RM36D0EC _51 Engine / Hybrid System _087036 M20C-FKS ENGINE CONTROL _0418131 SFI SYSTEM C

M20C-FKS ENGINE CONTROL  SFI SYSTEM  U060187  Lost Communication with Particulate Filter Pressure Sensor "A" Missing Message  


DESCRIPTION

A differential pressure sensor is installed to monitor the pressure before the GPF (Gasoline Particulate Filter) catalytic converter. The sensor detects the pressure difference between atmospheric pressure and the pressure before the GPF catalyst, converts the value to a digital signal, and outputs it to the ECM. The sensor also has a self-diagnostic function, which outputs a digital signal to the ECM if an internal sensor malfunction is detected.

A523623E02
1.688,3.438 1.552,3.438 1.552,3.438 1.177,3.219 true 1.885,2.333 1.75,2.344 1.75,2.344 1.26,2.635 true 2.615,0.323 2.229,0.573 true 2.385,1.115 2.115,1.219 true 0.417,1.052 1.417,1.25 1,0.198 10 false Exhaust Gas 2.646,0.25 3.083,0.49 0.438,0.24 10 false ECM 2,1.833 3.469,2.083 1.469,0.25 10 false Atmospheric Pressure 1.917,2.25 4.083,2.792 2.167,0.542 10 false GPF Catalyst 4.99,3.177 6.385,3.438 1.396,0.26 10 false Pressure (kPa [psi]) 3.813,0.604 4.625,1.01 0.813,0.406 10 false Sensor Data Value 4.229,1.25 4.667,1.5 0.438,0.25 10 false 3896 4.25,2.125 4.688,2.375 0.438,0.25 10 false 193 4.698,2.51 4.948,2.813 0.25,0.302 10 false -5 6,2.531 6.271,2.823 0.271,0.292 10 false 150 4.938,0.771 6.302,0.99 1.365,0.219 10 false Differential Pressure 2.438,1.052 3.719,1.427 1.281,0.375 10 false Differential Pressure Sensor 4.521,2.792 4.875,3 0.354,0.208 10 false [-0.7] 6.01,2.792 6.698,3.01 0.688,0.219 10 false [22] 1.729,3.354 4.094,3.688 2.365,0.333 10 false Front Exhaust Pipe Assembly

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
U060187 Lost Communication with Particulate Filter Pressure Sensor "A" Missing Message An interruption of SENT communication of the differential pressure sensor is detected inside the ECM for 1 second (2 trip detection logic).
·

Open or short in differential pressure sensor circuit

·

Differential pressure sensor

·

ECM


- DTC stored SAE: U0601

MONITOR DESCRIPTION

If a communication error occurs between the ECM and differential pressure sensor, the ECM stores this DTC.

CONFIRMATION DRIVING PATTERN

1.

Connect the GTS to the DLC3.

2.

Turn the ignition switch to ON.

3.

Turn the GTS on.

4.

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

5.

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

6.

Turn the ignition switch to ON.

7.

Turn the GTS on.

8.

Wait 5 seconds or more.

9.

Enter the following menus: Powertrain / Engine / Trouble Codes.

10.

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.



11.

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

12.

Input the DTC: U060187

13.

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 is malfunctioning.




WIRING DIAGRAM

A523624E03
1.031,2.219 5.313,2.417 4.281,0.198 10 false Differential Pressure Sensor 1.031,2.021 1.49,2.219 0.458,0.198 10 false C72 2.521,1.094 2.677,1.292 0.156,0.198 10 false 1 2.521,1.521 2.677,1.719 0.156,0.198 10 false 2 2.521,0.615 2.677,0.813 0.156,0.198 10 false 3 2.198,0.729 2.51,0.927 0.313,0.198 10 false VC 2.021,1.219 2.635,1.417 0.615,0.198 10 false PESE 2.219,1.646 2.531,1.844 0.313,0.198 10 false E2 5.5,2.344 5.958,2.542 0.458,0.198 10 false ECM 5.135,2.333 5.594,2.531 0.458,0.198 10 false C71 4.927,0.646 5.542,0.844 0.615,0.198 10 false VSPE 4.927,1.125 5.542,1.323 0.615,0.198 10 false PESE 4.927,1.531 5.542,1.729 0.615,0.198 10 false ESPE 5.667,0.448 6.125,0.646 0.458,0.198 10 false 5 V 4.594,0.635 4.906,0.833 0.313,0.198 10 false 128 4.594,1.104 4.906,1.302 0.313,0.198 10 false 164 4.594,1.521 4.906,1.719 0.313,0.198 10 false 163

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 HARNESS AND CONNECTOR (DIFFERENTIAL PRESSURE SENSOR - ECM)
a.

Disconnect the differential pressure sensor connector.


b.

Disconnect the ECM connector.


c.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
C72-3 (VC) - C71-128 (VSPE) Always Below 1 Ω
C72-1 (PESE) - C71-164 (PESE) Always Below 1 Ω
C72-2 (E2) - C71-163 (ESPE) Always Below 1 Ω
C72-3 (VC) or C71-128 (VSPE) - Body ground and other terminals Always 10 kΩ or higher
C72-1 (PESE) or C71-164 (PESE) - Body ground and other terminals Always 10 kΩ or higher
C72-2 (E2) or C71-163 (ESPE) - Body ground and other terminals Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

2.CHECK HARNESS AND CONNECTOR

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

2.CHECK HARNESS AND CONNECTOR
A527073C02
0.427,0.906 0.823,1.208 0.396,0.302 1.063,1.656 1.479,1.24 true 1.76,1.74 1.75,1.25 true 2.479,1.708 2.01,1.24 true 0.198,0.156 0.51,0.354 0.313,0.198 10 false *a 0.479,0.979 0.938,1.177 0.458,0.198 10 false C72 2.427,1.74 2.74,1.938 0.313,0.198 10 false VC 1.698,1.771 2.01,1.969 0.313,0.198 10 false E2 0.781,1.688 1.396,1.885 0.615,0.198 10 false PESE
*a Front view of wire harness connector
(to Differential Pressure Sensor)


a.

Disconnect the differential pressure sensor connector.


b.

Turn the ignition switch to ON.


c.

Measure the voltage according to the value(s) in the table below.

Standard Voltage:
Tester Connection Condition Specified Condition
C72-3 (VC) - C72-2 (E2) Ignition switch ON 4.5 to 5.5 V
C72-1 (PESE) - C72-2 (E2) Ignition switch ON 4.5 to 5.5 V



d.

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


e.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
C72-2 (E2) - Body ground Ignition switch off Below 1 Ω



Result:
Proceed to
OK
NG



OK

REPLACE DIFFERENTIAL PRESSURE SENSOR

Click hereEngine / Hybrid System>M20C-FKS (EMISSION CONTROL)>DIFFERENTIAL PRESSURE SENSOR>REMOVAL


NG

REPLACE ECM

Click hereEngine / Hybrid System>M20C-FKS (ENGINE CONTROL)>ECM>REMOVAL