AM R-309-R3 2at2 5. Verify MXU operation prior to final assembly: ® Jo verify Radio Read reading, use Radio Frequency Solid State Interrogator (ROSSINI) or Vehicle Transceiver (VXU) to display the register odometer reading, register ID number, and MXU ID number. * To verify Touch Read reading, use a Touch Read visual reader to display register odometer reading and register ID number. If MXU does not function, check all wire connections, re-do the connections or change battery pack.