I have a chrysler concorde 1998 the speedo works occasionally i checked the codes with a code reader no codes were givin i checked fuses all is good any ideas?????

No generic code reader will read anything other than PCM/ECU codes, and sometimes ABS codes if you spend a little extra money.

The 1998 Chrysler Concorde also didn't have a instrument cluster that was controlled by the Body Computer. (BCM)
If your speedometer is working occasionally, then chances are that there is a intermittent short in the wiring or that one gauge is just going bad.

While you're driving or when it happens, try to pay attention to what makes it happen... Hitting bumps in the road or hitting the dash with your hand will be a sign of possible bad wiring.
If it worked when you shut the car off, and then doesn't work when you start it back up the next day could mean that the speedometer and/or instrument cluster is going bad.

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