| Symptom of malfunction | DPR regeneration is disabled. |
| Output limit, etc. | Without |
| Malfunction indicator light | Light out |
| Multi information | Engine system failure |
| Possible cause of malfunction | Malfunction of exhaust temperature sensor (Lo) (2nd from upstream) located before DPF |
Detail
- Set the starter key to the "LOCK" position and connect the signal check harness.
- Disconnect the signal check harness connectors from the ECU and measure resistance between the terminals V46 and V69.
ECU terminal No. Description of terminal
Temperature in measurement (ºC {ºF}) Resistance
NO
Go to [2] Measuring resistance between sensor terminals.
YES
Fault in engine ECU, fault in ECU connectors, short-circuit in harness
- Disconnect the exhaust temperature sensor (located before DPF) connector.
- Measure resistance between the 1st and 2nd terminals of the exhaust temperature sensor (located before DPF) connector (component side).
Temperature in measurement (ºC {ºF}) Resistance
NO
Fault in exhaust temperature sensor (located before DPF)
YES
Disconnection of harness, fault in connector
- Confirm the DTC P2032 is inactive
- Start the engine and let it idling condition.
- Verify the DTC P2032 is inactive.
- DTC Clear
- Clear the DTC with Hino DX
- Confirm the same DTC is not reoccurred
- P2032 is reoccur: Return to first process
- Other DTC appear: Refer to concerned Trouble shooting
Complete
