DTC P244A:00 [PCM (SKYACTIV-D 2.2)]

id0102j5058900

DTC P244A:00

Exhaust gas pressure sensor No.2: Function error

DETECTION CONDITION

•  When all of the following conditions are met, a difference in the pressure before and after passing the diesel particulate filter of less than the specification is detected continuously for 7 s.

―  Battery positive voltage: 8—16 V

―  0.5 s have elapsed after ignition is switched ON (engine on)

―  The following conditions continue for 3 s

•  Engine speed: 825 rpm or more

•  Exhaust gas amount: 2.5 m³/min or more

•  Exhaust gas fluctuation amount: 0.03 m³/min or less within 0.016 s

•  Exhaust gas temperature detected by exhaust gas temperature sensors No.2 and No.3: 500 °C or less

•  Estimated value of post-diesel particulate filter exhaust gas temperature: 500 °C or less

•  PM accumulated amount: 1.5 g/l or more

―  The following DTCs are not detected

•  MAF sensor: P0102:00, P0103:00

•  MAP sensor No.2: P0107:00, P0108:00

•  CKP sensor: P0336:00, P0337:00

•  EGR valve position sensor: P0405:00, P0406:00

•  Exhaust gas temperature sensor No.1: P0545:00, P0546:00

•  Exhaust gas temperature sensor No.2: P161F:00, P16B3:00

•  IAT sensor No.2: P1118:00, P1119:00

•  IAT sensor No.3: P242C:00, P242D:00

•  Exhaust gas pressure sensor No.1: P0472:00, P0473:00

•  Exhaust gas pressure sensor No.2: P2454:00, P2455:00

•  Constant voltage power supply control system: P0652:00, P0653:00

•  BARO sensor: P2228:00, P2229:00

Diagnostic support note

•  This is a continuous monitor (CCM).

•  The check engine light illuminates if the PCM detects the above malfunction condition during the first drive cycle.

•  FREEZE FRAME DATA/Snapshot data is available.

•  DTC is stored in the PCM memory.

FAIL-SAFE FUNCTION

•  Limits the engine torque/limits the maximum engine speed.

•  Inhibits the automatic diesel particulate filter regeneration control.

•  Inhibits the manual diesel particulate filter regeneration control.

•  Inhibits the EGR control.

POSSIBLE CAUSE

•  PCM input signal error

―  Exhaust gas pressure sensor No.2 signal

―  Input signal part connector or terminal malfunction

―  Input signal part-related wiring harness malfunction

•  Exhaust gas leakage from exhaust system

•  Pipe clogging, damage or erroneous piping between exhaust gas pressure sensor No.2 and catalytic converter

•  Exhaust gas pressure sensor No.2 malfunction

•  Catalytic converter or diesel particulate filter malfunction (deformation, damage)

