Inspect For Short-Circuit Of Engine Coolant Temperature Sensor Harness; Inspect Disconnection Of Engine Coolant Temperature Sensor Harness - Hino Motors HINO 155 series Workshop Manual

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5
Inspect for short-circuit of the engine coolant temperature sensor harness
D
E66
Do the measurements meet the standard value?
Go to step 6.
6
Inspect disconnection of the engine coolant temperature sensor harness
D
E66
Do the measurements meet the standard value?
Go to step 7.
ENGINE (J05E)/TROUBLESHOOTING
1. Set the starter key to the "LOCK" position.
2. Connect the signal check harness to the engine ECU. (Do not con-
E58
nect the harness to the ECU.)
3. Use the electrical tester to measure the resistance between the
terminals of the engine ECU (signal check harness) and ground.
SHTS021270300228
Starter key: LOCK
YES
1. Connect the engine coolant temperature sensor connector.
2. Use the electrical tester to measure the resistance between the
E58
terminals of the engine ECU (signal check harness).
Starter key: LOCK
SHTS021270300229
YES
Measurement Tester
conditions connections
Engine ECU (sig-
nal check har-
ness)
THW (E66) –
Ground
E5 (E58) – Ground
Repair or replace the harness.
Perform "After-inspection work" of INFOR-
MATION section.
Measurement Tester
conditions connections
Engine ECU (sig-
nal check har-
ness)
THW (E66) –
E5 (E58)
Repair or replace the harness.
Perform "After-inspection work" of INFOR-
MATION section.
Standard values
 
NO
Standard values
20 C {68 F}:
2.59 – 2.32 k
80 C {176 F}:
0.326 – 0.310 k
NO