DTC P24C7:00 [DOSING CONTROL UNIT (SKYACTIV-D 2.2)]

id0102k1729500


Details On DTCs

DESCRIPTION

PM sensor temperature circuit range/performance
DETECTION CONDITION
Determination conditions
1.  The PM temperature detected by the PM sensor is greatly different from the value estimated by the dosing control unit.
2.  The PM temperature detected by the PM sensor is -39 °C {-38 °F} or less.
3.  The absolute difference of the PM sensor starting temperature and the weighted average value of exhaust gas temperature sensor No.4 and exhaust gas temperature sensor No.5 is 84.96 °C {184.9 °F} or more.
Preconditions
•  Battery voltage: 10.9—16 V
•  Period vehicle being left: more than 6 h
•  The following DTCs are not detected:
―  P007B:00, P007C:00, P007D:00, P0101:00, P0102:00, P0103:00, P0111:00, P0112:00, P0113:00, P0500:00, P0545:00, P0546:00, P161D:00, P166D:00, P166E:00, P2080:00, P246F:00, P2470:00, P2471:00, P2481:00, P2482:00, P2483:00, P24C6:00, P24C7:00, P24D0:00, P24DA:00, U0100:00, U0121:00, U02A3:00
Drive cycle
•  2
Self test type
•  CMDTC self test
Sensor used
•  PM sensor
FAIL-SAFE FUNCTION
•  Not applicable
VEHICLE STATUS WHEN DTCs ARE OUTPUT
•  Illuminates selective catalytic reduction (SCR) warning light.
POSSIBLE CAUSE
•  Exhaust gas temperature sensor No.4 connector or terminals malfunction
•  Exhaust gas temperature sensor No.4 malfunction
•  Exhaust gas temperature sensor No.5 connector or terminals malfunction
•  Exhaust gas temperature sensor No.5 malfunction
•  PM sensor connector or terminals malfunction
•  PM sensor malfunction
•  Dosing control unit connector or terminals malfunction
•  Dosing control unit malfunction


System Wiring Diagram

•  Not applicable

Function Explanation (DTC Detection Outline)

•  The dosing control unit performs malfunction determination of the PM sensor based on the PM temperature detected by the PM sensor. If the value detected by the PM sensor is not normal, the dosing control unit stores a DTC.

Repeatability Verification Procedure

1.  Leave the vehicle for 6 hours or more.

2.  Start the engine and leave it idling for 30 min.

3.  Perform the “COMPULSORY DIESEL PARTICULATE FILTER REGENERATION”. (See COMPULSORY DIESEL PARTICULATE FILTER REGENERATION [SKYACTIV-D 2.2].)

4.  Drive the vehicle for 10 min at a speed of 100 km/h {62.1 mph} or less.

5.  Drive the vehicle for 10 min at a speed of 30 km/h {19 mph} or less.


PID Item/Simulation Item Used In Diagnosis

•  Not applicable

Diagnostic Procedure

STEP

INSPECTION

RESULTS

ACTION
1
RECORD VEHICLE STATUS AT TIME OF DTC DETECTION TO UTILIZE WITH REPEATABILITY VERIFICATION
Note
•  Recording can be facilitated using the screen capture function of the PC.
•  Record the snapshot data on the repair order.
—
Go to the next step.
2
VERIFY RELATED SERVICE INFORMATION AVAILABILITY
•  Verify related Service Information availability.
•  Is any related Service Information available?
Yes
Perform repair or diagnosis according to the available Service Information.
•  If the vehicle is not repaired, go to the next step.
No
Go to the next step.
3
INSPECT EXHAUST GAS TEMPERATURE SENSOR No.4 CONNECTOR CONDITION
•  Switch the ignition off.
•  Disconnect the exhaust gas temperature sensor No.4 connector.
•  Inspect for poor connection (such as damaged/pulled-out pins, corrosion).
•  Is there any malfunction?
Yes
Repair or replace the connector and/or terminals, then go to Step 10.
No
Go to the next step.
4
INSPECT EXHAUST GAS TEMPERATURE SENSOR No.4
•  Inspect the exhaust gas temperature sensor No.4.
•  Is there any malfunction?
Yes
Replace the exhaust gas temperature sensor No.4, then go to step 10.
(See EXHAUST GAS TEMPERATURE SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)
No
Go to the next step.
5
INSPECT EXHAUST GAS TEMPERATURE SENSOR No.5 CONNECTOR CONDITION
•  Disconnect the exhaust gas temperature sensor No.5 connector.
•  Inspect for poor connection (such as damaged/pulled-out pins, corrosion).
•  Is there any malfunction?
Yes
Repair or replace the connector and/or terminals, then go to Step 10.
No
Go to the next step.
6
INSPECT EXHAUST GAS TEMPERATURE SENSOR No.5
•  Inspect the exhaust gas temperature sensor No.5.
•  Is there any malfunction?
Yes
Replace the exhaust gas temperature sensor No.5, then go to step 10.
(See EXHAUST GAS TEMPERATURE SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)
No
Go to the next step.
7
INSPECT PM SENSOR CONNECTOR CONDITION
•  Disconnect the PM sensor connector.
•  Inspect for poor connection (such as damaged/pulled-out pins, corrosion).
•  Is there any malfunction?
Yes
Repair or replace the connector and/or terminals, then go to step 10.
No
Go to the next step.
8
INSPECT PM SENSOR
•  Inspect the PM sensor.
•  Is there any malfunction?
Yes
Replace the PM sensor, then go to step 10.
(See PM SENSOR INSPECTION [SKYACTIV-D 2.2].)
No
Go to the next step.
9
INSPECT DOSING CONTROL UNIT CONNECTOR CONDITION
•  Disconnect the dosing control unit connector.
•  Inspect for poor connection (such as damaged/pulled-out pins, corrosion).
•  Is there any malfunction?
Yes
Repair or replace the connector and/or terminals, then go to the next step.
No
Go to the next step.
10
VERIFY DTC TROUBLESHOOTING COMPLETED
•  Clear the DTC from the dosing control unit memory using the M-MDS.
•  Implement the repeatability verification procedure.
•  Retrieve the dosing control unit DTCs using the M-MDS.
•  Is the same Pending DTC present?
Yes
Repeat the inspection from Step 1.
•  If the malfunction recurs, replace the dosing control unit.
(See DOSING CONTROL UNIT REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)
Go to the next step.
No
Go to the next step.
11
VERIFY IF OTHER DTCs DISPLAYED
•  Are any other DTCs displayed?
Yes
Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.
(See DTC TABLE [DOSING CONTROL UNIT (SKYACTIV-D 2.2)].)
No
DTC troubleshooting completed.