•  PCM malfunction

SYSTEM WIRING DIAGRAM

Not applicable

DTC P244A:00	Exhaust gas pressure sensor No.2: Function error
DETECTION CONDITION	• When all of the following conditions are met, a difference in the pressure before and after passing the diesel particulate filter of less than the specification is detected continuously for 7 s. ― Battery positive voltage: 8—16 V ― 0.5 s have elapsed after ignition is switched ON (engine on) ― The following conditions continue for 3 s • Engine speed: 825 rpm or more • Exhaust gas amount: 2.5 m³/min or more • Exhaust gas fluctuation amount: 0.03 m³/min or less within 0.016 s • Exhaust gas temperature detected by exhaust gas temperature sensors No.2 and No.3: 500 °C or less • Estimated value of post-diesel particulate filter exhaust gas temperature: 500 °C or less • PM accumulated amount: 1.5 g/l or more ― The following DTCs are not detected • MAF sensor: P0102:00, P0103:00 • MAP sensor No.2: P0107:00, P0108:00 • CKP sensor: P0336:00, P0337:00 • EGR valve position sensor: P0405:00, P0406:00 • Exhaust gas temperature sensor No.1: P0545:00, P0546:00 • Exhaust gas temperature sensor No.2: P161F:00, P16B3:00 • IAT sensor No.2: P1118:00, P1119:00 • IAT sensor No.3: P242C:00, P242D:00 • Exhaust gas pressure sensor No.1: P0472:00, P0473:00 • Exhaust gas pressure sensor No.2: P2454:00, P2455:00 • Constant voltage power supply control system: P0652:00, P0653:00 • BARO sensor: P2228:00, P2229:00 Diagnostic support note • This is a continuous monitor (CCM). • The check engine light illuminates if the PCM detects the above malfunction condition during the first drive cycle. • FREEZE FRAME DATA/Snapshot data is available. • DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION	• Limits the engine torque/limits the maximum engine speed. • Inhibits the automatic diesel particulate filter regeneration control. • Inhibits the manual diesel particulate filter regeneration control. • Inhibits the EGR control.
POSSIBLE CAUSE	• PCM input signal error ― Exhaust gas pressure sensor No.2 signal ― Input signal part connector or terminal malfunction ― Input signal part-related wiring harness malfunction • Exhaust gas leakage from exhaust system • Pipe clogging, damage or erroneous piping between exhaust gas pressure sensor No.2 and catalytic converter • Exhaust gas pressure sensor No.2 malfunction • Catalytic converter or diesel particulate filter malfunction (deformation, damage) • PCM malfunction
SYSTEM WIRING DIAGRAM	Not applicable

Diagnostic Procedure

Step

Inspection

Results

Action

1

RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION

Note

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

•  Record the freeze frame data/snap shot data.

—

Go to the next step.

2

VERIFY OTHER RELATED DTCs

•  Switch the ignition OFF, and then switch it ON (engine off).

•  Display the DTCs using the M-MDS.
(See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)])

•  Has any DTC other than P244A:00 been stored?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

(See DTC TABLE [PCM (SKYACTIV-D 2.2)])

No

Go to the next step.

3

VERIFY INPUT SIGNAL CONDITION

•  Start the engine.

•  Display the following PIDs using the M-MDS.
(See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)])

―  EXHPRESS_DIF

•  Is the PID within the specification?

Yes

Go to the next step.

No

Inspect the related sensors and wiring harnesses.

•  Malfunction in the sensor or wiring harness:

―  Repair or replace the malfunctioning location, then go to Step 7.

•  No malfunction in the sensor, wiring harness:

―  Go to the next step.

4

INSPECT FOR EXHAUST GAS LEAKAGE FROM EXHAUST SYSTEM

•  Visually inspect for exhaust gas leakage from exhaust system.

•  Is the intake air system normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning location, then go to Step 7.

5

INSPECT EXHAUST GAS PRESSURE SENSOR NO.2-RELATED PIPING

•  Visually inspect the exhaust gas pressure sensor No.2-related piping for damage, loss, or erroneous piping.
(See EXHAUST GAS PRESSURE SENSOR INSPECTION [SKYACTIV-D 2.2])

•  Is the exhaust gas pressure sensor No.2-related piping normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning location, then go to Step 7.

6

INSPECT EXHAUST GAS PRESSURE SENSOR NO.2

•  Reconnect all disconnected connectors and hoses.

•  Inspect exhaust gas pressure sensor No.2.
(See EXHAUST GAS PRESSURE SENSOR INSPECTION [SKYACTIV-D 2.2])

•  Is exhaust gas pressure sensor No.2 normal?

Yes

Malfunction in the catalytic converter or the diesel particulate filter in the catalytic converter can be considered.

•  Replace the catalytic converter, then go to the next step.
(See EXHAUST SYSTEM REMOVAL/INSTALLATION [SKYACTIV-D 2.2])

No

Replace exhaust gas pressure sensor No.2, then go to the next step.

(See EXHAUST GAS PRESSURE SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2])

7

VERIFY THAT REPAIRS HAVE BEEN COMPLETED

•  Reconnect all disconnected connectors and hoses.

•  Refer to the [MEMORY CLEARING PROCEDURE] and clear the DTC.
(See CLEARING DTC [PCM (SKYACTIV-D 2.2)])

•  Display PID EXHPRESS_DIF using the M-MDS.
(See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)])

•  Start the engine.

