DTC P244B:00 [MZ-CD 1.6 (Y6) (EURO5 emission level)]

id0102g7358900

DTC P244B:00

Diesel particulate filter differential pressure to high
DETECTION CONDITION
•  The PCM monitors the difference in pressure before and after the diesel particulate filter using the diesel particulate filter differential pressure sensor.If the differential pressure sensor signal exceeds the pressure difference threshold, the PCM determines that the difference in pressure is too high.
POSSIBLE CAUSE
•  Diesel particulate filter differential pressure sensor malfunction
•  Diesel particulate filter differential pressure sensor hose clog, bend
•  PCM malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION
1
VERIFY FREEZE FRAME DATA HAS BEEN RECORDED
•  Has the FREEZE FRAME DATA been recorded?
Yes
Go to the next step.
No
Record the FREEZE FRAME DATA on the repair order, then go to the next step.
2
VERIFY RELATED REPAIR INFORMATION AVAILABILITY
•  Verify related service repair information availability.
•  Is any related repair information available?
Yes
Perform repair or diagnosis according to the available repair information.
•  If the vehicle is not repaired, go to the next step.
No
Go to the next step.
3
INSPECT PARTICULATE FILTER DIFFERENTIAL PRESSURE SENSOR PIPING
•  Inspect for connection and condition at particular filter differential pressure sensor side piping.
•  Is there any clacked and/or damaged found?
Yes
Repair or replace for malfunctioning part, then go to the next step.
No
Replace the diesel particulate filter differential pressure sensor, then go to the next step.
(Diesel particulate filter differential pressure sensor characteristic malfunction)
(See DIESEL PARTICULATE FILTER DIFFERENTIAL PRESSURE SENSOR REMOVAL/INSTALLATION [MZ-CD 1.6 (Y6) (EURO5 emission level)].)
4
VERIFY THAT DTC P244B:00 TROUBLESHOOTING IS COMPLETED
•  Make sure to reconnect all disconnected connectors.
•  Clear the DTC from the PCM memory using the M-MDS.
•  Run the vehicle under the FREEZE FRAME DATA stored condition.
•  Is the same DTC present?
Yes
Repeat the inspection from Step 1.
•  If the malfunction recurs, replace the PCM.
Go to the next step.
No
Go to the next step.
5
VERIFY AFTER REPAIR PROCEDURE
•  Perform the after repair procedure.
•  Are any DTCs present?
Yes
Go to the applicable DTC inspection.
(See DTC TABLE [MZ-CD 1.6 (Y6) (EURO5 emission level)].)
No
DTC troubleshooting completed.