RM3660EC _51 Engine / Hybrid System _080777 NR Series ENGINE CONTROL _0393969 SFI SYSTEM C

NR Series ENGINE CONTROL SFI SYSTEM P01902A Fuel Rail Pressure Sensor "A" Signal Stuck in Range P019064 Fuel Rail Pressure Sensor "A" Signal Plausibility Failure

DESCRIPTION

Refer to DTC P019011.

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>SFI SYSTEM>P019011201906,999999,_51,_080777,_0393969,RM100000001I1TI_02,P019011

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Memory	Note
P01902A	Fuel Rail Pressure Sensor "A" Signal Stuck in Range	When target high pressure side fuel pressure changes, the change in fuel pressure sensor value is abnormal (2 trip detection logic).	· Fuel pressure · Fuel delivery pipe · Open or short in fuel pressure sensor circuit · ECM	Comes on	DTC stored	SAE Code: P0191
P019064	Fuel Rail Pressure Sensor "A" Signal Plausibility Failure	Although engine has been stopped and left as is for a long time, high pressure side fuel pressure is higher or lower than threshold (2 trip detection logic).	· Fuel pressure · Fuel delivery pipe · Open or short in fuel pressure sensor circuit · ECM	Comes on	DTC stored	SAE Code: P0191

MONITOR DESCRIPTION

Fuel Pressure Sensor Stuck Monitor: If the fuel pressure sensor value does not follow the change in the target high pressure side fuel pressure, it is judged as a malfunction. If this malfunction is detected in 2 consecutive driving cycles, the ECM will illuminate the MIL and store DTC P01902A.

Fuel Pressure Sensor Correlation Monitor with Barometric Pressure: If the fuel pressure sensor value is less than or higher than the threshold value when a cold start is performed after the engine has been warmed up and then stopped, it is judged as a malfunction has occurred. If this malfunction is detected for 2 consecutive driving cycles, the ECM will illuminate the MIL and store DTC P019064.

MONITOR STRATEGY

Required Sensors/Components (Main)	Fuel pressure sensor
Required Sensors/Components (Related)	Atmospheric pressure sensor (ECM)
Frequency of Operation	Once per driving cycle

CONFIRMATION DRIVING PATTERN

HINT:: ·

After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>SFI SYSTEM>DTC CHECK / CLEAR201906,202304,_51,_080777,_0393969,RM100000001I1QP,202304,999999,_51,_080777,_0393969,RM100000002BZUH,

·

When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>SFI SYSTEM>DTC CHECK / CLEAR201906,202304,_51,_080777,_0393969,RM100000001I1QP,202304,999999,_51,_080777,_0393969,RM100000002BZUH,

4.344,0.823 4.594,0.417 4.594,0.417 4.76,0.417 false 0.521,0.406 2.51,0.604 1.99,0.198 10 false Vehicle Speed 1.073,2.115 1.625,2.313 0.552,0.198 10 false Idling 0.281,2.396 1.729,2.76 1.448,0.365 10 false Ignition Switch ON 1.771,2.26 2.323,2.458 0.552,0.198 10 false [A] 2.469,1.99 3.021,2.188 0.552,0.198 10 false [B] 3.896,0.594 4.448,0.792 0.552,0.198 10 false [C] 4.802,0.344 7.125,0.583 2.323,0.24 10 false There is no designated vehicle speed 2.177,3.052 3.208,3.354 1.031,0.302 10 false Warming up 3.427,3.063 4.917,3.365 1.49,0.302 10 false 15 minutes or more 6.896,3.208 7.156,3.49 0.26,0.281 10 false [F] 5.469,3.063 6.563,3.427 1.094,0.365 10 false 5 hours or more 5.896,2.198 6.448,2.396 0.552,0.198 10 false [D] 6.708,2.219 6.969,2.479 0.26,0.26 10 false [E]

Connect the GTS to the DLC3.

Turn the ignition switch to ON.

Turn the GTS on.

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

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

Turn the ignition switch to ON [A].

Turn the GTS on.

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

Drive the vehicle for 15 minutes or more [C].

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

10.

Turn the ignition switch off.

11.

With the engine stopped, leave the vehicle as is for 5 hours or more [D].

12.

Turn the ignition switch to ON [E].

13.

Turn the GTS on.

14.

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

15.

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.

16.

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

17.

Input the DTC: P01902A or P019064.

18.

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 [B] through [F] again.

·

[A] to [F]: Normal judgment procedure.

The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.

·

When clearing the permanent DTCs, do not disconnect the cable from the battery terminal or attempt to clear the DTCs during this procedure, as doing so will clear the universal trip and normal judgment histories.

WIRING DIAGRAM

Refer to DTC P019011.

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>SFI SYSTEM>P019011201906,999999,_51,_080777,_0393969,RM100000001I1TI_09,P019011

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 P01902A OR P019064)

Connect the GTS to the DLC3.

Turn the ignition switch to ON.

Turn the GTS on.

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

Read the DTCs.

Powertrain > Engine > Trouble Codes: 50001 372

Result:

Result	Proceed to
DTC P01902A or P019064 is output	A
DTC P01902A or P019064 and P008700, P008800, P017100 or P017200 are output	A
DTC P01902A or P019064 and other DTCs are output	B

HINT:: ·

If DTC P01902A or P019064 and P008700, P008800, P017100 or P017200 are output simultaneously, troubleshoot for DTC P01902A or P019064 first.

