1997 caravan sport, gas ,rpm,heater,speedometer gauges ,doesnt work. every thing else works, all lights,horn,turn signals,etc.?

Check fuses first. Also check all pcm harness connections

well yes but no,the speedometer signal comes from speed sensor in the transmission then goes through the ecm/pcm via the tcm (transmission control module, then on to your speedo,if the speed sensor goes bad usually the speedometer will work crazy if not at all also the instument clusters also go bad causing failure too find a new tech dude

Where is the color code on a 2002 Dodge Caravan? ... These vehicles do not have speedometer cables. ... I have a 1997 Dodge Grand Caravan and my cruise control and horn stopped ... We just bought a 2001 Dodge Caravan and had the same problem. ... Start with the easiest and work towards the more complex. ..

The speedometer is operated by a cable to the transmission. The gear selector is also a manual linkage. Neither are electronic. There may be something stuck underneath inferring with them directly.

I'd wager that the fuse that controls the gauges is shot, or one of the internal connectors got unplugged (Fuse sounds more likely). Radio, Lights, and Turn Lamps are usually on seperate circuits.

Most likely a fuse,or the ignition switch is bad.

You will have to give a little bit of time on this one. The over heating coming up through the vents, sounds like your heater core. Now the temp gauge not working may be a sending unit (which one I am not sure there is three of them). The sports light I have never heard of that before. Now the car stalling and not turning back on could be a few things like, clogged or catalitic converter, or crank shaft sensor just to name a couple. The speedometer working only part of the time is usually the speedometer gauge in the dash but if it don't work at all it's probably a snapped speedometer cable or even a loose one.

this is a body control module (BCM) fault, replace it..

Disconnect the battery for a minute or two and reconnect it. Sometimes the BCM (body control module) locks up.

The brake and ABS light both come on when you are receiving no speed signal. Most likely the speed sensor in the top of the rearend is bad.