CAT guys, I need help with some electrical specs 274-8068 module

Trying to troubleshoot electrical issues with gauges and indicator lights connected to a CAT C7 industrial through a CAT interface module, part number 274-8068. If you can look up some specs or find a machine where it's used, we need to know the voltage coming out of pin 5, connector J2, marked Gage + on the schematic. This is on a Morooka dumper, and apparently both power and ground for the gauges has been lost. Hoping for a workaround other than replacing the $300 module.

Thanks in advance.
Lanway

CAT guys, I need help with some electrical specs 274-8068 module