2006-2008 Polaris Snowmobiles FS/FST Service Manual., Page 294Get this manual
Chassis Electrical System Throttle Safety System
The ECU monitors the position of the throttle lever and determines if the lever is open or closed by the sensor signal returned by the throttle safety circuitThe ECU then compares the returned signal to the signal returned by the Throttle Position Sensor (TPS)If the ECU determines that the throttle flipper is closed "released", but that the TPS is not at idle position, the ECU will determine that there is potential problem with the throttle cable and enter engine-RPM limitvehicle speed mode When the throttle lever is closed, the resistance between the switch's BRNW and BLUE wires should be approximately 2150 Once the throttle flipped is pushed, the resistance between the BRNW and BLUE wires should be approximately 6810 Pushing the safety slap switch "down" while the engine is running will open the ignition relay coil, thus turning off the ignition system