DTC P107C: Fuel Rail Low Pressure Sensor (Low); DTC P107D: Fuel Rail Low Pressure Sensor (High) [11/2016 - ]: Description

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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
P107C	Fuel Rail Low Pressure Sensor (Low)	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 Delivery Pipe with Sensor Assembly (fuel pressure sensor (for low pressure side)) ECM	Comes on	DTC stored
P107D	Fuel Rail Low Pressure Sensor (High)	The fuel pressure sensor (for low pressure side) output voltage is higher than 4.85 V for 3 seconds or more (1 trip detection logic).	Open or short in fuel pressure sensor (for low pressure side) circuit Fuel Delivery Pipe with Sensor Assembly (fuel pressure sensor (for low pressure side)) ECM	Comes on	DTC stored

HINT:

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

Low Fuel Pressure Sensor	Malfunction
Approximately 0 kPa (gauge) [0 psi (gauge)]	Short to ground in PFL circuit Short in PFL to EPFL circuit Open in VCPF circuit
Approximately 720 kPa (gauge) [104 psi (gauge)] or higher	Short in VCPF to PFL circuit Open in PFL circuit Open in EPFL circuit

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

Refer to CHECK FOR INTERMITTENT PROBLEMS [11/2016 - ]