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

NR Series ENGINE CONTROL  SFI SYSTEM  P019011  Fuel Rail Pressure Sensor "A" Circuit Short to Ground  


DESCRIPTION

A435985E08
0.052,0.073 7.156,0.271 7.104,0.198 10 false Characteristics of Fuel Pressure Sensor: 1.708,0.667 4.458,0.865 2.75,0.198 10 false Output Voltage (V) 2.031,1.073 2.49,1.271 0.458,0.198 10 false 4.5 2.021,2.385 2.479,2.583 0.458,0.198 10 false 0.5 2.458,2.677 2.615,2.875 0.156,0.198 10 false 0 4.49,2.698 5.104,2.896 0.615,0.198 10 false 30.0 5.083,2.542 6.969,3.313 1.885,0.771 10 false Fuel Pressure [MPa(gauge)]

The fuel pressure sensor is installed on the fuel delivery pipe. The fuel pressure sensor changes the fuel pressure for high pressure side into an electrical signal and sends the signal to the ECM. Then the ECM controls the pump discharge using this feedback to maintain the fuel's target pressure between 2.4 and 30 MPa (25 and 306 kgf/cm2, 348 and 4352 psi).

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
P019011 Fuel Rail Pressure Sensor "A" Circuit Short to Ground Diagnosis Condition:
·

5 seconds or more have elapsed after the engine started


Abnormal condition:
·

The fuel pressure sensor output voltage is less than 0.2933 V.


Malfunction Time:
·

3 seconds or more


Trip logic:
·

1 trip detection logic


Detection Conditions:
·

Continuous


Sensors/components used for detection:
·

Fuel pressure sensor


·

Open or short in fuel pressure sensor circuit

·

Fuel delivery pipe

·

ECM


Comes on DTC stored SAE Code: P0192

HINT:

When this DTC is output, check the fuel pressure (for high pressure side) in the Data List. Enter the following menus: Powertrain / Engine / Data List / High Fuel Pressure Sensor.

DTC No. High Fuel Pressure Sensor Malfunction
P019011 Approximately 0 MPa
·

Short to ground in PR circuit

·

Short in PR to EPR circuit

·

Open in VCPR circuit



If the Data List values is normal it may be due to a temporary recovery from the malfunction condition. Check for intermittent problems.

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>SFI SYSTEM>CHECK FOR INTERMITTENT PROBLEMS


MONITOR DESCRIPTION

5 seconds or more after the engine has started, if the output voltage of the fuel pressure sensor is less than 0.2933 V for 3 seconds or more, the ECM determines that the fuel pressure sensor circuit is malfunctioning and illuminates the MIL and stores a DTC.

MONITOR STRATEGY

Frequency of Operation Continuous

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 / CLEAR

·

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

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>SFI SYSTEM>DTC CHECK / CLEAR



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.

Start the engine [A].

7.

Idle the engine for 10 seconds [B].

8.

Turn the GTS on.

9.

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

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.

Proceed to the next screen and enter the DTC to be checked.

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 has a malfunction.

·

[A] to [C]: 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

A402064E19
1.406,1.031 1.719,1.229 0.313,0.198 10 false VC 1.698,0.927 1.917,1.229 0.219,0.302 10 false 1 1.406,1.719 1.771,1.979 0.365,0.26 10 false PR 1.708,1.604 1.917,1.833 0.208,0.229 10 false 3 1.448,2.49 1.76,2.688 0.313,0.198 10 false E2 1.729,2.375 1.885,2.573 0.156,0.198 10 false 2 0.396,2.896 0.719,3.125 0.323,0.229 10 false C32 0.396,3.073 3.406,3.417 3.01,0.344 10 false Fuel Pressure Sensor (Fuel Delivery Pipe) 4.917,3.115 5.323,3.458 0.406,0.344 10 false C78 5.25,3.115 5.688,3.365 0.438,0.25 10 false ECM 4.271,0.917 4.594,1.198 0.323,0.281 10 false 136 4.625,0.917 5.188,1.208 0.563,0.292 10 false VCPR 5.615,0.698 6.073,0.896 0.458,0.198 10 false 5 V 4.271,1.604 4.583,1.802 0.313,0.198 10 false 103 4.625,1.604 4.969,1.865 0.344,0.26 10 false PR 4.271,2.375 4.573,2.625 0.302,0.25 10 false 135 4.604,2.396 5.063,2.594 0.458,0.198 10 false EPR 5.271,1.417 5.927,1.75 0.656,0.333 10 false 180 kΩ

