| Symptom of malfunction | - |
| Output limit, etc. | Without |
| Malfunction indicator light | Light out |
| Multi information | Inspect the DPR. |
| Possible cause of malfunction | Manual regeneration not completed; manual regeneration switch not functioning; manual regeneration request light not flashing |
Detail
- Check inside the tail pipe and the rear end face of the DPR.
Standard: No soot leakage is allowed.
NO
Replace DPR.YES
Proceed to [2] Checking start of DPR regeneration
- Activate the switch and check start of DPR regeneration.
Standard: Regeneration must be completed.
NO
Go to [3] Inspection itemYES
End of troubleshooting
- Check the accelerator switch, clutch switch, neutral switch and brake switch. Check for unresponsive return of external accelerator and presence of a PTO ON signal.
NO
Inspect individual areas.YES
Proceed to [4] Checking for bulb-out
- Check the DPR light for bulb-out. While the key is kept in the ON position without start of the engine, turn on the DPR switch and check that meter indicator lights and switch lights light up.
NO
Check engagement of the engine harness with the engine ECU.YES
Proceed to [5] DPR forced regeneration
- Perform a DPR forced regeneration.
Standard: Regeneration must not be completed.
NO
Replace DPR.YES
It is likely that a customer forgot to press the switch. Provide an advice and an instruction for switch operation again.
- Confirm the DTC P2463 is inactive
- Start the engine and let it idling condition.
- Verify the DTC P2463 is inactive.
- DTC Clear
- Clear the DTC with Hino DX
- Confirm the same DTC is not reoccurred
- P2463 is reoccur: Return to first process
- Other DTC appear: Refer to concerned Trouble shooting
Complete
