Hino Motors HINO 155 series Workshop Manual page 291

3
Inspect the engine coolant temperature sensor 1 unit
E
THW
Do the measurements meet the standard value?
Go to step 4.
4
Inspect the engine coolant temperature sensor 1 power supply
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 1 connector.
3. Use the electrical tester to measure the resistance between the
terminals of the engine coolant temperature sensor 1.
Starter key: LOCK
SHTS021270300232
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 1 vehicle side con-
nector.
Starter key: ON
SHTS021270300233
YES
Measurement Tester
conditions connections
Engine coolant
temperature sen-
sor 1
THW – E
Replace the engine coolant temperature sen-
sor 1.
Perform "After-inspection work" of INFOR-
MATION section.
Measurement Tester
conditions connections
Engine coolant
temperature sen-
sor 1 vehicle side
connector
THW – E
Go to step 5.
2–255
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