1997-2004 Honda Fourtrax Recon TRX250TE/TM Service Manual, Page 341Get this manual
ELECTRIC SHIFT PROGRAM (After 2001TE model) Problem Code 5: ECU Motor Driver Circuit Check the connections of the ECU, motor and related circuit-Abnormal- Loose or poor contact of related circuits
Disconnect the ECU connector (5PBrown)Measure the lIollage between the RedlYel10w terminal and body groundELECTRONIC CONTROL UNIT
Out of range- Loose or poor contact of related circuits Blown fuse Open circuit RedIYellow wire
22P CONNECTOR CONNECTION: RedlYenow +IBody ground 1-STANDARD: 11 minimum
Check for continuity between the Green terminal and body ground CONNECTION: Green 1+- Body ground 1-STANDARD: Conti nuity