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Old 04-05-2010, 07:06 AM   #4
ARModen
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Join Date: Oct 2009
Location: New Orleans
Posts: 146
I think 76er is probably right.

The instrument cluster is a computer. A noisy power supply from a bad battery will definitely throw it for a loop. Relax, check the fuses, make sure the battery is both good and charged, then start the car up and give the cluster a few minutes to reset itself. If you just have a battery maintainer or trickle charger it may not be enough to restore a deep charge on a battery that's been sitting for an extended period of time. You'd need a good hour of driving or a higher amperage charger to see if the battery is still good. Most autoparts stores will do that for free (hoping to sell you a new battery).
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