The "bus" is the system the computer on the Ram use to "talk" to each other. The "no bus" message on the odometer means that the system has failed. You will need access to a scan tool to diagnose. Any computer on the truck or any of the wires in between can cause this problem.
A 1999 Dodge Ram transmission does not have an input speed sensor
No
The communication system for the computers has failed. Could be any of the computers or the wiring in between.
A 1999 Ram does not have EGR.
A 1999 Dodge Ram transmission does not have an input speed sensor.
Yes.
A 1999 Ram does not have EGR.
A 1999 Dodge Ram needs 16 inch or larger wheels.
No
No. A 1999 Ram is not equipped to run on E85.
A 1999 Ram does not have EGR.
A 1999 Ram does not have EGR