Testing VSS Speed Signal

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crazyhorse
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Location: Llantwit Major, Bro Morganwg, South wales

Testing VSS Speed Signal

Post by crazyhorse »

Hi folks,

My current installation of a cruise control is going south.

see http://forum.club8090.co.uk/viewtopic.php?f=11&t=165875" onclick="window.open(this.href);return false; (mods sorry for starting another thread..but please allow)

I have finally tracked down the problem In an attempt to get it working. I think so anyway

I have no speed signal going to it. I bought this http://www.gowesty.com/product/cruise-c ... sensor-?v=" onclick="window.open(this.href);return false; rather than putting a sensor on the driveshaft at the back of the van.

Is there a way for me to test if the VSS works?? or is there an alternative to this?? Any ideas?? My speedo bounces a bit but not too bad, would that be a problem??
87 Transporter 1.9 WBX DG and LPG. In Maroon

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crazyhorse
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Posts: 857
Joined: 21 Aug 2013, 15:01
80-90 Mem No: 15202
Location: Llantwit Major, Bro Morganwg, South wales

Re: Testing VSS Speed Signal

Post by crazyhorse »

Im going to answer my own question. Asked Go Westy... this is what they said...

Make sure that the red wire has voltage (key on) and the black wire is grounded. Use a multimeter to measure the voltage between the grey wire and ground. Remove the speedometer cable, and slowly turn the cable port on the back of the speedometer. You should see the voltage rise, then fall back to zero as the speedometer spins.
87 Transporter 1.9 WBX DG and LPG. In Maroon

http://www.guestwho.biz

jacobh
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Re: Testing VSS Speed Signal

Post by jacobh »

It is a very a basic way to measure but it will give you an indication.

From what I remember from my install that I had to cut the wire loop at the MS50 to match the pulses coming from my sensors
and to set the sensitivity on the MS50.

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