DTC P242F:00 [MZR-CD (RF Turbo)]


id0102f1153400

DTC P242F:00

Diesel particulate filter restriction-ash accumulation

DETECTION CONDITION
•  The PCM calculates diesel particulate filter ash accumulation based on the exhaust gas pressure sensor signal. If the PCM calculates that ash accumulation amount is more than 15 g/L {0.94 lb/ft3}, the PCM determines that the diesel particulate filter ash accumulation excessive.
Diagnostic support note
•  The MIL illuminates if the PCM detects the above malfunction condition in first drive cycle.
•  PENDING CODE is available if the PCM detects the above malfunction condition during the first drive cycle.
•  FREEZE FRAME DATA is available.
•  The DTC is stored in the PCM memory.
POSSIBLE CAUSE
•  Exhaust gas pressure sensor for poor connection
•  Exhaust gas pressure sensor piping restriction, damaged and/or improper connection
•  Diesel particulate filter restriction and/or damaged
•  PCM malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION

1
VERIFY FREEZE FRAME DATA AND DIAGNOSTIC MONITORING TEST RESULTS HAS BEEN RECORDED
•  Has 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 SERVICE INFORMATION AVAILABILITY
•  Verify related Service Information availability.
•  Is any related Service Information available?
Yes
Perform the repair or diagnosis according to the available Service Information.
•  If the vehicle is not repaired, go to the next step.
No
Go to the next step.
3
IDENTIFY TRIGGER DTC FOR FREEZE FRAME DATA
•  Is DTC P242F:00 on FREEZE FRAME DATA?
Yes
Go to the next step.
No
Go to troubleshooting procedures for DTC in FREEZE FRAME DATA.
4
INSPECT EXHAUST GAS PRESSURE SENSOR PIPING
•  Inspect for connection and condition at exhaust gas pressure sensor side piping.
•  Is there any clacked damaged and/or misconnection found?
Yes
Repair or replace malfunctioning part, then go to Step 6.
No
Go to the next step.
5
INSPECT EXHAUST GAS PRESSURE SENSOR FOR POOR CONNECTION
•  Switch the ignition to off.
•  Disconnect the exhaust gas pressure sensor connector.
•  Inspect for poor connection (such as damaged/pulled-out pins, corrosion etc.).
•  Is there any malfunction?
Yes
Repair or replace the terminal, then go to the next step.
No
Replace the catalytic converter.
Then go to the next step.
6
VERIFY TROUBLESHOOTING OF DTC P242F:00 COMPLETED
•  Make sure to reconnect all disconnected connectors.
•  Switch the ignition to ON (engine off).
•  Clear the DTC from PCM memory using the M-MDS.
•  Start the engine.
•  Is the same DTC present?
Yes
Replace the PCM, then go to the next step.
No
Go to the next step.
7
VERIFY AFTER REPAIR PROCEDURE
•  Perform the “AFTER REPAIR PROCEDURE”.
•  Are any DTCs present?
Yes
Go to the applicable DTC inspection.
No
DTC troubleshooting completed.