[Vwdiesel] Cruise control

[Doug Ferguson]

Hi Val 

----- Original Message -----

The AHU has the fly by wire throttle. Sounds like your Switch or switch wiring has an intermittent connection somewhere, but all the speed control is done in the ECM and injection pump internally. The Bentley should have a diagram you may be able to use to ohm the switch assy out.  Best of luck.  Doug  
   1. Re: Cruise Switch (Val Christian) 


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Message: 1 
Date: Mon, 23 Mar 2015 09:23:32 -0400 (EDT) 
From: Val Christian <val at mongo.mongobird.com> 
To: vwdiesel at vwfans.com 
Subject: Re: [Vwdiesel] Cruise Switch 
Message-ID: <201503231323.t2NDNWCe003198 at mongo.mongobird.com> 
Content-Type: text/plain; charset=us-ascii 

In this case, the cruise will fire up, and if I do a left turn signal, 
the cruise will drop off.  That is the normal modality.  The second 
modality, which it is in right now is not coming on at all. 

The conclusion I have come to is that the problem is electrical.  Compressed 
air, contact cleaner and four letter incantations have not worked. 


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> Generally when cruise keeps falling off, it's a vacuum leak.  Try holding the button on and see if the throttle catches up until you let go, unless it's a bad leak that should work, but it'll quickly drop off (like, as soon as you let go of the button). 
>      Loren 
> 
> 
> 
> -----Original Message----- 
> From: Val Christian <val at mongo.mongobird.com> 
> To: vwdiesel <vwdiesel at vwfans.com> 
> Sent: Sat, Mar 21, 2015 2:58 pm 
> Subject: [Vwdiesel] Cruise Switch 
> 
> 
> I have a cruise control switch which kept dropping out cruise.  After 
> not 
> driving the car for 5 weeks, now it is not working at all. 
> 
> The vehicle is a 
> 99.5 Jetta TDI.  I can find controls which look more 
> like the ones on my 2002 
> and 2003, but not the 99.5.  One person who 
> professed only novice knowledge 
> told me that he thought the switches 
> were interchangable, and that to a degree, 
> the switch determines the 
> features (like reset, speed down, etc.) 
> 
> Does anyone 
> know for 
> certain? 
> 
> Thanks. 
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