Specifications

CONTROL SYSTEM
F53
F
ENGINE COOLANT TEMPERATURE (ECT) SENSOR REMOVAL/INSTALLATION
A6E394018840W01
Warning
•
••
• When the engine is hot, it can badly burn. Turn off the engine and wait until it is cool before
removing the ECT sensor.
1. Drain the engine coolant. (See E3 COOLING SYSTEM SERVICE WARNINGS.)
2. Disconnect the ECT sensor connector.
3. Remove the ECT sensor.
4. Install in the reverse order of removal.
Tightening torque
1014 N·m
{1.021.42 kgf·m, 7.3810.32 ft·lbf}
5. Refill the engine coolant. (See E3 COOLING
SYSTEM SERVICE WARNINGS.)
End Of Sie
ENGINE COOLANT TEMPERATURE (ECT) SENSOR INSPECTION
A6E394018840W02
Note
• Perform the following inspection only when directed.
ECT Sensor Resistance Inspection
1. Drain the engine coolant. (See E3 COOLING SYSTEM SERVICE WARNINGS.)
2. Remove the ECT sensor (located above the starter).
3. Place the ECT sensor in water with a thermometer, and heat the water gradually.
4. Measure the resistance between the ECT sensor terminals A and B using an ohmmeter.
• If not as specified, replace the ECT sensor.
• If the ECT sensor is okay, but ECT PID value is out of specification, perform the Circuit Open/Short
Inspection.
Specification
Circuit Open/Short Inspection
1. Disconnect the PCM connector. (See F43 PCM
REMOVAL/INSTALLATION.)
2. Inspect the following wiring harnesses for open or
short. (Continuity check)
Open circuit
• If there is no continuity, the circuit is open. Repair
or replace the harness.
 ECT sensor terminal A (harness-side) and
PCM terminal 1M (harness-side)
 ECT sensor terminal B (harness-side) and
PCM terminal 2H (harness-side)
Short circuit
• If there is continuity, the circuit is shorted. Repair
or replace the harness.
 ECT sensor terminal A (harness-side) and power supply
 ECT sensor terminal A (harness-side) and body GND
A6E3940W010
Water temperature (°
°°
°C {°
°°
°F}) Resistance (kilohms)
20 {68} 35.4839.20
70 {158} 5.075.60
80 {176} 3.654.02
A6E3940W011