DTC P1714 Throttle Position Sensor Power Supply Circuit

WARNING: This page is about a different variant/trim than selected.

DTC DETECTING CONDITION:

The power supply circuit of accelerator pedal position sensor is open or shorted.

TROUBLE SYMPTOM:

WIRING DIAGRAM:

Fig 1: Wiring Diagram - Throttle Position Sensor Power Supply Circuit

Courtesy of SUBARU OF AMERICA, INC.

DTC P1714 DIAGNOSTIC PROCEDURE

Step	CHECK	Yes	No
1 CHECK HARNESS CONNECTOR BETWEEN TCM AND ACCELERATOR PEDAL POSITION SENSOR. Disconnect the connector from TCM. Measure the resistance of harness between TCM and accelerator pedal position sensor connector. Connector & terminal (B54) No. 10 - (B315) No. 1:	Is the resistance less than 1 Ω?	Go to step 2 .	Repair the open circuit in harness between TCM and accelerator pedal position sensor connector, and poor contact in coupling connector.
2 CHECK HARNESS CONNECTOR BETWEEN TCM AND ACCELERATOR PEDAL POSITION SENSOR. Measure the resistance of harness between TCM connector and chassis ground. Connector & terminal (B54) No. 10 - Chassis ground:	Is the resistance more than 1 MΩ?	Go to step 3 .	Repair the short circuit in harness between TCM and accelerator pedal position sensor connector.
3 CHECK HARNESS CONNECTOR BETWEEN TCM AND ECM. Connect all the connectors. Turn the ignition switch to ON. Measure the voltage between TCM and chassis ground. Connector & terminal (B54) No. 10 (+) - Chassis ground (-):	Is the voltage 4.6 - 5.4 V?	Go to step 4 .	Even if the SPORT indicator light is blinking, the circuit has returned to normal condition at this time. A temporary poor contact of connector or harness may be the cause. Repair the harness or connector in accelerator pedal position sensor circuit.
4 CHECK POOR CONTACT.	Is there poor contact in accelerator pedal position sensor circuit?	Repair the poor contact.	Replace the TCM. < Ref. to TRANSMISSION CONTROL MODULE (TCM) . >