Date:         Sat, 1 Jun 2013 21:29:47 -0400
Reply-To:     David Beierl <dbeierl@ATTGLOBAL.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         David Beierl <dbeierl@ATTGLOBAL.NET>
Subject:      Re: Wipers suddenly not working, trip tomorrow
Comments: To: Mike South <msouth@gmail.com>
In-Reply-To:  <CAN483vdMOtD95c5LmpiG3cd4f5cpi3VMmrv9LT9zoJUAQU3KPg@mail.g
              mail.com>
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At 08:33 PM 6/1/2013, Mike South wrote:
Do the heater blower and rear defrost work?


>Nope.  Heater blower does not work, and I am sure I tested that
>after the dash was on because I used the switch on the outside of
>the dash to do it.
>
>  If so, the load reduction relay and its drive from the X terminal
> of the ignition switch is good.
>
>
>I pre-emptively replaced the ignition switch with a new one when I
>was putting the dash back on.  I know that new does not equal good,
>and also that you should suspect the part you put on last,
>first.  How can I test if power is coming off that terminal?

If the headlights work (key on) then the ignition switch X contact is good.

Key on, rear defrost switch on, verify B+ between two terminals of
rear window element.  If yes, load reduction relay is ok, check for
problem at fuse S10.


>Also where is that load reduction relay, and how would I check it?

Third hole from the left, see 97.10

To test, pull it, diagram the labeled terminals, replace it.  If
everything now works you had poor contact in the socket.

Pull relay again, measure voltages to ground as follows (97.66 at
top)in this order:
Terminal 30 - B+ regardless of key.  If not present, make sure your
meter ground is good and can read B+ at top of Fuse S8.  If so, 4
mm^2 red wire loop to top of fuse S8.
Terminal 86 - B+ with key on, zero with key off.  If no, wiring from
there to ignition key X terminal.
Terminal 85 - ~0 V.  If so, check with relay in and key on, still
should be ~0 V.  If it's B+ instead, bad ground from there to star
clusters forward of fuse/relay panel.  In that case, the 4-way
flashers also will not work.
Terminal 87 - Replace relay, check for B+ with key on, zero with key
off.  If zero, very high likelihood bad relay.  If relay bad, you can
in emergency remove and open the relay and solder a 4 mm^2 jumper
between terminals 30 and 87.  If you do this wipers, heater blowers
(rear heater blower left off diagram apparently), and rear defrost
will be live at all times.


>
>
>
>Does washer pump work?  If so then you've eliminated fuse S10 as a problem.
>
>
>If S10 is the tenth fuse starting from the driver's door, the fuse
>looks ok.  However, with the key on, there is no power on either end
>of the fuse.

Ok, see above.

Yrs,
d