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*1 Additional information for inspections with HINO-DX
Light cases of DPR clogging can be treated without removing the housing.
The procedure is shown below.
The "DPR STATUS" can be checked with the HINO-DX, and when only the "DPR clogged warning level flag" is "ON", regener-
ation processing can be performed with the DPR SW or the tool.
Confirmation method:
Use the HINO-DX, perform System Fix, then open screens in the order of Check function (E) DPR Reset Confirmation (D)
DPR Status, and confirm that "status" is "ON" for the item "DPR clogged warning level flag" of the DPR Status. Only when
this is "ON" can manual regeneration by pressing the DPR manual regeneration switch or manual regeneration by HINO-DX
setting be performed.
.
1.
Press the DPR Manual regeneration switch. When manual regeneration has started, wait until regeneration has been
completed and confirm that the engine check lamp has gone out.
2.
If the operation by means of the DPR SW is not accepted, connect the HINO-DX to the vehicle, record the "HINO-DX
Report", erase the trouble code, and then perform manual regeneration according to the following procedure. When man-
ual regeneration has started, wait until regeneration has been completed and confirm that the engine check lamp has
gone out.
Confirmation method:
Use the HINO-DX, perform System Fix, and then continue in the order of Check Function (E) DPR Reset Confirmation
(D) Manual regeneration (E).
.
Recording method for the "HINO-DX Report":
a.
Connect the HINO-DX to the vehicle and execute System Fix.
b.
Click the Equipment DTC button and then click Load (L).
c.
Click System Fix (W) after the DTC code has been put out.
d.
Enter Work memorandum (information), Customer Name, License Plate, and Mileage information at the pop-up screen.
e.
Click the OK button.
f.
Click the Close Work (C) button of the pull-down menu File (F) for Close Work.
g.
Click Past work information (O) of the File (F) pull-down menu.
h.
Select the files when System Fix was performed in items d and e from the pop-up screen and click the Print button.
i.
Click the Print button on the pop-up screen.
j.
When the HINO-DX Report image screen appears, click the Print button.
k.
Click the Printer Name pull-down button on the Print pop-up screen.
l.
Select Microsoft Office Document Image Writer from the Printer pull-down menu.
m.
Click the OK button.
n.
Save the data in any folder (example: Save to the desktop).
o.
When the folder is clicked, the contents of the HINO-DX Report can be confirmed and sent by e-mail or can be printed
out.
3.
After completion of manual regeneration by (1) or (2), keep the engine running and wait for the exhaust temperature (IN
side) to drop. Confirm a drop to 200 degrees or lower and then inspect the exhaust gas backpressure according to the fol-
lowing procedure.
Confirmation method:
Execute in the order of DPR Reset Confirmation Backpressure Check (D) Start (E).
4.
Confirm that the values of the exhaust gas backpressure are at or below the standard.
Standard:
Engine model
5.
When the confirmation result in (4) is at or below the standard, DPR manual regeneration and the confirmation work have
been completed. Click "Stop" on the DPR Backpressure Check screen to end the work with the HINO-DX.
6.
If the exhaust gas backpressure with the inspection in (5) exceeds the standard, repeat the steps (2), (3), (4), and (5).
EXHAUST SYSTEM (J08E)
J08E
DPR Backpressure (Units: KPa {kgf/cm
5.0 {0.05, 0.7}
EN04–31
2
2
, lbf/in.
})
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