Error code News Shared knowledge

Hino P060C Fault Code: DCU Abnormality

30/11/2024

Mục lục

Technical description

DCU internal chip error is being checked in DCU

DCU internal malfunction has been detected

DTC Detection Condition:

Starter switch ON

Judgment Criteria:

DCU internal chip errors are judged by DCU itself

After having restored to the normal conditions

Symptoms on the Vehicle Due to Backup Control (Fail Safe Function):

NOx reduction function is prevented.

Check if the battery voltage is in the normal range.

DCU malfunction

Connect the vehicle to the diagnostic tool
Set the starter switch to the “ON” position
Select [DCU] and check if the diagnostic tool is communicating with the DCU
Erase the malfunction history
Set the starter switch to the “LOCK” position
Check if the DCU main relay is OFF in the diagnostic tool menu. (This cuts off the communication between the diagnostic tool and the DCU)

NOTE: The main relay turns OFF 1 minute after the exhaust gas temperature (SCR inlet) drops below 200°C (392°F)

Has DTC P060C been detected?

Yes	Replace the DCU. (After replacing the DCU, perform a DPR forced regeneration.) Clear all past DTCs. Check if the DTC is stored after test drive.
No	Erase the malfunction history and recheck the DTC. Clear all past DTCs. Check if the DTC is stored after test drive.