Engine Oil Temperature (Eot) Sensor - Honda 2005-2008 RX500 FA Service Manual

'61HN252' by American Honda Motor Co. - Page 458 of 540
[2005-2008] [TRX500 FA/FGA]
LIGHTS/METERS/SWITCHES
ENGINE OIL TEMPERATURE (EOT)
SENSOR
22-20
1 of 1
If the motor does not start, remove the right front
mud guard and right inner fender (page 2-9),
disconnect the fan motor 2P connector. Measure the
voltage between the harness side Blue wire termi-
nal (+) and ground ().
There should be battery voltage with the ignition
switch ON.
If there is no voltage, check for open circuit in
Blue wire.
If there is voltage, check for open circuit in
Green/black wire between the ECM and fan
motor. If it is OK, the fan motor is faulty.
INSPECTION
Remove the following:
right front mud guard (page 2-8)
right inner fender (page 2-9)
Disconnect the connector and remove the engine oil
temperature (EOT) sensor.
Suspend the EOT sensor in a pan of engine oil on an
electric heating element and measure the resistance
through the sensor as the oil heats up.
· Soak the EOT sensor in oil up to its threads with
at least 40 mm (1.57 in) from the bottom of the
pan to the bottom of the sensor.
· Keep the temperature constant for 3 minutes
before testing. A sudden change of temperature
will result in incorrect readings. Do not let the
thermometer or EOT sensor touch the pan.
150°C (302°F)
Temperature
306 340 Ω
Resistance
Replace the EOT sensor if it is out of specifications
by more than 10% at any temperature listed.
Install the EOT sensor with a new sealing washer
and tighten it.
TORQUE: 18 N·m (1.8 kgf·m, 13 lbf·ft)
Connect the EOT sensor connector.
Install the removed parts in the reverse order of
removal.
http://services.honda.com/ServiceManual/SVC_MNL/61HN253/61HN2...
and
FAN MOTOR
CONNECTOR
CONNECTOR
170°C (338°F)
EOT SENSOR
209 231 Ω
CONNECTOR
EOT SENSOR
THERMOMETER
WASHER
EOT SENSOR
3/9/2008 11:24 PM