2006-2008 Polaris Snowmobiles FS/FST Service Manual., Page 80Get this manual
EFIIgnition Systems Ignition Coil Circuit
The ignition coil circuit and ignition coils are responsible for providing spark energy to the spark plugsPower to each ignition coil is supplied by the ignition relayThe EFI relay supplies power to the ignition relay via 20A fuse-protected circuitThe ECU controls each ignition coil by opening each control circuit, thus collapsing the field inside each coilThe secondary coil within each coil pack is diode protected to prevent activation arcing when the ECU closes each control circuitThe diode prevents testing the secondary coil with an ohmmeter