1995-2000 Honda FourTrax 300 300FW TRX300 TRX300FW TRX service manual., Page 339Get this manual
LIGHTSSWITCHES OIL WARNING SYSTEM
When the
switch is turned on, the oil warning indicator should come on tor lew 98COnds Ihen go oft
011 warning Indicator does not 110 ot! tDIsconnect the alarm unit ::OP oon!"Clo and check 10 resistance between BuIfI WIre tarmonal and orouod 01 the WIre hamess sideR"",stance shoold be about 1010 wI1tI the engi"" cold (2SCJ77F)NOTER,;istanoe will be Iowlr at high ,"'giM
temper3IUr8$
ABNORMAL SIoI1 in BolA wira Check tho oil temperature M!flSOf (page 20-6)
1NORMAl
D;sconnect tile alarm unit 4P connector and check lor continuity between BrlR and wire terminals 01 lhe wira harnass slda with the swilch OFFNO CONTINUITY Faulty alarm unit CONTINUITY Short
on BrIR WIre
Oil warning Indicat or don come on lor 1_ ae:onda, when the ignition switc I, tu rned 00
I 1Check lor bumed-oot indicator bulb