Inspect The Wire Harness Of The Glow Plug - Hino Motors HINO 155 series Workshop Manual

3

Inspect the wire harness of the glow plug

GL2
GLW1
GLW2
Do the measurements meet the standard value?
Replace the target's glow plug.
Go to step 4.
4
Check the DTC detected (Engine ECU)
Has DTC (P0671, P0672) been detected?
Replace the GCU.
Perform "After-inspection work" of INFOR-
MATION section.
ENGINE (J05E)/TROUBLESHOOTING
1. Disconnect the target's glow plug terminal.
GL1
2. Use the electrical tester to measure the resistance between the
glow control unit vehicle side connector and the target's glow plug
terminal.
Starter key: LOCK
SHTS021270300630
YES
Perform engine warm up. (engine coolant temperature: 80 C {176
1.
F} or more)
2. Stop the engine and set the starter key to the "LOCK" position.
Connect the vehicle to HINO DX Ⅱ .
3.
4. Set the starter key to the "ON" position.
5. Select [Engine] and check if DTC (P0671, P0672) has been
detected.
SHTS021270300631
YES
Measurement Tester
conditions connections
GCU vehicle side
connector – Tar-
get's glow plug
#1 Glow plug:
GL1 – GLW1
#2 Glow plug:
GL2 – GLW2
Repair or replace the harness.
Perform "After-inspection work" of INFOR-
MATION section.
Procedure completed.
Perform "After-inspection work" of INFOR-
MATION section.
2–689
Standard values
Less than 1 
NO
NO