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All| ABS light indication | 4-4 |
| Malfunction code | 4-4 (1) |
| Description of malfunction | 24 V short-circuit in the wheel sensor (left, rearward) harness |
| Vehicle status | Not actuated left rear wheel ABS |
| Possible cause | 24 V short-circuit in harness between ECU and the wheel sensor |
| ECU terminals subject to inspect | The 8th and 9th terminals of 18 pin connector |
Detail
- Turn the starter key "ON".
- Measure voltage between the 8th terminal of the ABS ECU 18 pin connector and the 13th terminal of the 15 pin connector.
(Keep the connectors as assembled to the ECU.)
Standard value: 1 V or less
- This diagram shows the connectors as viewed from the connecting face.
NO
24 V short-circuit in harness between ABS ECU and the wheel sensor (left, rearward)
Inspect the harness.YES
Normal now. Short-lived 24 V short-circuit is likely to have occurred.
Inspect the harness.
- Confirm the DTC P0303 is inactive
- Start the engine and let it idling condition.
- Verify the DTC P0303 is inactive.
- DTC Clear
- Clear the DTC with Hino DX
- Confirm the same DTC is not reoccurred
- P0303 is reoccur: Return to first process
- Other DTC appear: Refer to concerned Trouble shooting
Complete
