How to connect the GPS to speed sensor in '95...

First of all make sure you do have elctronic speed sensor and not mechanical
(is your odometer display LCD?). Since there is hundreds of car models every
year and they change every few years I doubt Kenwood could provide location of
the wire for every car, and there is no way they could predict it for future so
you need to get your Caravan manual with schematics available at most auto
parts stores. Another thing is not every car has separate  wire for speed
sensor out so you may need to tap existing wire which goes to speedometer.
There are two places where this wire would be easy to identify: One is probably
somewhere close to transmission  and main shaft, another would be to take
dashboard out and trace it directly to connector from the speedo itself. GPS
should work without the wire so I would make sure it works and everything else
is connected properly like antenna, power etc. If the unit can play DVD it
should have another wire going to hand break to disable DVD playing when
handbreak is released and you're driving unless it takes that info from speedo
wire as well (that info should be in Kenwood manual).

Probably best to visit your local Chrysler dealer and ask them.

Matt

Kenwood KNA-DV2100 instruction diagram shows a wire to connect to
speed sensor, that's it, that's why I'm looking for the 95 Caravan
speed sensor location ... H. Ham

Much better link.  Looks neat.

Matt

The Kenwood instructions don't tell you where to find it?

Matt

Looks neat, but I didn't see any referenct to a "DVD unit" as mentioned
above.  Looks like only a navigation system, from what I read at the
link above.

Matt

Look here for why its called a GPS DVD system

http://thewholesalematrix.zoov y.com/product/KENWOODKNADV2100

On Sat, 20 Dec 2003 15:12:25 GMT, "Matthew S. Whiting"



REMOVE the NOCRAP in my address to reply.

Recently when I traveled with my laptop GPS through PA, it would show me in the
middle of the Atlanta ocean if we went thru a tunnel. Kinda weird, but once out
of the turnnel about 10 secs, it was right back on track.

James

I think the speed sensor is to alert the GPS system to stop operate
like ...dead reckoning for tunnels etc ... so the map will not move
around and stop the GPS to search where I'm located, that's way I need
to connect to the speed sensor, but up to now still can't locate the
speed sensor wire yet.

H.Ham

<http://www.google.com.au/searc h?q=Kenwood+KNA-DV2100&ie=UTF- 8&oe=UTF-...&gt;

"... Kenwood KNA DV2100 GPS Receiver ..."

Most GPS built in units have a form of dead reckoning for tunnels etc.
This is part of why they cost so much more.

Dale
--
     _      _     Dale DePriest
    /`) _  //     http://users.cwnet.com/dalede
  o/_/ (_(_X_(`   For GPS and GPS/PDAs

Thanks, that makes sense.  I'm used to GPS in airplanes where being
blocked by buildings or tunnels isn't a problem.  If my GPS gets blocked
by either of those, then loss of position is the least of my problems...

Matt

Why does the subject line say GPS if you are hooking up a DVD unit?  My
guess for the speed sensor for a DVD player would be to allow the volume
to increase with speed.  My motorcycle radio/cassette player works this
way.  The faster I go the louder the volume gets.  My unit has a gain
control to allow me to select just how fast the volume ramps with speed.
  Does your Kenwood have such a control?  If it does, then this is very
likely the purpose of the speed sensor input.

Matt

Some automotive GPS units use a connection to the speedometer cable (and
sometimes other parts of the car wiring) so they can still make a guess as
to your position when the satellite signals are temporarily blocked, e.g.
by tall buildings or when going through a tunnel.

Thanks Steve, I'll try to locate it tomorrow, thanks again for your
help.

Matt, mine is a Kenwood KNA-DV2100,it's a 2002 DVD unit, the system do
require to connect a wire to the speed sensor, dont know ... please
advise, thanks

Your engine management system will log a fault for speedo sender not
working, which will still be there next time someone looks at the fault
codes.  Remember to clear the computer or ask your mechanic to do so
after you do this to avoid future confusion...

Most GPS units are quite capable of computing a pretty accurate speed
themselves.I'm curious, what does the Kenwood GPS use the speed sensor
signal for?  Unless the GPS you are referring to isn't Global
Positioning Satellite.

Matt

I looked at my 93 Caravan, You really need the shop service manual.
There you can find the leads.

In any case, on my 93, There is a sealed plug with two wires that plug
into the transmission. This plug is located inside the engine
compartment, on the drivers side, facing the front and very low, you
have to reach way down to get at it.

I forget the colors of the wires, There are a number of plugs in the
same area.

If you unplug it and drive a very short distance, the speedo will not
work. Your transmission will behave strangely as well, so drive it
only a few feet to varify the speedo not working.

One of those two wires is what you are probably looking for.  But if
you are splicing into them, make sure you seal them up tight against
water, This plug is  near the road so it sees a lot of water and dirt.

This wire goes right to the computer. The speedo and all the
instruments are driven from the computer to the instrument cluster via
a bus so you don't have access to the speed data, except right at this
speed sensor.

Be carefull with this, you don't want to blow your computer, it is big
bucks to replace.

Steve L.