Inspect The Engine Coolant Temperature Sensor Unit; Actuation Power Supply Wire Harness Of Engine Coolant Temper. Sensor - 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 actuation power supply wire harness of the engine coolant temperature sensor
THW
E
Do the measurements meet the standard value?
Go to step 7.
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
SHTS021270300226
YES
1. Set the starter key to the "ON" position.
2. Use the electrical tester to measure the voltage between the termi-
nals of the engine coolant temperature sensor vehicle side con-
nector.
Starter key: ON
SHTS021270300227
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.
Measurement Tester
conditions connections
Engine coolant
temperature sen-
sor vehicle side
connector
THW – E
Go to step 5.
2–249
Standard values
20 C {68 F}:
2.59 – 2.32 k
80 C {176 F}:
0.326 – 0.310 k
NO
Standard values
4.5 – 5.5 V
NO