Expand All| Criterion for determining | Disconnected: 7.5 V or more and 4 V or less for continuous 2 seconds or more |
| Inspection area and possible cause |
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Detail
- Set the starter key to the "LOCK" position and disconnect the 26-pin connector of the air suspension ECU and the rear height sensor connector.
- Measure continuity between the terminals of the 26-pin connector (vehicle harness side) as listed below.
7th terminal 6th terminal 7th terminal 19th terminal 7th terminal Body GND 6th terminal Body GND 19th terminal Body GND Standard value: No continuity
NO
Abnormality in harnessYES
Proceed to [2] Checking of diagnosis code
- Connect the air suspension ECU connector and turn the starter key "ON."
- After erasing the past malfunction memory, check present malfunction codes again.
Standard: Other than abnormality in power supply for rear height sensor
NO
Abnormality in air suspension ECUYES
Abnormality in rear height sensor
- Confirm the DTC C3402 is inactive
- Start the engine and let it idling condition.
- Verify the DTC C3402 is inactive.
- DTC Clear
- Clear the DTC with Hino DX
- Confirm the same DTC is not reoccurred
- C3402 is reoccur: Return to first process
- Other DTC appear: Refer to concerned Trouble shooting
Complete
