2010 Polaris Sportsman 850 Service Manual, Page 68Get this manual
ELECTRONIC FUEL INJECTION Verify TPS Tester Reference Voltage volt reference voltage from the TPS Tester harness is required for the TPS test to be accurateRefer to the instructions provided with the TPS Tester (2201519-A) or follow the bullet point steps below to check reference voltageReference Voltage Test: Insert black voltmeter probe into the test port as shown Insert red voltmeter probe into the test port as shown and verify the voltage reads 4.99-5.01 VdcIf the reading is low, replace the volt battery3
Checking TPS Reading
12Remove the seat and upper left-hand side panel (see Chapter "Seat and Side Panels")Assemble the TPS Tester according to the instructionsRefer to "TPS TesterRegulator" for proper set-up and testingVerify the volt tester battery is newDisconnect vehicle harness from TPS