2000-2003 Honda TRX350 Rancher factory service manual, Page 346Get this manual
ELECTRIC SHIFT PROGRAM (ESP) Problem Code 10: Ignition Pulse Generator System Check the connection of the ECU, ignition pulse generator and related circuitAbnormal Loose or poor contact of related circuit
Check the connections of the ground cables
Abnormal
Loose or poor contact of ground cable(s)
Disconnect the ECU connector (22PBrown) and pulse generator connector (5P)Check for continuity of the BlueYellow wire between the ECU and pulse generator connector terminalsCONNECTION: BlueYellow) BlueYellow) STANDARD: Continuity