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DTC P241F:00 [PCM (SKYACTIV-D)]

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Note

•  To determine the malfunctioning part, proceed with the diagnostics from "Function Inspection Using M-MDS".

Details On DTCs

Description	EGR cooler efficiency below threshold
Detection condition	Determination conditions	•  The cooling efficiency of the EGR cooler is less than 47 % for a continuous 6 s.
	Preconditions	•  Specified time has elapsed since all of the following conditions have been met. ―  Difference between the exhaust gas temperature detected by exhaust gas temperature sensor No.4 and the engine coolant temperature detected by ECT sensor: 50 °C {90 °F} or more ―  Exhaust gas temperature detected by exhaust gas temperature sensor No.4: 200 °C {392 °F} or more ―  LP-EGR gas temperature: 300 °C {572 °F} or less ―  EGR flow volume (LP-EGR cooler side) fluctuation amount estimated from engine operation conditions: 20 g/64 msec {0.7 oz/64 msec} ―  Engine coolant temperature detected by ECT sensor: 60—100 °C {140—212 °F} ―  Engine speed: 500—2,500 rpm ―  Barometric pressure: 72 kPa {0.73 kgf/cm2, 10 psi} or more ―  Intake air temperature: -10 °C {14 °F} or more ―  Diesel particulate filter regeneration control is not operating ―  DeNOx control is not operating ―  DeSOx control is not operating ―  The following DTCs are not detected: •  IAT sensor No.1: P0111:00, P0112:00, P0113:00 •  ECT sensor: P0116:00, P0117:00, P0118:00 •  EGR temperature sensor: P041B:00, P041C:00, P041D:00, P16B6:00 •  EGR control valve: P045B:00 •  Exhaust gas temperature sensor No.4: P166D:00, P246F:00, P2470:00, P2471:00 •  Exhaust gas temperature sensor No.2: P166F:00, P16B4:00 •  EGR control valve control device in PCM: P16A3:00 •  LP-EGR control valve: P213B:00 •  BARO sensor: P2227:00, P2228:00, P2229:00
	Drive cycle	•  2
	Self test type	•  CMDTC self test
	Sensor used	•  EGR temperature sensor •  Exhaust gas temperature sensor No.4 •  ECT sensor •  LP-EGR control valve •  CKP sensor
Fail-safe	•  Not applicable
Vehicle status when dtcs are output	•  Not applicable
Possible cause	•  Exhaust gas temperature sensor No.4 malfunction •  EGR temperature sensor malfunction •  ECT sensor malfunction •  EGR cooler malfunction •  Radiator malfunction •  Engine coolant passage malfunction (clogging, leakage) •  Coolant control valve malfunction •  PCM malfunction

System Wiring Diagram

Function Explanation (DTC Detection Outline)

Repeatability Verification Procedure

Warning

•  While performing this step, always operate the vehicle in a safe and lawful manner.

―  Start the engine and warm it up completely.

―  Accelerate in 4th gear to 70 km/h and drive the vehicle while maintaining the speed for 20 s.

