Having issues with my truck, no engine light just have a DTC U0073 which is something like communication bus A off.. ive also had other codes for loosing communication with power train control module. unless the dtc's are erased the truck wont turn over also whenever the engine is running the fan clutch is engaged and the fan runs non stop. any idea what the issue is fellas? and what it takes and costs to get it fixed? I can clear the code and truck will start up and runs just fine until code comes back.
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