2008 Polaris Sportsman 500 EFI/X2/Touring/500 H.O. Service Manual, Page 364Get this manual
ELECTRICAL Starter Lockout Troubleshooting- EFI Models
The starter lockout is controlled by the ECUPin #52 of the ECU senses the transmission signal and determines if the switch is in Neutral or ParkWhen the conditions are met, the ECU will activate SSCB #2 Pin 'N' to ground the starter solenoidPin #35 of the ECU senses when the brake is applied and activates Pin #2 pin to ground the solenoidThe ECU will allow starting in Neutral or Park without the brake appliedApplying the brake overrides this system and allows starting regardless of transmission shift positionItems to check when diagnosing no-start condition are: Transmission switch for proper function Starter solenoid for proper function Brake switch for proper function Wire harness, loose connectionspins (including the ECU) leading to and from these components Proper ground to frame Proper voltage to solenoid Should all these items be found in working order, the ECU may be at fault