DTC P24AF:00 [DOSING CONTROL UNIT (SKYACTIV-D 2.2)]

id0102k1728900

Note

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

Details On DTCs

DESCRIPTION

PM sensor circuit range/performance

DETECTION CONDITION

Determination conditions

•  Five s have elapsed since the current in the PM sensor exceeds 5.00 µA.

Preconditions

•  PM sensor temperature: 200—425 °C {392—797 °F}

•  PM sensor internal circuit current: within the specified value

•  Ignition switched ON (engine off)

•  Battery voltage: 10.9—16 V

•  The following DTCs is not detected:

―  PM sensor: P24D0:00, U02A3:00

Drive cycle

•  2

Self test type

•  CMDTC self test

Sensor used

•  PM sensor

•  Dosing control unit

FAIL-SAFE FUNCTION

•  Not applicable

VEHICLE STATUS WHEN DTCs ARE OUTPUT

•  Illuminates selective catalytic reduction (SCR) warning light.

•  DTC P1640:00 is also stored in the PCM.

POSSIBLE CAUSE

•  PM connector or terminals malfunction

•  Dosing control unit connector or terminals malfunction

•  PM sensor malfunction

―  Internal malfunction

―  Deterioration due to soot/moisture adhering to PM sensor

―  Characteristics malfunction

•  Dosing control unit malfunction

DESCRIPTION	PM sensor circuit range/performance
DETECTION CONDITION	Determination conditions	• Five s have elapsed since the current in the PM sensor exceeds 5.00 µA.
Preconditions	• PM sensor temperature: 200—425 °C {392—797 °F} • PM sensor internal circuit current: within the specified value • Ignition switched ON (engine off) • Battery voltage: 10.9—16 V • The following DTCs is not detected: ― PM sensor: P24D0:00, U02A3:00
Drive cycle	• 2
Self test type	• CMDTC self test
Sensor used	• PM sensor • Dosing control unit
FAIL-SAFE FUNCTION	• Not applicable
VEHICLE STATUS WHEN DTCs ARE OUTPUT	• Illuminates selective catalytic reduction (SCR) warning light. • DTC P1640:00 is also stored in the PCM.
POSSIBLE CAUSE	• PM connector or terminals malfunction • Dosing control unit connector or terminals malfunction • PM sensor malfunction ― Internal malfunction ― Deterioration due to soot/moisture adhering to PM sensor ― Characteristics malfunction • Dosing control unit malfunction

System Wiring Diagram

• Not applicable

Function Explanation (DTC Detection Outline)

• The dosing control unit monitors the current in the PM sensor.

• If the current in the PM sensor is higher than the specified value, the dosing control unit determines that the PM sensor has an internal malfunction and stores a DTC.

Repeatability Verification Procedure

1. Perform the "COMPULSORY DIESEL PARTICULATE FILTER REGENERATION". (See COMPULSORY DIESEL PARTICULATE FILTER REGENERATION [SKYACTIV-D 2.2].)

2. Idle the engine for 1 min.

PID Item/Simulation Item Used In Diagnosis

• Not applicable

Function Inspection Using M-MDS

STEP

INSPECTION

RESULTS

ACTION

1

PURPOSE: VERIFY RELATED REPAIR 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.

2

PURPOSE: IDENTIFY TRIGGER DTC FOR FREEZE FRAME DATA

•  Is the DTC P24AF:00 on FREEZE FRAME DATA?

Yes

Go to the next step.

No

Go to the troubleshooting procedure for DTC on FREEZE FRAME DATA.

(See DTC TABLE [DOSING CONTROL UNIT (SKYACTIV-D 2.2)].)

3

PURPOSE: RECORD FREEZE FRAME DATA/SNAPSHOT DATA AND DIAGNOSTIC MONITORING TEST RESULTS TO UTILIZE WITH REPEATABILITY VERIFICATION

•  Recording can be facilitated using the screen capture function of the PC.

•  Record the FREEZE FRAME DATA/snapshot data and DIAGNOSTIC MONITORING TEST RESULTS (PM sensor related) on the repair order.

—

Go to Troubleshooting Diagnostic Procedure to perform the procedure from step 1.

