Disconnection Of The Egr Cooler Outlet Temperature Sensor Harness - Hino Motors HINO 155 series Workshop Manual

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7
Inspect disconnection of the EGR cooler outlet temperature sensor harness
D
E45
Do the measurements meet the standard value?
Replace the engine ECU.
Perform "After-inspection work" of INFOR-
MATION section.
8
Inspect the intake air temperature sensor (intake manifold)
Was any failure found?
Clean the sensing unit and install it properly.
If damaged, replace the intake air tempera-
ture sensor (intake manifold).
Perform "After-inspection work" of INFOR-
MATION section.
ENGINE (J05E)/TROUBLESHOOTING
1. Connect the EGR cooler outlet temperature sensor connector.
2. Use the electrical tester to measure the resistance between the
E77
terminals of the engine ECU (signal check harness).
Starter key: LOCK
SHTS021270300476
YES
1. Check the installation of the intake air temperature sensor (intake
manifold).
2. Make sure there is no dirt, damage or clogging in the sensing unit
of the intake air temperature sensor (intake manifold).
YES
Measurement Tester
conditions connections
Engine ECU (sig-
nal check har-
ness)
THG (E45) –
E4 (E77)
Repair or replace the harness.
Perform "After-inspection work" of INFOR-
MATION section.
Go to step 9.
Standard values
20 C {68 F}:
15.4 – 25.9 k
50 C {122 F}:
7.9 – 12.2 k
80 C {176 F}:
4.5 – 6.5 k
NO
NO