2007-2008 Polaris IQ Snowmobiles Service Manual, Page 303Get this manual
Battery and Electrical Systems DIAGNOSTIC PLUGS
FUEL PUMP PRIME PLUG CHASSIS POWER-UP (2- WIRE CONNECTOR)
ELECTRONIC REVERSE (PERC)
Overview
Some models are equipped with Polaris electric reverse control (PERC)The operation of the electronic reverse system is achieved by automatically reversing the engine rotation with push of buttonWhen in reverse you will have an indicator light that will flash, notifying you that the machine is in the reverse modeThe design of the clutches are matched to the specifications that will allow the backwards rotation of the engine to move the sled in reverseTo get back to forward is as easy as pushing the button again