RM36D0EC _51 Engine / Hybrid System _083058 M20D-FKS ENGINE CONTROL _0401834 SFI SYSTEM C

M20D-FKS ENGINE CONTROL  SFI SYSTEM  P24521C  Particulate Filter Pressure Sensor "A" Circuit Voltage Out of Range  


DESCRIPTION

Refer to DTC P244B00.

Click hereEngine / Hybrid System>M20D-FKS (ENGINE CONTROL)>SFI SYSTEM>P244B00

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
P24521C Particulate Filter Pressure Sensor "A" Circuit Voltage Out of Range Differential pressure sensor value at intake air flow of 25 gm/sec or higher is below 1 kPa for 5 seconds or more (1 trip detection logic).
·

Incorrect vacuum transmitting hose assembly

·

Differential pressure sensor


- DTC stored SAE: P2453

MONITOR DESCRIPTION

When the differential pressure sensor output is output with the positive and negative values reversed, incorrect connection of the differential pressure sensor and vacuum transmitting hose assembly is judged and the ECM stores a DTC.

CONFIRMATION DRIVING PATTERN

1.
A288927
1.333,2.854 1.594,2.438 1.594,2.438 1.75,2.438 false 0.99,0.51 2.219,0.708 1.229,0.198 10 false 80 km/h 1.01,1.385 2.24,1.583 1.229,0.198 10 false 60 km/h 1.208,2.25 2.292,2.458 1.083,0.208 10 false Idling 0.292,2.875 1.729,3.104 1.438,0.229 10 false Ignition switch ON 2.021,2.417 3.25,2.615 1.229,0.198 10 false [A] 2.646,2.125 3.333,2.469 0.688,0.344 10 false [B] 4,0.729 4.469,1 0.469,0.271 10 false [C] 2.344,2.927 3.573,3.125 1.229,0.198 10 false Warming up 3.5,2.927 4.906,3.146 1.406,0.219 10 false 10 seconds or more 5.01,3.344 5.948,3.563 0.938,0.219 10 false [D]

2.

Connect the GTS to the DLC3.

3.

Turn the ignition switch to ON.

4.

Turn the GTS on.

5.

Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).

6.

Turn the ignition switch off and wait for at least 30 seconds.

7.

Turn the ignition switch to ON [A].

8.

Turn the GTS on.

9.

Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher [B].

10.

With the shift lever in M or 2nd gear, drive the vehicle at 60 to 80 km/h (37 to 50 mph) for 10 seconds or more [C].

CAUTION:

When performing the confirmation driving pattern, obey all speed limits and traffic laws.


11.

Turn the GTS on.

12.

Enter the following menus: Powertrain / Engine / Trouble Codes [D].

13.

Read the pending DTCs.

HINT:
·

If a pending DTC is output, the system is malfunctioning.

·

If a pending DTC is not output, perform the following procedure.



14.

Enter the following menus: Powertrain / Engine / Utility / All Readiness.

15.

Input the DTC: P24521C.

16.

Check the DTC judgment result.

GTS Display Description
NORMAL
·

DTC judgment completed

·

System normal


ABNORMAL
·

DTC judgment completed

·

System abnormal


INCOMPLETE
·

DTC judgment not completed

·

Perform driving pattern after confirming DTC enabling conditions



HINT:
·

If the judgment result is NORMAL, the system is normal.

·

If the judgment result is ABNORMAL, the system has a malfunction.

·

If the judgment result is INCOMPLETE, perform steps [C] and [D] again.




CAUTION / NOTICE / HINT

HINT:

Read Freeze Frame Data using the GTS. The ECM records vehicle and driving condition information as Freeze Frame Data the moment a DTC is stored. When troubleshooting, Freeze Frame Data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.


PROCEDURE

1.CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P24521C)
a.

Read the DTCs.

Powertrain > Engine > Trouble Codes
50001 372
Result:
Result Proceed to
DTC P24521C is output A
DTC P24521C and other DTCs are output B


HINT:

If any DTCs other than P24521C are output, troubleshoot those DTCs first.




A

2.CHECK VACUUM TRANSMITTING HOSE ASSEMBLY (DIFFERENTIAL PRESSURE SENSOR - EXHAUST MANIFOLD)

B

GO TO DTC CHART

2.CHECK VACUUM TRANSMITTING HOSE ASSEMBLY (DIFFERENTIAL PRESSURE SENSOR - EXHAUST MANIFOLD)
A525436C01
1.417,2.719 1.24,2.719 1.24,2.719 1.5,1.865 true 1.979,1.052 2.573,0.198 2.573,0.198 2.698,0.198 true 4.323,1.729 4.802,0.49 4.802,0.49 5,0.49 true 2.938,3.313 3.094,3.313 3.094,3.313 3.99,2.635 true 1.469,2.646 1.781,2.844 0.313,0.198 10 false *2 2.74,0.125 3.052,0.323 0.313,0.198 10 false *1 5.052,0.448 5.365,0.646 0.313,0.198 10 false *1 2.75,3.25 3.063,3.448 0.313,0.198 10 false *2
*1 Differential Pressure Sensor *2 Vacuum Transmitting Hose Assembly


a.

Check if vacuum transmitting hose assembly between the differential pressure sensor and the exhaust manifold is correct.


b.

Check that there is no exhaust gas leak between the differential pressure sensor and the exhaust manifold.


Result:
Proceed to
OK
NG



OK

3.INSPECT DIFFERENTIAL PRESSURE SENSOR

NG

REPAIR OR REPLACE MALFUNCTIONING PARTS

3.INSPECT DIFFERENTIAL PRESSURE SENSOR

Click hereEngine / Hybrid System>M20D-FKS (EMISSION CONTROL)>DIFFERENTIAL PRESSURE SENSOR>ON-VEHICLE INSPECTION

Result:
Proceed to
OK
NG



OK

4.CLEAR DTC

NG

6.REPLACE DIFFERENTIAL PRESSURE SENSOR
4.CLEAR DTC
a.

Clear the DTCs.

Powertrain > Engine > Clear DTCs
50002 372

b.

Turn the ignition switch off and wait for at least 30 seconds.


Result:
Proceed to
NEXT



NEXT

5.CHECK WHETHER DTC OUTPUT RECURS (DTC P24521C)
5.CHECK WHETHER DTC OUTPUT RECURS (DTC P24521C)
a.

Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.


b.

Read the pending DTCs.

Powertrain > Engine > Trouble Codes
50001 372
OK:

DTCs are not output



Result:
Proceed to
NEXT



NEXT

END

6.REPLACE DIFFERENTIAL PRESSURE SENSOR
a.

Replace the differential pressure sensor.

Click hereEngine / Hybrid System>M20D-FKS (EMISSION CONTROL)>DIFFERENTIAL PRESSURE SENSOR>REMOVAL


b.

Start the engine and allow it to idle until the engine coolant temperature reaches 75°C (167°F) or higher.


c.

Idle the engine for 7 minutes.


d.

With the vehicle stationary, depress the accelerator pedal and maintain an engine speed of 2500 rpm for 2 minutes.


e.

Turn the ignition switch off and wait for 30 seconds or more.


Result:
Proceed to
NEXT



NEXT

END