2008 Yamaha Snowmobiles FX NYTRO Factory Service Manual, Page 297Get this manual

2008 Yamaha Snowmobiles FX NYTRO Factory Service Manual, Page 297

FUEL INJECTION SYSTEM Fault code No43 Symptom Power supply to the fuel injectors and fuel pump is not normal Diagnostic code
relay coupler and engine stop switch couplerRedWhite RedWhite Between the engine stop switch coupler and main switch couplerBrown
Brown Execute the diagnostic mode (code No09)Replace if defectiveReinstatement method Starting the engine and operating it
at idle Open or short circuit in wire harness Malfunction or open circuit in fuel injection system relay When the leads are
disconnected, the voltage check by the code No09 is impossible1Disconnect the fuel injection system relay from the wire harness
and remove it2Connect the pocket tester1) and battery (12 V) to the fuel injection system relay terminals as shownPositive