ENGINE (J05E)/TROUBLESHOOTING
2–194
1.
Connect the signal check harness to the engine ECU.
2.
Set the starter key to the "ON" position.
3.
Use the electrical tester to measure the voltage between the termi-
nals of the engine ECU (signal check harness).
NO
YES
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 (P0097 or P0098) has been
detected.
NO
YES
6
Inspect the sensor power supply
D
E76
E63
SHTS021270300178
Measurement
conditions
Tester
connections
Standard values
Starter key: ON
Engine ECU (sig-
nal check har-
ness)
THIA (E63)
–
E2 (E76)
4.5
–
5.5 V
Do the measurements meet the standard value?
Go to step 7.
Replace the engine ECU.
7
Check the DTC detected (Engine ECU)
SHTS021270300179
Has DTC (P0097 or P0098) been detected?
Replace the engine ECU.
Perform "After-inspection work" of INFOR-
MATION section.
Procedure completed.
Perform "After-inspection work" of INFOR-
MATION section.