This instruction show you guide on how to repair HINO 600 series 15MY DCU 500K P208D malfunction of DEF pump motor high trouble.
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Procedures:
Step 1:Inspect the DEF pump connector
Check the connection of the DEF pump connector (Looseness and poor contact).
Was any failure found?
Yes,Connect securely , repair if needed.
Per form”After-inspection work” of INFORMATION section.
No,Go to step 2
Step 2:Inspect the DCU 86Pconnector
Check the connection of the DCU 86P connector (Looseness and poor contact).
Yes,Connect securely , repair if needed.
Per form”After-inspection work” of INFORMATION section.
No,Go to step 3
Step 3:Check the DEF pump wire harness
Set the starter switch to the “LOCK” position.
Disconnect the DCU 86P connector and the DEF pump connector.
Connect the signal check harness and use the electrical tester to measure the resistance between the DEF pump and each terminal of the DCU 86P vehicle-side connector.
Do the measurements meet the standard value?
Yes,replace the DEF pump,and go to step 4
No,repair or replace the harness.
Perform”After-inspection work” of INFORMATION section.
Step 4:Check the DTC detected (DCU) Connect the DEF pump connector.
Set the starter switch to the “LOCK” position.
Connect the vehicle to HINO DXⅡ.
Set the starter switch to the “ON” position.
Select [DCU] and check if P208D has been detected.
Has DTC 208D been detected?
Yes,replace the DCU(After replacing the DCU,perform a DPR forced regeneration)
Perform”After-inspection work” of INFORMATION section.
No,Procedure completed
Perform”After-inspection work” of INFORMATION section.
More case for HINO please refer to:HINO Trouble Repair.