ENGINE (J05E)/TROUBLESHOOTING 2–599
1. Connect the exhaust gas temperature sensor (DOC1 inlet) con-
nector.
2. Use the electrical tester to measure the resistance between the
terminals of the engine ECU (signal check harness).
1. Perform engine warm up. (engine coolant temperature: 80 C {176
F} or more)
2. Stop the engine and set the starter key to the "LOCK" position.
3. Connect the vehicle to HINO DX Ⅱ .
4. Set the starter key to the "ON" position.
5. Select [Engine] and check if the DTC (P0545 or P0546) has been
detected.
6
Check disconnection in wire harness of exhaust gas temperature sensor (DOC1 inlet)
Measurement
conditions
Tester
connections
Standard values
Starter key: LOCK
Engine ECU (sig-
nal check har-
ness)
THO1 (E43) –
E3 (E58)
20 C {68 F}:
13.7 – 29.8 k
50 C {122 F}:
7.13 – 13.7 k
80 C {176 F}:
4.1 – 7.13 k
Do the measurements meet the standard value?
Go to step 7. Repair or replace the harness.
Perform "After-inspection work" of INFOR-
MATION section.
7
Check the DTC detected (Engine ECU)
Has DTC (P2470 or P2471) been detected?
Replace the engine ECU.
Perform "After-inspection work" of INFOR-
MATION section.
Procedure completed.
Perform "After-inspection work" of INFOR-
MATION section.
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