2009-2010 Polaris RZR Factory Service Manual, Page 339Get this manual
ELECTRICAL RELAYS
Operation
Located in the fuse box under the dash, the relays assist with component operation like the fan, fuel pump, and EFI systemThe Fan Relay, controlled by the ECU and Temp Sensor, operates the fanThe EFI Relay, controlled by the ECU, turns on power for components such as the fuel pump, injectors, and ignition coilsThe Rear Diff Solenoid Relay (INT'L Only), controlled by the AWD2WDTURF switch and ECU, operates the differential solenoidFAN RELAY COLOR RedWhite OrangeBlack YellowBlack Red
FAN RELAY
FUNCTION Key-On battery power supply, switched on by key switch, enables power to relayFused 20-Amp power, switched by relay, provides power to Fan MotorECU input to connect relay Fused 20-Amp power to Fan Motor outputFused 20-Amp, constant battery power IN supply for EFI component operation
EFI RELAY
COLOR Orange RedWhite FUNCTION Fused 15-amp, constant battery power IN supply for EFI component operationKey-On battery power supply, switched on by key switch, enables power to relayEFI power outputSwitched by relay when ECU sends signal on the GRYW wire, closing the relaySupplies 15-amp power for ECU-controlled operation of EFI componentsECU input to enable relayThe ECU supplies ground which closes the relay, supplying power to run the fuel pump, injectors, etc