1997-2004 Honda Fourtrax Recon TRX250TE/TM Service Manual, Page 351Get this manual
ELECTRIC SHIFT PROGRAM (After 2001TE model)
REVERSE SHIFT SWITCH
INSPECTION
Remove the gear positionreverse shift switch 6P connector from the frameDisconnect the gear positionreverse shift switch 6P connector and check for continuity between the GrayRed terminal of the switch side connector and ground
There should be continuity wi the reverse selector operated and no continuity with it released