RM35X0E _51 Engine / Hybrid System _078720 7GR-FKS ENGINE CONTROL _0381907 SFI SYSTEM C

7GR-FKS ENGINE CONTROL  SFI SYSTEM  P019015  Fuel Rail Pressure Sensor "A" Circuit Short to Battery or Open  


DESCRIPTION

Refer to DTC P019011.

Click hereEngine / Hybrid System>7GR-FKS (ENGINE CONTROL)>SFI SYSTEM>P019011

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
P019015 Fuel Rail Pressure Sensor "A" Circuit Short to Battery or Open The fuel pressure sensor (for high pressure side) output voltage is higher than 4.9 V for 3 seconds or more (1 trip detection logic).
·

Open or short in fuel pressure sensor (for high pressure side) circuit

·

Fuel pressure sensor (for high pressure side)

·

ECM


Comes on DTC stored SAE Code: P0193

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 / Fuel Pressure (High).

DTC No. Fuel Pressure (High) Malfunction
P019015 Approximately 32000 kPag or higher
·

Short in VC to PR circuit

·

Open in PR circuit

·

Open in ETHW circuit



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


MONITOR DESCRIPTION

This DTC is stored if the fuel pressure sensor (for high pressure side) output voltage is out of the standard range due to an open or short in the sensor circuit.

Example:

If the fuel pressure sensor (for high pressure side) output voltage is higher than 4.9 V for 3 seconds or more, the ECM stores this DTC.

MONITOR STRATEGY

Required Sensors/Components Fuel pressure sensor (for high pressure side)
Frequency of Operation Continuous

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.

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.

Input the DTC: P019015.

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.

·

If the judgment result is INCOMPLETE, perform steps [B] through [C] 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 TERMINAL VOLTAGE (POWER SOURCE OF FUEL PRESSURE SENSOR (FOR HIGH PRESSURE SIDE))
A327836C86
0.531,1.125 0.885,1.385 0.354,0.26 1.021,1.75 1.521,1.292 true 1.646,1.802 1.729,1.302 true 2.333,1.719 1.917,1.302 true 0.198,0.135 0.51,0.333 0.313,0.198 10 false *a 0.604,1.167 0.969,1.385 0.365,0.219 10 false E59 0.906,1.771 1.219,1.969 0.313,0.198 10 false VC 1.583,1.844 1.896,2.042 0.313,0.198 10 false E2 2.313,1.75 2.625,1.948 0.313,0.198 10 false PR
*a Front view of wire harness connector
(to Fuel Pressure Sensor (for High Pressure Side))


HINT:

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


a.

Disconnect the fuel pressure sensor (for high pressure side) 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
E59-1 (VC) - E59-2 (E2) Ignition switch ON 4.75 to 5.25 V
E59-3 (PR) - E59-2 (E2) Ignition switch ON 3.0 to 5.25 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
E59-2 (E2) - Body ground Ignition switch off Below 1 Ω
E59-1 (VC) - E59-3 (PR) Ignition switch off 171 to 189 kΩ



HINT:

Perform "Inspection After Repair" after replacing the fuel pressure sensor (for high pressure side).

Click hereEngine / Hybrid System>7GR-FKS (ENGINE CONTROL)>SFI SYSTEM>INITIALIZATION


Result:
Proceed to
OK
NG



OK

REPLACE FUEL DELIVERY PIPE WITH SENSOR ASSEMBLY LH (FUEL PRESSURE SENSOR (FOR HIGH PRESSURE SIDE))

Click hereEngine / Hybrid System>7GR-FKS (FUEL)>FUEL PRESSURE SENSOR (for High Pressure)>REMOVAL


NG

2.CHECK HARNESS AND CONNECTOR (FUEL PRESSURE SENSOR (FOR HIGH PRESSURE SIDE) - ECM)
2.CHECK HARNESS AND CONNECTOR (FUEL PRESSURE SENSOR (FOR HIGH PRESSURE SIDE) - ECM)
a.

Disconnect the fuel pressure sensor (for high pressure side) 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
E59-3 (PR) - E2-20 (PR) Always Below 1 Ω
E59-2 (E2) - E1-23 (ETHW) Always Below 1 Ω
E59-3 (PR) or E2-20 (PR) - Other terminals Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

REPLACE ECM

Click hereEngine / Hybrid System>7GR-FKS (ENGINE CONTROL)>ECM>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR