D439E Service Manual 4. Fuel system
187
Inspection Method Using a Multi-Tester
1. Remove engine coolant temperature sensor from
the coolant passage of the cylinder head.
2. Immerse the temperature sensing part of engine
coolant temperature sensor into the hot water and
check the resistance.
1) Engine coolant temperature sensor
Temperature (℃) Resistance (KΩ)
-40 48.14
-20 14.13~16.83
0 5.790
20 2.31~2.59
40 1.148
60 0.586
80 0.322
100 0.1884
110 0.1451~0.1491
120 0.1163
2) Gauge unit
Temperature (℃) Resistance (KΩ)
60 125
85 42.6~54.2
110 22.1~26.2
125 15.2
3. If the measurement shows great difference from
the specification replace the sensor
Installation
1. Apply locktite 962T or the equivalent around the
bolt.
2. Install coolant temperature sensor and tighten
with specified torque Specification Torque : 3.0 ~
4.0 kgf.m
3. Connect the harness connector correctly.