2010-2011 Yamaha RS Vector / RS Venture Service Manual, Page 334Get this manual

2010-2011 Yamaha RS Vector / RS Venture Service Manual, Page 334

FUEL INJECTION SYSTEM ECU SELF-DIAGNOSTIC FUNCTION The ECU is equipped with self-diagnostic function in order to ensure that
an abnormal signal from sensor while the snowmobile is being driven, the warning light and self-diagnostic warning indicator
on the upper LCD flash to alert the rider that malfunction has occurred and the ECU provides the engine with alternate operating
instructions that are appropriate for the type of malfunctionWhen an abnormal signal is received from sensor, the ECU processes
the specified values that are programmed for each sensor in order to provide the engine with alternate operating instructions
that enable the engine to continue to operate or stop operating, depending on the conditionsSelf-Diagnostic-Function table
Fault code No12 13 Item Crankshaft position sensor Intake air pressure sensor (cylinders #1, #2, and #3) (open or short circuit)
Intake air pressure sensor (cylinders #1, #2, and #3) (hose line) Throttle position sensor (open or short circuit) Throttle