Toyota Celica 2005, Руководство по ремонту

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S01196
S01699
30
20
10
5
3
0 20 40
0.1
1
0.3
0.2
0.5
2
60 80 100 − 20
( − 4) (104) (140) (176) (32) (68) (212)
A21258
Ohmmeter
Acceptable
TEMPERATURE _ C ( _ F)
RESIST
ANCE K
Ω
− DIAGNOSTICS ENGINE (2ZZ − GE)
DI − 471
2005 CELICA (RM1131U)
18 Check engine coolant temperature sensor (See page SF − 67).
PREPARATION:
Remove the engine coolant temperature sensor.
CHECK:
Measure the resistance between the terminals of the engine
coolant temperature sensor.
OK:
Tester Connection Temperature Specified Condition
1 − 2
20 _ C (68 _ F) 2.32 to 2.59 k Ω
80 _ C (176 _ F) 0.310 to 0.326 k Ω
NOTICE:
If you check the engine coolant temperature sensor in wa-
ter, be careful not to allow water to go into the terminals. Af-
ter checking, dry the sensor.
HINT:
Alternate procedure: Connect an ohmmeter to the installed en-
gine coolant temperature sensor and read the resistance. Use
an infrared thermometer to measure the engine temperature in
the immediate vicinity of the sensor. Compare these values to
the resistance/temperature graph. Change the engine temper-
ature (by warming up or cooling down) and repeat the test.
(a)
Reinstall the engine coolant temperature sensor.
NG Replace engine coolant temperature sensor
.
OK
19 Check result of step 4 switch step by number of misfire cylinder.
High misfire rate cylinder Proceed to
1 or 2 cylinders A
more than 3 cylinders B
B Go to step 5.
A
Check intermittent problems (See page
DI − 295).
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