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DTC P041C: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 temperature sensor circuit low input
Detection conditions	Determination condition	•  The EGR temperature sensor output voltage is lower than 0.03 V for a continuous 5 s.
	Preconditions	•  All of the following conditions are met. ―  Battery positive voltage: 8—16 V ―  0.5 s have elapsed after ignition is switched ON (engine off or on)
	Drive cycle	•  2
	Self-test type	•  CMDTC self test
	Sensor/unit used	•  EGR temperature sensor
Fail-safe	•  Not applicable
Vehicle status when DTCs are output	•  Not applicable
Possible cause	•  EGR temperature sensor connector or terminal malfunction •  PCM connector or terminal malfunction •  Short to ground in EGR temperature sensor signal circuit •  Short circuit in EGR temperature sensor signal circuit and ground circuit •  EGR temperature sensor malfunction •  PCM malfunction

System Wiring Diagram

Function Explanation (DTC Detection Outline)

―  The output voltage of the EGR temperature sensor is lower than 0.03 V for a continuous 5 s.

Repeatability Verification Procedure

PID Item/Simulation Item Used In Diagnosis

PID/DATA monitor item table

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: 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 Troubleshooting Diagnostic Procedure to perform the procedure from Step 1.
3	PURPOSE: VERIFY RELATED SENSOR INPUT SIGNAL •  Start the engine and warm it up. •  Display the following PIDs using the M-MDS. (See DTC INSPECTION) ―  EGRT •  Are the monitoring values normal?	Yes	Go to Troubleshooting Diagnostic Procedure to perform the procedure from step 1.
		No	Go to the next step.
4	PURPOSE: INSPECT WIRING HARNESSES AND CONNECTORS FOR RELATED-SENSOR •  Display the following PIDs using the M-MDS. (See DTC INSPECTION) ―  EGRT •  When the PCM and EGR gas temperature sensor connectors are shaken, does the PID value include a PID item which has changed?	Yes	Inspect the related wiring harnesses and connectors. •  Repair or replace the malfunctioning location. Go to the troubleshooting procedure to perform the procedure from repair completion verification.
		No	Go to Troubleshooting Diagnostic Procedure to perform the procedure from step 1.

Troubleshooting Diagnostic Procedure

―  Verify that there is no problem with engagement of each separate part.

―  Verify that there is no malfunction in EGR temperature sensor terminals A and C.

―  Perform a unit inspection of the EGR temperature sensor.

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

Step	Inspection	Results	Action
1	PURPOSE: VERIFY IF CONNECTOR DAMAGE OF EACH PART AFFECTS DIAGNOSTIC RESULTS •  Switch the ignition OFF. •  Disconnect the connectors of the following parts: ―  EGR temperature sensor ―  PCM •  Inspect the connector engagement and connection condition, and inspect the terminals for damage, deformation, corrosion, or disconnection. •  Is the connector normal?	Yes	Go to the next step.
		No	Repair or replace the connector, then go to repair completion verification.
2	INSPECT EGR TEMPERATURE SENSOR SIGNAL CIRCUIT FOR SHORT TO GROUND •  Inspect the applicable circuit for a short to ground. (See CIRCUIT INSPECTION.) •  Is the circuit normal?	Yes	Go to the next step.
		No	Repair or replace the malfunctioning location and perform the repair completion verification.
3	INSPECT EGR TEMPERATURE SENSOR GROUND CIRCUIT AND SIGNAL CIRCUIT FOR SHORT CIRCUIT •  Inspect the applicable circuits for a short circuit. (See CIRCUIT INSPECTION.) •  Is the circuit normal?	Yes	Go to repair completion verification.
		No	Repair or replace the malfunctioning location and perform the repair completion verification.
4	PURPOSE: INSPECT EGR TEMPERATURE SENSOR FOR MALFUNCTION •  Inspect the applicable part. (See EGR TEMPERATURE SENSOR INSPECTION [SKYACTIV-D 1.8]) •  Is the part normal?	Yes	Go to repair completion verification.
		No	Repair or replace the malfunctioning location and perform the repair completion verification. (See EGR TEMPERATURE SENSOR 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.