1998-2004 Honda Foreman 450 factory service manual, Page 425Get this manual
ELECTRIC SHIFT PROGRAM (ESP) CONTROL MOTOR TURNS WHEN THE SHIFT SWITCH IS PUSHED DOWN WITH THE REVERSE SELECTOR NOT OPERATED Inspect the following before diagnosing the system- Make sure the battery is fully charged and in good conditon- Blown main (30Almotor (30A) or sub fuse (Light (15A)ignition (lOA)) Abnormal
Inspect the reverse shift switch (page 21-30)Normal Disconnect the control unit l6P and reverse shift switch 2P (red) connectorCheck for continuity between the control unit 16P connector and reverse shift 2P (red) connector terminal of the wire harness side