PID Item/Simulation Item Used In Diagnosis

Function Inspection Using M-MDS

Step	Inspection	Results	Action
1	PURPOSE: VERIFY RELATED REPAIR INFORMATION OR SERVICE INFORMATION AVAILABILITY •  Verify related Service Bulletins, on-line repair information, or Service Information availability. •  Is any related Information available?	Yes	Perform repair or diagnosis according to the available information. •  If the vehicle is not repaired, go to the next step.
		No	Go to the next step.
2	PURPOSE: IDENTIFY TRIGGER DTC FOR FREEZE FRAME DATA •  Is DTC P241F:00 causing the freeze frame data?	Yes	Go to the next step.
		No	Go to the troubleshooting procedure for DTC on freeze frame data. (See DTC TABLE [PCM (SKYACTIV-D)].)
3	PURPOSE: RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION •  Record the freeze frame data/snapshot data. Note •  Recording can be facilitated using the screen capture function of the PC.	—	Go to the next step.
4	PURPOSE: VERIFY IF DIAGNOSTIC RESULT IS AFFECTED BY DTC OCCURRING FROM exhaust gas temperature sensor No.4 •  Switch the ignition off, then ON (engine off). •  Perform the Pending Trouble Code Access Procedure and DTC Reading Procedure. (See DTC INSPECTION.) •  Is a DTC related to the exhaust gas temperature sensor No.4 present?	Yes	Go to the applicable PENDING CODE or DTC inspection. (See DTC TABLE [PCM (SKYACTIV-D)].)
		No	Go to the next step.
5	PURPOSE: VERIFY IF DIAGNOSTIC RESULT IS AFFECTED BY DTC OCCURRING FROM EGR TEMPERATURE SENSOR •  Perform the Pending Trouble Code Access Procedure and DTC Reading Procedure. (See DTC INSPECTION.) •  Is a DTC related to the EGR temperature sensor present?	Yes	Go to the applicable PENDING CODE or DTC inspection. (See DTC TABLE [PCM (SKYACTIV-D)].)
		No	Go to the next step.
6	PURPOSE: VERIFY IF DIAGNOSTIC RESULT IS AFFECTED BY DTC OCCURRING FROM ECT sensor •  Perform the pending trouble code access Procedure and DTC Reading Procedure. (See DTC INSPECTION.) •  Is a DTC related to the ECT sensor present?	Yes	Go to the applicable PENDING CODE or DTC inspection. (See DTC TABLE [PCM (SKYACTIV-D)].)
		No	Go to Troubleshooting Diagnostic Procedure to perform the procedure from step 1.

Troubleshooting Diagnostic Procedure

―  Perform a unit inspection of the EGR cooler.

―  Inspect the cooling system.

―  Verify that primary malfunction is resolved and there are no other malfunctions.

Step	Inspection	Results	Action
1	PURPOSE: INSPECT RADIATOR CORE CONDITION •  Visually inspect the radiator core condition. •  Is there damage or an object which obstructs cool airflow?	Yes	Repair or replace the malfunctioning location and perform the repair completion verification.
		No	Go to the next step.
2	PURPOSE: INSPECT EGR COOLER FOR MALFUNCTION •  Inspect the applicable part. (See EGR COOLER INSPECTION [SKYACTIV-D 1.8].) •  Is the part normal?	Yes	Go to the next step.
		No	Repair or replace the malfunctioning location and perform the repair completion verification. (See EGR COOLER REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)
3	PURPOSE: INSPECT ENGINE COOLANT PASSAGE FOR CLOGGING OR LEAKAGE •  Inspect the engine coolant passage for clogging or leakage. (See COOLING SYSTEM LOCATION INDEX [SKYACTIV-D 1.8].) •  Is there any malfunction?	Yes	Repair or replace the malfunctioning location and perform the repair completion verification. (See COOLING SYSTEM LOCATION INDEX [SKYACTIV-D 1.8].)
		No	Go to the next step.
4	PURPOSE: INSPECT COOLANT CONTROL VALVE FOR MALFUNCTION •  Inspect the applicable part. (See COOLANT CONTROL VALVE INSPECTION [SKYACTIV-D 1.8].) •  Is the part normal?	Yes	Go to the next step.
		No	Repair or replace the malfunctioning location and perform the repair completion verification. (See COOLANT CONTROL VALVE REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)
Repair completion verification 1	PURPOSE: VERIFY THAT VEHICLE IS REPAIRED •  Install/connect the part removed/disconnected during the troubleshooting procedure. •  Clear the DTC recorded in the memory. (See CLEARING DTC.) •  Replicate the vehicle conditions at the time the DTC was detected using the following procedure. ―  Implement the repeatability verification procedure. (See Repeatability Verification Procedure) •  Perform the DTC inspection for the PCM. (See DTC INSPECTION.) •  Is the same Pending DTC present?	Yes	Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error. (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [(E)].) If the CAN communication is normal, perform the diagnosis from Step 1. •  If the malfunction recurs, replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)
		No	Go to the next step.
Repair completion verification 2	PURPOSE: VERIFY IF OTHER DTCs DISPLAYED •  Perform the DTC inspection. (See DTC INSPECTION.) •  Are any other DTCs displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting.
		No	DTC troubleshooting completed.