Table of Contents
Advertisement
EAS00812
6. Thermo unit
S Remove the thermo unit from the thermostat
housing.
S Connect the pocket tester (Ω
1
mo unit
as shown.
S Immerse the thermo unit in a container filled
with coolant
2
.
NOTE:
Make sure the hermo unit terminals do not
get wet.
S Place a thermometer
S Slowly heat the coolant, and then let it cool to
the specified temperature indicated in the
table.
S Check the thermo unit for continuity at the
temperatures indicated in the table.
Thermo unit resistance
80_C: 3.4 kΩ X 4.0 kΩ
105_C: 1.6 kΩ X 1.9 kΩ
7. Coolant temperature warning light
S Check the LED for continuity.
8. Voltage
S Connect the pocket tester (DC 20 V) to the
meter coupler.
Tester (+) lead ! Brown lead
Tester (–) lead ! Black lead
S Turn the main switch to "ON".
S Check the voltage (12 V).
1) to the ter-
in the coolant.
3
GOOD
CONDITION
CONTINUITY
1
2
MEETS
SPECIFICATION
:
COOLING SYSTEM
WARNING
Handle the thermo unit with special care.
Never subject the thermo unit to strong
shocks. If the thermo unit is dropped, re-
place it.
BAD CONDITION
Replace the thermo unit.
NO CONTINUITY
Replace the meter assembly.
OUT OF SPECIFICATION
The wiring circuit from the main switch to me-
ter coupler is faulty, repair it.
–64–
ELEC
Hide quick links:
Advertisement
Table of Contents
