BigNose <bignose(a)stories.com> wrote:

> I pulled down the rubber covers that allow wires to transfer protected
> between the hatch and the car body. There are other wires in there
> related to the rear wiper. I found the thicker black wires for the HRW
> on both sides and pushed the prongs from my multimeter in until they
> made contact and I could not find more than 6v - so having bypassed
> the flexible bit - the problem is clearly somewhere else in the wires
> path.....
>
> Is there a prime site where I should be looking?
> The relay looks good and clicks and appears to function, could it be
> the source of the lost 6v - or do you favour a waisted/cut/rusted part
> of the wire run somewhere.
>
> Is there a way of determining if the left side or right side wire is
> more likely to be suspect.
>
> Thank you so much for your help.

One side should be grounded so that'll be at 0V, the other side should
have 12V. If the wires are intact then check the actual switch on the
dashboard.
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