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9-3-4 ENGINE CASE TEMPERATURE SENSOR
1 . Disconnect the connector from the engine case
temperature sensor .
2 . Measure the resistance with an ohmmeter across
the terminal
1
and
2
of engine case temperature
sensor
3 . If the measurement is not indicated, the sensor is
faulty .
9-3-5 INJECTOR
1 . Disconnect the connector of injector (2P) .
2 . Measure the resistance between the terminals of the
injector with resistance range of circuit tester .
3 . If the measurement is not within factory
specification, replace the injector .
4 . Check the state of the harness and if it is abnormal,
replace it .
5 . Turn the key switch to the ON position .
6 . Measure the voltage between the terminal 2 of
injector connector and body earth with voltage range
of circuit tester (harness side) .
7 . Measure the resistance between the terminal 1 of
injector connector and ECU terminal 101 with resistance
range of circuit tester (harness side) .
8 . When the measurements are the table value below the ECU is normal . The injector is damaged, then
replace it .
9 . When the measurements are out of the table value below, the ECU is damaged, then replace it .
Connector (harness side)
Connector (harness side)
Engine Case Temperature Sensor
Terminal 1 (+)
Terminal 2 (-)
Injector
Gray Connector
101
110
109
118
101
Terminal 1 (-)
Terminal 2 (+)
Injector connector
(harness side)
Fig .9-5
Fig .9-6
Harness voltage
Terminal 1- Body earth
Approx . 5 V
Harness resistance
Terminal
2
- ECU terminal
101
0Ω
Resistance
(Sensor terminal
1
-
terminal
2
)
Reference value
Approx. 10 kΩ
at 25°C (77°F)
Injector resistance
Factory
specification
Approx .
11.5 to 12.5 Ω
NOTE ;
• The injector can not be replaced separately.
• When the injector is in failure, replace throttle body.
• When replacing the throttle body, the ECU also needs to be replaced.
