1998-2004 Honda Foreman 450 factory service manual, Page 427Get this manual
ELECTRIC SHIFT PROGRAM (ESP) Diagnosis table
Gear indicator blinks Check part and system No problem EUC (writing and recoding circuit) ES shift switch system lup and down) Ang le sensor system Gear position switch system ECU motor driver circuit ECU fai l-safe relay circuit ECU voltage convent circu it Angle sensor system Angle sensor system Ignition pu lse generator system Gear position switch system orECU
Probable fa ulty part No problem ECU Shift switch or related wire harness or ECU Angle sensor (abnormary installed) or related wire harness or ECU Gear position switch or related wire harness or ECU ECU ECU ECU Angle sensor or control motor or related wire harness Angle sensor (short or open) or related ire harness rECU Ignition pulse generator or related wire harness Gear position switch or related wire harness or ECU