What does no bus on 2002 dodge ram 2500 van mean?

The "No Bus" message on the dashboard of a 2002 Dodge Ram 2500 van means that the instrument cluster has lost communication with the vehicle’s Powertrain Control Module (PCM) or other critical systems via the data bus (a network of wires that allow electronic modules to communicate).

Common Causes:

• Faulty PCM
• Damaged wiring or corroded connectors
• Blown fuses
• Bad crankshaft position sensor

This issue can lead to the engine not starting or the gauges not working properly.

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