Question about 2000 Dodge Ram 1500 Truck

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No bu5 light is on

Truck runs but insturments don't work what does this mean

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It is "no bus". It means the cluster is unable to communicate with the other controllers through the PCI bus. The engine controller tells the cluster fuel level, engine temp, and oil pressure. The transmission controller and ABS tell the cluster to display speedometer functions, warning lights and such. Air bag communicates when to turn the light on and so on.

Posted on Jun 17, 2009

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Posted on Jan 02, 2017

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