DTC P242F:00 [MZR-CD 2.2]
id0102f3153400
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DTC P242F:00 |
Diesel particulate filter restriction-ash accumulation |
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DETECTION CONDITION
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• 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 17 g/L {1.06 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 (mode2) and snapshot data are available.
• The DTC is stored in the PCM memory.
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POSSIBLE CAUSE
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• Exhaust gas pressure sensor piping restriction, damaged and/or improper connection
• Exhaust gas pressure sensor for poor connection
• Diesel particulate filter restriction and/or damaged
• PCM malfunction
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Diagnostic procedure
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STEP |
INSPECTION |
ACTION |
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1
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IDENTIFY TRIGGER DTC FOR FREEZE FRAME DATA (MODE2)
• Is DTC P242F:00 on FREEZE FRAME DATA (mode2)?
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Yes
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Go to the next step.
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No
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Go to troubleshooting procedures for DTC in FREEZE FRAME DATA (mode2).
(See DTC TABLE [MZR-CD 2.2].)
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2
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VERIFY FREEZE FRAME DATA AND DIAGNOSTIC MONITORING TEST RESULTS HAS BEEN RECORDED
• Have FREEZE FRAME DATA (mode2) or snapshot data been recorded?
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Yes
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Go to the next step.
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No
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Record the FREEZE FRAME DATA (mode2) and snapshot data on the repair order, then go to the next step.
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3
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VERIFY RELATED SERVICE INFORMATION AVAILABILITY
• Verify related Service Information availability.
• Is any related Service Information available?
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Yes
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Perform repair or diagnosis according to the available Service Information.
• If the vehicle is not repaired, go to the next step.
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No
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Go to the next step.
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4
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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?
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Yes
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Repair or replace malfunctioning part, then go to Step 6.
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No
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Go to the next step.
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5
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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?
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Yes
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Repair or replace the terminal, then go to the next step.
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No
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Replace the catalytic converter.
Then go to the next step.
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6
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VERIFY TROUBLESHOOTING OF DTC P242F:00 COMPLETED
• Make sure to reconnect all disconnected connectors.
• Clear the DTC from the PCM memory using the M-MDS.
• Start the engine.
• Perform the DTC Reading Procedure.
• Is the same DTC present?
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Yes
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Repeat the inspection from Step 1.
• If the malfunction recurs, replace the PCM.
Go to the next step.
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No
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Go to the next step.
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7
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VERIFY AFTER REPAIR PROCEDURE
• Perform the “AFTER REPAIR PROCEDURE”.
• Are any DTCs present?
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Yes
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Go to the applicable DTC inspection.
(See DTC TABLE [MZR-CD 2.2].)
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No
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DTC troubleshooting completed.
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