Yamaha 2002 TDM900 Service Manual page 453

EAS00811
10.Coolant temperature sensor
S Remove the coolant temperature sensor
from the thermostat assembly.
S Connect the pocket tester (Ω
coolant temperature sensor
S Immerse the coolant temperature sensor in
a container filled with coolant
NOTE:
Make sure that the coolant temperature sen-
sor terminals do not get wet.
S Place a thermometer
S Slowly heat the coolant, then let it cool down
to the specified temperature.
S Check the coolant temperature sensor for
continuity at the temperatures indicated be-
low.
Test Coolant
step temperature
1
20_C
80_C
2
110_C
3
WARNING
S Handle the coolant temperature sensor
with special care.
S Never subject the coolant temperature
sensor to strong shocks. If the coolant
temperature sensor is dropped, replace
it.
Coolant temperature sensor
20 Nm (2.0 mSkg)
Three bond sealock
FUEL INJECTION SYSTEM
1) to the
1 as shown.
2 .
3 in the coolant.
Resistance
2.32 X 2.59 kΩ
0.31 X 0.33 kΩ
0.14 X 0.15 kΩ

10
S Does the coolant temperature sensor oper-
ate properly as described above?
8-53
ELEC
YES
Replace the coolant
temperature sensor.
NO