2008 Yamaha Snowmobiles FX NYTRO Factory Service Manual, Page 292Get this manual

2008 Yamaha Snowmobiles FX NYTRO Factory Service Manual, Page 292

FUEL INJECTION SYSTEM Fault code No25 Symptom Intake air pressure sensor (cylinder #1): open or short circuit detected Diagnostic
securelyRepair or replace if there is an open or short circuitBetween the intake air pressure sensor (cylinder #1) coupler
and ECU couplerPinkBlack PinkBlack BlackBlue BlackBlue Blue Blue Execute the diagnostic mode (code No04)Replace if defective1Connect
the pocket tester (DC 20 V) to the intake air pressure sensor (cylinder #1) coupler terminals as shownPositive tester probe
PinkBlack Negative tester probe BlackBlue Reinstatement method Setting the engine stop switch to "RUN" and turning the main
switch on Defective intake air pressure sensor (cylinder #1)PB BL L 2Turn the main switch on3Measure the intake air pressure