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CODE READS NO BUS WHAT IS WRONG - Ram Pickup 3500 Dodge Cars & Trucks

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Hello
Most of the time when your code says no bus there is a loose wire or conector between the ecm and the dash,
Many times its where the wireend conects to the speedo head where it is a problom. I would look there first

Posted on Jul 19, 2010

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1 Answer

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This will need a good repair shop , not necessarily a dealer. Find one recommended by friends that can do computer/electrical work. The "no bus" means the cars computer network is losing comminication between itself. This is not a code , but you might have code(s) stored in the computer system.A repair shop can scan for any stored codes to start the diagnosis.The problem could be in the PCM (engine computer) or even the Theft deterent system. Sounds more like theft deterent because of the no crank situation. If you have the spare ignition key try it & see if anything changes.

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