2004-2006 Honda FourTrax Rancher TRX350TE/TM/FE/FM Service Manual, Page 394Get this manual
LlG HTSM ETERSSWITCHES Turn the ignition switch ON and check th cooling fan motor (U.S.ATM modelopti onall and oil emperature indicatorThe motor should start and indicator should come on when the jumper wire is connectedand the motor should not st art and indicator should not come on when the jumper wire is disconnectedIf the system is normalcheck the oil th ermosensor (page 2119)If it is abnormalcheck as followsExcept U.SATMFM mod els: U.S.ATM FM models :
Fan motor does not start, then all temperature indicator does not come on Disconnect th ignitio control module (ICMI BP connectorCheck for contin uity between the 8P connector Light blue terminal and oil thermosensor connector terminal (Blue)There should be continuityIf there is no contin uity, check for open circui in Light blue and Blue wires between the leM and lh ermosensorIf there is continuity, replace the leM