Inspection Procedure: P1459 - Hino Motors HINO 155 series Workshop Manual

INSPECTION PROCEDURE: P1459

1
Check the DTC detected (Engine ECU)
Has a DTC other than P1459 been detected?
Go to the diagnostic procedure of a related
DTC.
2 Inspect the EGR valve
Was any failure found?
Remove foreign substances and clean the
EGR valve.
Replace the EGR valve if it is damaged.
Perform "After-inspection work" of INFOR-
MATION section.
ENGINE (J05E)/TROUBLESHOOTING
1. Set the starter key to the "LOCK" position.
Connect the vehicle to HINO DX Ⅱ .
2.
3. Set the starter key to the "ON" position.
4. Select [Engine] and check if any DTC other than P1459 has been
detected.
SHTS021270300702
YES
1. Check the valve sealing face and gas passageway for soot accu-
mulation and damage due to foreign substances.
2. Check if there is soot obstructing the exhaust gas passageway
inlet or outlet.
YES
NO
Go to step 2.
NO
Go to step 3.
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