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.READ VALUE USING GTS (HIGH FUEL PRESSURE SENSOR)
HINT:

Make sure that the connector is properly connected. If it is not, securely connect it and check for DTCs again.


a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Enter the following menus: Powertrain / Engine / Data List / High Fuel Pressure Sensor.

Powertrain > Engine > Data List
Tester Display
High Fuel Pressure Sensor
50003 372 47

e.

Record the High Fuel Pressure Sensor value.


f.

Turn the ignition switch off.


g.

Turn the GTS off.


h.

Disconnect the fuel pressure sensor connector.


i.

Turn the ignition switch to ON.


j.

Turn the GTS on.


k.

Enter the following menus: Powertrain / Engine / Data List / High Fuel Pressure Sensor.

Powertrain > Engine > Data List
Tester Display
High Fuel Pressure Sensor
50003 372 47

l.

Compare the Data List value when the connector is connected and when the connector is not connected.

Result:
Result Proceed to
The value of High Fuel Pressure Sensor changes A
The value of High Fuel Pressure Sensor does not change B




A

2.CHECK TERMINAL VOLTAGE (FUEL PRESSURE SENSOR)

B

4.CHECK TERMINAL VOLTAGE (FUEL PRESSURE SENSOR)
2.CHECK TERMINAL VOLTAGE (FUEL PRESSURE SENSOR)
A403507C49
0.615,1.094 0.99,1.385 0.375,0.292 1.094,1.719 1.51,1.302 true 0.135,0.125 0.448,0.323 0.313,0.198 10 false *a 0.688,1.167 1,1.406 0.313,0.24 10 false C32 0.938,1.75 1.25,1.948 0.313,0.198 10 false VC
*a Front view of wire harness connector
(to Fuel Pressure Sensor)


a.

Disconnect the fuel 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
C32-1 (VC) - Body ground Ignition switch ON 4.75 to 5.25 V



Result:
Proceed to
OK
NG


HINT:

Perform "Inspection After Repair" after replacing the fuel delivery pipe.

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>SFI SYSTEM>INITIALIZATION



OK

REPLACE FUEL DELIVERY PIPE

Click hereEngine / Hybrid System>NR Series (FUEL)>FUEL PRESSURE SENSOR>REMOVAL


NG

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

Disconnect the fuel 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
C32-1 (VC) - C78-136 (VCPR) Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

REPLACE ECM

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>ECM>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

4.CHECK TERMINAL VOLTAGE (FUEL PRESSURE SENSOR)
A403507C51
0.615,1.094 0.99,1.385 0.375,0.292 2.365,1.729 1.927,1.292 true 0.135,0.125 0.448,0.323 0.313,0.198 10 false *a 0.688,1.167 1,1.406 0.313,0.24 10 false C32 2.323,1.76 2.635,1.958 0.313,0.198 10 false PR
*a Front view of wire harness connector
(to Fuel Pressure Sensor)


a.

Disconnect the fuel 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
C32-3 (PR) - Body ground Ignition switch ON 3.0 to 5.25 V



Result:
Proceed to
OK
NG



OK

REPLACE ECM

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>ECM>REMOVAL


NG

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

Disconnect the fuel 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
C32-3 (PR) or C78-103 (PR) - Body ground and other terminals Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

REPLACE ECM

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>ECM>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR