The instrument clusters are equipped with a self diagnostic test feature to help identify electronic problems. Prior to any test, perform the Self-Diagnostic Test. The self diagnostic system displays instrument cluster stored fault codes in the odometer display, sweeps the gauges to the calibration points, and bulb checks the warning indicators. When the key is in the ON position with the engine not running, the MIL will remain illuminated for regulatory purposes.
To activate the Self-Diagnostic program:
With the ignition switch in the OFF position, depress the TRIP ODOMETER RESET button.
Continue to hold the TRIP ODOMETER RESET button until ""Sof"" and a number (software version number appears briefly in the odometer window, then release the button. If a fault code is present, the cluster will display it in the odometer display. When all fault codes have been displayed, the cluster will display “end” or ""E"" for end in the odometer display.
You can also try a reset by disconnected the negative battery cable and leave it over for about 1/2 hour. This should reset most of the codes on your Dodge (just remember that it will also reset the codes on your radio:-)"""
"I know this is an older post but I had just problems with my instrument cluster in my 2002 Dodge grand caravan eL 3.3L . No blinkers, no Od , no speedo, all dead, there was only illumination with head lights on cluster was dimmable ,
Answer / Solve ; Smaller wire, red, with fusible link 3"" from battery positive that goes from battery positive to the power distribution center."
All instruments inop, tach water temp speedometer odometer turn signals rear brake lights seat belt and key in ignition warning inop. Found the fuse marked hazard lights blown. That fixed it
"My battery died and when I tried to jump it, the instrument panel and turn signals stopped working. I had replaced the batteries, so I checked the battery cables and everything I could think of.
The solution was the FUSE for the HAZARD LIGHTS. How in the world that made the speedometer, odometer, etc. stop working is a complete mystery, but there you go."
I found the extra wire going to the positive terminal on the battery came loose so I repositioned it and tightened it down and my dash cluster came back on thank you everyone for your info it really helped."
"My 2006 T&C instruments would sometimes go crazy, then turn off, while the radio seemed to continue making a clicking sound like a relay switching on and off. Wednesday, it wouldn't straighten out when I disconnected the battery, like it had before. I checked the fuse box with the ignition off, and the accessory relay was clicking off and on. When I remove the relay, the dash board is fine, but the radio and power windows don't work. When I put it back, the problem comes back. At least we can drive it with the relay out. (Actually, it drove fine even when the instruments weren't working, but it's hard to select the right gear and obey the speed limit.) A new relay did not solve the problem.
My guess, with some help from a friend who is an expert Chrysler mechanic, is that the power cycling is confusing a computer on the accessory circuit, maybe in the radio, and it is transmitting garbage that prevents the instrument panel from knowing what to display. Tomorrow I plan to check the driver's window switches, which stick sometimes. If that's not the cause, I might disconnect the radio, and check whether I can find anything else on that circuit."
