2010-2012 PRO-RIDE RUSH Switchback RMK Service Manual, Page 406Get this manual
Battery and Electrical Systems HANDTHUMB WARMERS
Thumb Warmer Diagnostics
The thumb warmer on all Polaris snowmobiles is thermistor-type warming element padThis means its resistance will change based on temperatureMOLEX CONNECTOR
Thumb Warmer Resistance Checks
CIRCUIT (Wire Color) LOW (ORANGEGRAY) to GROUND (BROWN) HIGH (WHITEGRAY) to GROUND (BROWN) LOW or HIGH to CHASSIS (SHORT) RESISTANCE ROOM TEMP(6820 C)