Inspect The Thermostat - Hino Motors HINO 155 series Workshop Manual

3
Inspect the engine coolant temperature sensor unit
E
THW
Do the measurements meet the standard value?
Go to step 4.
4

Inspect the thermostat

Was any failure found?
Replace the thermostat.
Perform "After-inspection work" of INFOR-
MATION section.
ENGINE (J05E)/TROUBLESHOOTING
1. Set the starter key to the "LOCK" position.
2. Disconnect the engine coolant temperature sensor connector.
3. Use the electrical tester to measure the resistance between the
terminals of the engine coolant temperature sensor.
Starter key: LOCK
SHTS021270300256
YES
1. Check if the thermostat is damaged due to the incursion of foreign
substances or if the spring is damaged.
YES
Measurement Tester
conditions connections
Engine coolant
temperature sen-
sor
THW – E
Replace the engine coolant temperature sen-
sor.
Perform "After-inspection work" of INFOR-
MATION section.
Go to step 5.
2–279
Standard values
20 C {68 F}:
2.59 – 2.32 k
80 C {176 F}:
0.326 – 0.310 k
NO
NO