·

If any DTCs other than P01902A or P019064 are output, troubleshoot those DTCs first.

2.CHECK FUEL LEAK

GO TO DTC CHART

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>SFI SYSTEM>DIAGNOSTIC TROUBLE CODE CHART201906,202007,_51,_080777,_0393969,RM100000001I1R8,202007,202304,_51,_080777,_0393969,RM100000001RKKF,202304,999999,_51,_080777,_0393969,RM100000002C0B1,

2.CHECK FUEL LEAK

Check around and beneath the vehicle for fuel leaks, fumes, etc.

OK:: No fuel leaks present.

Result:

Proceed to
OK
NG

3.PERFORM ACTIVE TEST USING GTS (CONTROL THE TARGET FUEL PRESSURE OFFSET)

11.REPAIR OR REPLACE FUEL LEAK POINT

3.PERFORM ACTIVE TEST USING GTS (CONTROL THE TARGET FUEL PRESSURE OFFSET)

Connect the GTS to the DLC3.

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

Turn the GTS on.

Enter the following menus: Powertrain / Engine / Active Test / Control the Target Fuel Pressure Offset / Data List / Coolant Temperature and High Fuel Pressure Sensor.

Powertrain > Engine > Active Test

Active Test Display
Control the Target Fuel Pressure Offset

Data List Display
Coolant Temperature
High Fuel Pressure Sensor

50004 372 6 205,47

Check the value of the Data List item "High Fuel Pressure Sensor" when the target fuel pressure is increased and decreased using the Active Test.

Result:

Result	Proceed to
"High Fuel Pressure Sensor" value follows the change in target fuel pressure	A
"High Fuel Pressure Sensor" value does not follow the change in target fuel pressure	B

4.CHECK HARNESS AND CONNECTOR (FUEL PRESSURE SENSOR - ECM)

10.REPLACE FUEL DELIVERY PIPE

4.CHECK HARNESS AND CONNECTOR (FUEL PRESSURE SENSOR - ECM)

Disconnect the fuel pressure sensor connector.

Disconnect the ECM connector.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
C32-3 (PR) - C78-103 (PR)	Always	Below 1 Ω
C32-2 (E2) - C78-135 (EPR)	Always	Below 1 Ω
C32-3 (PR) or C78-103 (PR) - Body ground and other terminals	Always	10 kΩ or higher

Result:

Proceed to
OK
NG

5.REPLACE FUEL DELIVERY PIPE

8.REPAIR OR REPLACE HARNESS OR CONNECTOR

5.REPLACE FUEL DELIVERY PIPE

Replace the fuel delivery pipe.

Click hereEngine / Hybrid System>NR Series (FUEL)>FUEL PRESSURE SENSOR>REMOVAL201906,202205,_51,_080750,_0393848,RM100000001I0E4,202205,202304,_51,_080750,_0393848,RM10000000231T4,202304,999999,_51,_080750,_0393848,RM100000002BCBF,

HINT:: Perform "Inspection After Repair" after replacing the fuel delivery pipe.; Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>SFI SYSTEM>INITIALIZATION201906,999999,_51,_080777,_0393969,RM100000001I1RE,

Result:

Proceed to
NEXT

6.CLEAR DTC

Connect the GTS to the DLC3.

Turn the ignition switch to ON.

Turn the GTS on.

Clear the DTCs.

Powertrain > Engine > Clear DTCs: 50002 372

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

Result:

Proceed to
NEXT

7.CHECK WHETHER DTC OUTPUT RECURS (DTC P01902A OR P019064)

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

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

Read the pending DTCs.

Powertrain > Engine > Trouble Codes: 50001 372

Result:

Result	Proceed to
DTCs are not output	A
DTC P01902A or P019064 is output	B

END

9.REPLACE ECM

8.REPAIR OR REPLACE HARNESS OR CONNECTOR

Repair or replace the wire harness or connector.

Result:

Proceed to
NEXT

12.CLEAR DTC

9.REPLACE ECM

Replace the ECM.

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>ECM>REMOVAL201906,202205,_51,_080777,_0392337,RM100000001HQ1V,202205,202304,_51,_080777,_0392337,RM1000000022YB3,202304,999999,_51,_080777,_0392337,RM100000002BCAH,

Result:

Proceed to
NEXT

12.CLEAR DTC

10.REPLACE FUEL DELIVERY PIPE

Replace the fuel delivery pipe.

HINT:: Perform "Inspection After Repair" after replacing the fuel delivery pipe.; Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>SFI SYSTEM>INITIALIZATION201906,999999,_51,_080777,_0393969,RM100000001I1RE,

Result:

Proceed to
NEXT

12.CLEAR DTC

11.REPAIR OR REPLACE FUEL LEAK POINT

Repair or replace the fuel leak point.

Result:

Proceed to
NEXT

12.CLEAR DTC

Connect the GTS to the DLC3.

Turn the ignition switch to ON.

Turn the GTS on.

Clear the DTCs.

Powertrain > Engine > Clear DTCs: 50002 372

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

Result:

Proceed to
NEXT

13.CHECK WHETHER DTC OUTPUT RECURS (DTC P01902A OR P019064)

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

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

Read the pending DTCs.

Powertrain > Engine > Trouble Codes: 50001 372

OK:: DTCs are not output

Result:

Proceed to
NEXT

END