TM-399 (HWH P/N: AP56675) KIT RVC BRIDGE FRT 500
The TM-399 module provides a bridging function between the RV-C (with DSA-252) and J1939 busses. Its hardware is based on the VMS333 board. The 6-pin connector is not used.
It Reads from J1939:
PGN 0xF004 – Engine RPMs
PGN 0xFEF1 – Vehicle Speed
PGN 0xF005 – Gear Selected, Gear Attained
then, Transmits on RV-C:
Chassis Mobility Status (DGN 0x1FFF4)