ENGINE (J05E)/TROUBLESHOOTING
2–689
1.
Disconnect the target's glow plug terminal.
2.
Use the electrical tester to measure the resistance between the
glow control unit vehicle side connector and the target's glow plug
terminal.
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 DTC (P0671, P0672) has been
detected.
NO
YES
3
Inspect the wire harness of the glow plug
GL1
GL2
GLW1
GLW2
SHTS021270300630
Measurement
conditions
Tester
connections
Standard values
Starter key: LOCK
GCU vehicle side
connector
–
Tar-
get's glow plug
#1 Glow plug:
GL1
–
GLW1
#2 Glow plug:
GL2
–
GLW2
Less than 1
Do the measurements meet the standard value?
Replace the target's glow plug.
Go to step 4.
Repair or replace the harness.
Perform "After-inspection work" of INFOR-
MATION section.
4
Check the DTC detected (Engine ECU)
SHTS021270300631
Has DTC (P0671, P0672) been detected?
Replace the GCU.
Perform "After-inspection work" of INFOR-
MATION section.
Procedure completed.
Perform "After-inspection work" of INFOR-
MATION section.