CO16N-01
B00637
Ohmmeter
P06722
Ohmmeter
-
COOLING
ENGINE COOLANT TEMPERATURE (ECT) SWITCH
CO-27
1187
Author:
Date:
2001 SIENNA (RM787U)
ENGINE COOLANT
TEMPERATURE (ECT) SWITCH
INSPECTION
1.
DRAIN ENGINE COOLANT
2.
REMOVE ECT SWITCHES
3.
INSPECT NO.1 ECT SWITCH
(a)
Using an ohmmeter, check that there is no continuity be-
tween the switch terminals when the coolant temperature
is above 98
°
C (208
°
F).
If there is continuity, replace the switch.
(b)
Using an ohmmeter, check that there is continuity be-
tween the switch terminals when the coolant temperature
is below 88
°
C (190
°
F).
If there is no continuity, replace the switch.
4.
INSPECT NO.2 ECT SWITCH
(a)
Using an ohmmeter, check that there is continuity be-
tween the switch terminals when the coolant temperature
is above 94
°
C (201
°
F).
(b)
Using an ohmmeter, check that there is no continuity be-
tween the switch terminals when the coolant temperature
is below 83
°
C (181
°
F).
If continuity is not as specified, replace the switch.
5.
REINSTALL ECT SWITCHES
6.
REFILL WITH ENGINE COOLANT
Содержание RM787U
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