•  Race the engine at 3,500 rpm or more for 1 min.

•  Verify that the EXHPRESS_DIF PID value is 0.2 kPa or more.

•  Display the DTCs using the M-MDS.
(See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)])

•  Has DTC P244A:00 been recorded?

Yes

Repeat the inspection from Step 1.

•  If the malfunction recurs, replace the PCM, then go to the next step.
(See PCM REMOVAL/INSTALLATION [SKYACTIV-D 2.2])

No

Go to the next step.

8

VERIFY OTHER DTCs

•  Has any other DTC or pending code been stored?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

(See DTC TABLE [PCM (SKYACTIV-D 2.2)])

No

DTC troubleshooting completed.

Step	Inspection	Results	Action
1	RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION Note • Recording can be facilitated using the screen capture function of the PC. • Record the freeze frame data/snap shot data.	—	Go to the next step.
2	VERIFY OTHER RELATED DTCs • Switch the ignition OFF, and then switch it ON (engine off). • Display the DTCs using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)]) • Has any DTC other than P244A:00 been stored?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC TABLE [PCM (SKYACTIV-D 2.2)])
2		No	Go to the next step.
3	VERIFY INPUT SIGNAL CONDITION • Start the engine. • Display the following PIDs using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)]) ― EXHPRESS_DIF • Is the PID within the specification?	Yes	Go to the next step.
3		No	Inspect the related sensors and wiring harnesses. • Malfunction in the sensor or wiring harness: ― Repair or replace the malfunctioning location, then go to Step 7. • No malfunction in the sensor, wiring harness: ― Go to the next step.
4	INSPECT FOR EXHAUST GAS LEAKAGE FROM EXHAUST SYSTEM • Visually inspect for exhaust gas leakage from exhaust system. • Is the intake air system normal?	Yes	Go to the next step.
4		No	Repair or replace the malfunctioning location, then go to Step 7.
5	INSPECT EXHAUST GAS PRESSURE SENSOR NO.2-RELATED PIPING • Visually inspect the exhaust gas pressure sensor No.2-related piping for damage, loss, or erroneous piping. (See EXHAUST GAS PRESSURE SENSOR INSPECTION [SKYACTIV-D 2.2]) • Is the exhaust gas pressure sensor No.2-related piping normal?	Yes	Go to the next step.
5		No	Repair or replace the malfunctioning location, then go to Step 7.
6	INSPECT EXHAUST GAS PRESSURE SENSOR NO.2 • Reconnect all disconnected connectors and hoses. • Inspect exhaust gas pressure sensor No.2. (See EXHAUST GAS PRESSURE SENSOR INSPECTION [SKYACTIV-D 2.2]) • Is exhaust gas pressure sensor No.2 normal?	Yes	Malfunction in the catalytic converter or the diesel particulate filter in the catalytic converter can be considered. • Replace the catalytic converter, then go to the next step. (See EXHAUST SYSTEM REMOVAL/INSTALLATION [SKYACTIV-D 2.2])
6		No	Replace exhaust gas pressure sensor No.2, then go to the next step. (See EXHAUST GAS PRESSURE SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2])
7	VERIFY THAT REPAIRS HAVE BEEN COMPLETED • Reconnect all disconnected connectors and hoses. • Refer to the [MEMORY CLEARING PROCEDURE] and clear the DTC. (See CLEARING DTC [PCM (SKYACTIV-D 2.2)]) • Display PID EXHPRESS_DIF using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)]) • Start the engine. • Race the engine at 3,500 rpm or more for 1 min. • Verify that the EXHPRESS_DIF PID value is 0.2 kPa or more. • Display the DTCs using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)]) • Has DTC P244A:00 been recorded?	Yes	Repeat the inspection from Step 1. • If the malfunction recurs, replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [SKYACTIV-D 2.2])
7		No	Go to the next step.
8	VERIFY OTHER DTCs • Has any other DTC or pending code been stored?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC TABLE [PCM (SKYACTIV-D 2.2)])
8		No	DTC troubleshooting completed.