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 the diesel particulate filter ash accumulation based on the exhaust gas pressure sensor signal. If the PCM calculates that the 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 during the first drive cycle.
• FREEZE FRAME DATA (Mode 2)/Snapshot data is available.
• The DTC is stored in the PCM memory.
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POSSIBLE CAUSE
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• DTC for MIL illumination is recorded
• The vehicle is driven while the DPF indicator light is on
• 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 (MODE 2)
• Perform the Freeze Frame PID Data Access Procedure.
• Is the DTC P242F:00 on FREEZE FRAME DATA (Mode 2)?
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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 the troubleshooting procedure for DTC on FREEZE FRAME DATA (Mode 2).
(See DTC TABLE [MZR-CD 2.2].)
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2
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VERIFY FREEZE FRAME DATA (MODE 2)/SNAPSHOT DATA HAS BEEN RECORDED
• Has the FREEZE FRAME DATA (Mode 2)/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 (Mode 2)/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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VERIFY RELATED PENDING CODE AND/OR DTC
• Switch the ignition to off, then to ON (engine off).
• Perform the Pending Trouble Code Access Procedure and DTC Reading Procedure.
• Are any other PENDING CODEs and/or DTCs present?
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Yes
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Go to the applicable PENDING CODE or DTC inspection.
(See DTC TABLE [MZR-CD 2.2].)
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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 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 the malfunctioning part according to the inspection results, then go to Step 7.
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No
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Go to the next step.
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6
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INSPECT EXHAUST GAS PRESSURE SENSOR CONNECTOR CONDITION
• Switch the ignition to off.
• Disconnect the exhaust gas pressure sensor connector.
• Inspect for poor connection (such as damaged/pulled-out pins, corrosion).
• Is there any malfunction?
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Yes
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Repair or replace the connector and/or terminals, 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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7
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VERIFY DTC TROUBLESHOOTING 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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Replace the PCM, then go to the next step.
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No
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Go to the next step.
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8
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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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