1998-2004 Honda Foreman 450 factory service manual, Page 434Get this manual
ELECTRIC SHIFT PROGRAM (ESP) Problem Code 5: ECU Motor Driver Circuit Check the connections of the ECU, motor and related circuitNormal Disconnectthe ECU connector (5PBrown)Measure the voltage between the RedYetlow term inal and body groundOut of ran Loose or poor contact of related circuits Blown fuse Open circuitin RedYellow wire Abnormal Loose or poor contact of related circuits
CONNECTION: RedYellow (+)Body ground STANDARD: 11 minimum
Normal Abnormal
Check for continuity between the Green terminal and body ground