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

7GR-FKS ENGINE CONTROL SFI SYSTEM P107A11 Fuel Rail Pressure Sensor (Low) / Fuel Rail Pressure Sensor "B" Circuit Short to Ground

DESCRIPTION

0.135,0.708 1.406,1 1.271,0.292 10 false Voltage (V) 0.344,1.031 0.573,1.24 0.229,0.208 10 false 4.5 0.333,2.156 0.854,2.417 0.521,0.26 10 false 0.75 0.74,2.438 0.854,2.646 0.115,0.208 10 false 0 2.521,2.438 2.927,2.708 0.406,0.271 10 false 750 0.469,2.844 3.354,3.115 2.885,0.271 10 false Fuel Pressure (for Low Pressure Side) (kPa) 0.51,0.042 3,0.385 2.49,0.344 10 false Characteristics of Fuel Pressure Sensor (for Low Pressure Side):

The fuel pressure sensor (for low pressure side) replaces the fuel pressure with electrical signals and outputs them to the ECM. The ECM controls the optimal fuel pressure for the operation conditions to reduce the fuel pump power consumption and improve fuel economy.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Memory	Note
P107A11	Fuel Rail Pressure Sensor (Low) / Fuel Rail Pressure Sensor "B" Circuit Short to Ground	The fuel pressure sensor (for low pressure side) output voltage is less than 0.43 V for 3 seconds or more (1 trip detection logic).	· Open or short in fuel pressure sensor (for low pressure side) circuit · Fuel pressure sensor (for low pressure side) · ECM	Comes on	DTC stored	SAE Code: P107C

HINT:

When this DTC is output, check the fuel pressure (for low pressure side) in the Data List. Enter the following menus: Powertrain / Engine / Data List / Fuel Pressure (Low) / Fuel Pressure 2.

DTC No.	Fuel Pressure (Low) / Fuel Pressure 2	Malfunction
P107A11	Approximately 0 kPag	· Short to ground in PFL circuit · Short in PFL to EPFL circuit · Open in VCPF 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 low pressure side) output voltage is out of the standard range due to an open or short in the sensor circuit.

MONITOR STRATEGY

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

CONFIRMATION DRIVING PATTERN

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.

Start the engine.

Idle the engine for 10 seconds or more [A].

Turn the GTS on

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

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: P107A11.

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 [A] through [B] again.

WIRING DIAGRAM

0.406,2.865 0.719,3.042 0.313,0.177 10 false E60 0.427,3.021 3.5,3.49 3.073,0.469 10 false Fuel Pressure Sensor (for Low Pressure Side) 1.365,1.01 1.667,1.198 0.302,0.188 10 false VC 1.375,2.479 1.656,2.688 0.281,0.208 10 false E2 4.292,1.021 4.604,1.198 0.313,0.177 10 false E2 4.292,1.719 4.583,1.896 0.292,0.177 10 false E2 4.281,2.5 4.594,2.677 0.313,0.177 10 false E1 4.302,0.844 4.615,1.021 0.313,0.177 10 false 23 4.281,1.51 4.573,1.688 0.292,0.177 10 false 28 4.271,2.292 4.583,2.469 0.313,0.177 10 false 23 4.625,0.896 5.125,1.083 0.5,0.188 10 false VC 4.635,1.615 4.99,1.813 0.354,0.198 10 false PFL 4.625,2.344 5.146,2.531 0.521,0.188 10 false ETHW 5.635,0.604 5.906,0.792 0.271,0.188 10 false 5 V 5.375,3.104 5.75,3.292 0.375,0.188 10 false ECM 1.719,0.896 1.896,1.063 0.177,0.167 10 false 1 1.719,2.365 1.896,2.531 0.177,0.167 10 false 3 1.719,1.594 1.896,1.76 0.177,0.167 10 false 2 5.333,1.417 5.885,1.615 0.552,0.198 10 false 180 kΩ 1.323,1.719 1.677,1.917 0.354,0.198 10 false PFL

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

0.469,1 0.844,1.24 0.375,0.24 1.167,1.781 1.542,1.281 true 1.698,1.792 1.75,1.292 true 2.417,1.781 1.917,1.26 true 0.094,0.073 0.406,0.271 0.313,0.198 10 false *a 0.531,1.042 0.99,1.24 0.458,0.198 10 false E60 1.042,1.802 1.354,2 0.313,0.198 10 false VC 2.365,1.813 2.677,2.01 0.313,0.198 10 false E2 1.615,1.813 1.927,2.01 0.313,0.198 10 false PFL

*a	Front view of wire harness connector (to Fuel Pressure Sensor (for Low Pressure Side))

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

Disconnect the fuel pressure sensor (for low pressure side) connector.

Turn the ignition switch to ON.

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

Standard Voltage:

Tester Connection	Condition	Specified Condition
E60-1 (VC) - E60-3 (E2)	Ignition switch ON	4.75 to 5.25 V
E60-2 (PFL) - E60-3 (E2)	Ignition switch ON	4.4 to 5.6 V

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

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
E60-1 (VC) - E60-2 (PFL)	Ignition switch off	171 to 189 kΩ

HINT:: Perform "Inspection After Repair" after replacing the fuel pressure sensor (for low pressure side).; Click hereEngine / Hybrid System>7GR-FKS (ENGINE CONTROL)>SFI SYSTEM>INITIALIZATION201902,999999,_51,_078720,_0381907,RM100000001G2VV,

Result:

Proceed to
OK
NG

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

Click hereEngine / Hybrid System>7GR-FKS (FUEL)>FUEL PRESSURE SENSOR>REMOVAL201902,201906,_51,_079024,_0383262,RM100000001G9WI,201906,202310,_51,_079024,_0383262,RM100000001IZVN,202310,999999,_51,_079024,_0383262,RM100000002G332,

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

Disconnect the fuel pressure sensor (for low pressure side) connector.

Disconnect the ECM connector.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
E60-1 (VC) - E2-23 (VC)	Always	Below 1 Ω
E60-2 (PFL) or E2-28 (PFL) - Body ground and other terminals	Always	10 kΩ or higher

Result:

Proceed to
OK
NG

REPLACE ECM

Click hereEngine / Hybrid System>7GR-FKS (ENGINE CONTROL)>ECM>REMOVAL201902,201906,_51,_078720,_0381918,RM100000001G2Y7,201906,202310,_51,_078720,_0381918,RM100000001IOND,202310,999999,_51,_078720,_0381918,RM100000002G3CO,

REPAIR OR REPLACE HARNESS OR CONNECTOR