2000-2003 Honda TRX350 Rancher factory service manual, Page 335Get this manual
ELECTRIC SHIFT PROGRAM (ESP: TEFE models) Electric shift does not operate when engaging the reverse gear
Shift the gear manually using the gear change tool
Abnormal
Faulty transmission or gearshift linkage (section and 11)
Check for continuity of the reverse shift switch at the 8P (white) connector (page 21-25)
Abnormal
Faulty reverse shift switch
Disconnect the control unit 22P (gray) connectorCheck for continuity between the 8P connector and 22P connector terminals in the Grayred wire
No continuity
Open circuit in Grayred wire Loose or poor contact of related terminal 8P CONNECTOR