1998 Dodge Caravan Q&A
1998 Dodge Caravan Question: Instrument cluster gauges not working.
I changed a faulty heater control module (the controls under the radio), and when I plug that in, my gauges quit working. They work fine if I leave the wiring unplugged on the heater controls.I left the controls on heat and defrost and I do have the fan control plugged in for defrosting and heat for cold mornings. But doing so, I do not have control over temperature or control for rear window functions now (defrost, wipers, etc). Could problem be in wiring itself or with the cluster, or perhaps the used heater control module I put in. The self diagnostic on the heater control module ends up with no fault codes, but with the heater control wiring plugged in, I cant even get the self dianostic on the cluster to activate until I unplug it from the back of the heater control. - finiman100
used unit??? first mistake. you should always use new on these electronics. was the cluster working ok with the bad module?? Roy - mastertech6371
the dashboard lights and gauges don't work all the time. my speedometer and gas gauges doesn'tr work and i would like to figure out why thanks
The gauges will work when I first start the vehicle. Then after about two miles, all the warning lights flash and the gauges go up and down and then they stop working. This includes the speedomet...