2011 Arctic Cat 350/425 ATV Service Manual, Page 143Get this manual
NOTE: If battery voltage is not shown in any test, inspect the fuses, battery, main wiring harness, connectors, or the left handlebar switch Voltage (Running Lights)
1Release the wire connector from the frame; then release and separate the connectorsNOTE: Perform this test on the wiring harness side of the connectors
2Connect the black tester lead of the meter to the black wire; then with the tester in the DC Volts position, connect the red tester lead to the brownblack wire3Turn the ignition switch to the LIGHTS positionThe meter must show battery voltageNOTE: If the meter does not show voltage, inspect the LIGHTS fuse, battery connections, or troubleshoot the main wiring harness
TAILLIGHTSBRAKELIGHTS Voltage (Taillights)
NOTE: Perform this test on the main harness side of the connectorAlso, the ignition switch should be in the LIGHTS position