STEP	INSPECTION	RESULTS	ACTION
1	PURPOSE: VERIFY RELATED REPAIR 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.
2	PURPOSE: IDENTIFY TRIGGER DTC FOR FREEZE FRAME DATA • Is the DTC P24AF:00 on FREEZE FRAME DATA?	Yes	Go to the next step.
No	Go to the troubleshooting procedure for DTC on FREEZE FRAME DATA. (See DTC TABLE [DOSING CONTROL UNIT (SKYACTIV-D 2.2)].)
3	PURPOSE: RECORD FREEZE FRAME DATA/SNAPSHOT DATA AND DIAGNOSTIC MONITORING TEST RESULTS TO UTILIZE WITH REPEATABILITY VERIFICATION • Recording can be facilitated using the screen capture function of the PC. • Record the FREEZE FRAME DATA/snapshot data and DIAGNOSTIC MONITORING TEST RESULTS (PM sensor related) on the repair order.	—	Go to Troubleshooting Diagnostic Procedure to perform the procedure from step 1.

Troubleshooting Diagnostic Procedure

Intention of troubleshooting procedure

• Step 1—3

― Perform inspection of PM sensor signal related parts.

• Step 4—5

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

STEP

INSPECTION

RESULTS

ACTION

1

PURPOSE: INSPECT PM SENSOR CONNECTOR CONDITION

•  Switch the ignition off.

•  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 4.

No

Go to the next step.

2

PURPOSE: INSPECT DOSING CONTROL UNIT CONNECTOR CONDITION

•  Switch the ignition off.

•  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 Step 4.

No

Go to the next step.

3

PURPOSE: VISUALLY INSPECT PM SENSOR FOR SOOT ACCUMULATION OR DAMAGE

•  Visually inspect the PM sensor.
(See PM SENSOR INSPECTION [SKYACTIV-D 2.2].)

•  Disconnect the dosing control unit connector.

•  Is there any malfunction?

Yes

Replace the PM sensor, then go to the next step.

(See PM SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2])

No

Go to the next step.

4

PURPOSE: VERIFICATION OF VEHICLE REPAIR COMPLETION

•  Always reconnect all disconnected connectors.

•  Clear the DTC from the dosing control unit memory using the M-MDS.
(See CLEARING DTC [DOSING CONTROL UNIT (SKYACTIV-D 2.2)].)

•  Implement the repeatability verification procedure.
(See Repeatability Verification Procedure.)

•  Perform the Pending Trouble Code Access Procedure.
(See ON-BOARD DIAGNOSTIC TEST [DOSING CONTROL UNIT (SKYACTIV-D 2.2)].)

•  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.

5

PURPOSE: VERIFY IF THERE IS ANY OTHER MALFUNCTION

•  Is any other DTC or pending code stored?

Yes

Go to the applicable DTC inspection.

(See DTC TABLE [DOSING CONTROL UNIT (SKYACTIV-D 2.2)].)

No

DTC troubleshooting completed.

STEP	INSPECTION	RESULTS	ACTION
1	PURPOSE: INSPECT PM SENSOR CONNECTOR CONDITION • Switch the ignition off. • 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 4.
1		No	Go to the next step.
2	PURPOSE: INSPECT DOSING CONTROL UNIT CONNECTOR CONDITION • Switch the ignition off. • 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 Step 4.
2		No	Go to the next step.
3	PURPOSE: VISUALLY INSPECT PM SENSOR FOR SOOT ACCUMULATION OR DAMAGE • Visually inspect the PM sensor. (See PM SENSOR INSPECTION [SKYACTIV-D 2.2].) • Disconnect the dosing control unit connector. • Is there any malfunction?	Yes	Replace the PM sensor, then go to the next step. (See PM SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2])
3		No	Go to the next step.
4	PURPOSE: VERIFICATION OF VEHICLE REPAIR COMPLETION • Always reconnect all disconnected connectors. • Clear the DTC from the dosing control unit memory using the M-MDS. (See CLEARING DTC [DOSING CONTROL UNIT (SKYACTIV-D 2.2)].) • Implement the repeatability verification procedure. (See Repeatability Verification Procedure.) • Perform the Pending Trouble Code Access Procedure. (See ON-BOARD DIAGNOSTIC TEST [DOSING CONTROL UNIT (SKYACTIV-D 2.2)].) • 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.
4		No	Go to the next step.
5	PURPOSE: VERIFY IF THERE IS ANY OTHER MALFUNCTION • Is any other DTC or pending code stored?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [DOSING CONTROL UNIT (SKYACTIV-D 2.2)].)
5		No	DTC troubleshooting completed.