2007-2008 Yamaha YFM700 Grizzly Factory Service Manual, Page 471Get this manual
EPS (ELECTRIC POWER STEERING) SYSTEM Fault code No21
Symptom Speed sensor: open or short circuit detectedCheck or maintenance job Check the coupler for any pins that may have pulled out Check the locking condition of the coupler If there is malfunction, repair it and connect the coupler securely Reinstatement method
Order Itemcomponents and probable cause Connections Speed sensor coupler EPS control unit coupler at the wire harness
Open or short circuit in wire harness