Date:         Wed, 20 Jun 2007 09:19:35 -0400
Reply-To:     Dennis Haynes <d23haynes57@HOTMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Dennis Haynes <d23haynes57@HOTMAIL.COM>
Subject:      Re: OXS light
Comments: To: zolo@FOXINTERNET.NET
Content-Type: text/plain; format=flowed

Any chance the alternator light is flickering with the O2 sensor light? Is
the alternator warning light working? The O2 light goes on with the
Alternator light as a bulb check. When the ignition is turned on, before the
engine is started, the alternator light and O2 light should light solid and
the oil pressure light should flash. So should the high temp/low coolant
light in the temp gauge. these should always be confirmed.

The alternator and O2 sensor lights flickering is usually a sign of an
alternator problem, often caused by worn brushes. The blue/white wire going
to the fridge relay under the drivers seat is part of that circuit. When the
alternator starts charging, the back feed from this circuit operates the
relay. this ensure that the fridge only operates when the alternator is
charging. Thus if the alternator fails, the fridge turns off.

Dennis


>From: Zoltan <zolo@FOXINTERNET.NET>
>Reply-To: Zoltan <zolo@FOXINTERNET.NET>
>To: vanagon@GERRY.VANAGON.COM
>Subject: Re: OXS light
>Date: Tue, 19 Jun 2007 22:08:55 -0700
>
>I had this happening to my Westy too and the service guy told me to
>disconnect the blue white wire that's connected at the relay under the
>driver's seat.  After that no more.  But I can't tell if it would have come
>on when the counter done with  the sixty thousand miles.
>Zoltan
>----- Original Message -----
>From: "Steven Sittser" <ssittservl@AOL.COM>
>To: <vanagon@GERRY.VANAGON.COM>
>Sent: Tuesday, June 19, 2007 9:44 PM
>Subject: OXS light
>
>
>My OXS light on the dashboard has started flickering.
>
>The O2 sensor was replaced a few months back; a month or so later,
>the light came on. I tried (many times) to reset the mileage counter by
>pressing the button on the speedometer cable box, as described on
>vanagon.com. It wouldn't work, though - the light stayed on. The
>mechanic that replaced the O2 sensor tried the same thing, and the
>light still stayed on. He noticed that a couple of the wires that lead
>to the box had been clipped by somebody (some previous mechanic,
>I assume). I tried a few days later, and reseated the electrical connector
>(with its remaining wires) on the speedometer cable box, and the light
>finally went off.
>
>Now, though, the light's begun to flicker and come on occasionally.
>
>Is there any reason I can't just unplug the wires from the speedometer
>cable box? I've looked at the wiring diagrams in the Bentley manual,
>and I'm confused by additional wires that appear to lead to surprising
>places (surprising to me) and have no obvious relationship to the
>O2 sensor mileage counter. I'm worried that if I unplug the wires then
>the fuel pump will only run when the left turn signal is on, or the horn
>will beep when I put on the brakes, or I'll cause some similar electrical
>mystery that will suddenly manifest itself on a dirt road far from home
>while I'm playing that banjo music from "Deliverance" on the CD player.
>
>Any thoughts?
>
>Oh, and if we get the light to stay off permanently, I promise to remember
>to replace the O2 sensor when I hit 240,000 miles.
>
>Thanks for the help.
>
>-Steven Sittser
>
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