DTC P242F Diesel Particulate Defuser (DPD) Restriction (4JJ3 with DPD)

1. DTC P242F description

The ECM detects PM accumulation problems from the exhaust differential pressure sensor installed to the cylinder head cover bracket near the DPD. DPD automatic regeneration starts when a certain level of PM has accumulated or when the vehicle has been driven a certain distance. If automatic regeneration cannot be completed for some reason, the DPD operator regeneration indicator light in the instrument panel cluster will flash to request the driver to perform DPD regeneration. If the ECM detects an excessive exhaust differential pressure, the DTC is set.

2. Condition for setting DTC P242F

Condition for running the DTC

  • DPD regeneration is stopped.

Condition for setting the DTC

  • The ECM detects the exhaust differential pressure is more than the calculated value.

3. Action taken when DTC P242F sets

  • The ECM illuminates the MIL. Refer to Action taken when DTC sets - Type A.

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 with DPD) DTC type definitions".

  • The ECM limits the fuel injection quantity.
  • The ECM inhibits the cruise control.

4. Condition for clearing DTC P242F

  • Refer to Conditions for clearing the MIL/DTC - Type A or Type B.

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 with DPD) DTC type definitions".

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