1998-2004 Honda Foreman 450 factory service manual, Page 399Get this manual
LIGHTSMETERSSWITCHES Disconnect the cooling fan control unit 4P connectorGround the Blue red wire terminal of the wire harness side using the jump wire with the ignition switch on Standard: Oil warning indicator comes on Normal
Abnormal
Loose or poor contact of related terminal Open circuit in Bluered wires between the combination meter and fan control unit Faulty speedometer
Disconnect the cooling fan control unit 4P connectorCheck for continuity between the body ground and green of the wire harness side with the ignition switch offI
Continuity
Faulty cooling fan control unit
No continuity Open circuit in ground wire Cooling fan motor does not start, when the oil is over the specified temperatureShort the BlackBrown wire terminal and Blue wire terminal of the wire harness side using the jump wire with the igniton switch onFan motor start
Fan motor does not start Faulty cooling fan motor
Disconnect the cooling fan control unit 2P connectorCheck for resistance between the Light blue wire terminal and ground of the wire harness side Standard: 10 kn (25"C77' F) NOTEResistance will be lower al high engine temperature Normal Disconnect the cooling fan control unit 4P connectorCheck voltage between the Black Brown wire terminal and ground of the wire harness side with the ignition sw itch onStandard: Battery voltage Normal Disconnect the cooling fan control unit 2P connectorCheck voltage between the Pink wire terminal and ground of the wire harness side with the ignition switch on Standard: Battery voltage Normal (Continued on the following page)