AutoCodes – Ford – P0123 Ford

P0123 Ford Code - Throttle/Pedal Position Sensor 'A' Circuit High

Quick Answer

The Throttle Position Sensor (TPS) responds to the accelerator pedal movement. Common causes include Faulty throttle position sensor, Throttle position sensor harness is open or shorted, Throttle position sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P0123 Ford indicates Throttle/Pedal Position Sensor 'A' Circuit High.
Common causes: Common causes include Faulty throttle position sensor, Throttle position sensor harness is open or shorted, Throttle position sensor circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 31,787

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P0123 Ford Description

The Throttle Position Sensor (TPS) responds to the accelerator pedal movement. This sensor is a kind of potentiometer which transforms the throttle position into output voltage, and emits the voltage signal to the Engine Control Module (ECM). In addition, the sensor detects the opening and closing speed of the throttle valve and feeds the voltage signal to the ECM.
Idle position of the throttle valve is determined by the ECM receiving the signal from the throttle position sensor. This sensor controls engine operation such as fuel cut. On the other hand, the Wide open and closed throttle position switch, which is built into the throttle position sensor unit, is not used for engine control.

OBDII Code P0123 Ford - Throttle/Pedal Position Sensor 'A' Circuit High - AutoCodes.com — P0123 Ford Code - Throttle/Pedal Position Sensor 'A' Circuit High

What does this mean?

What are the Possible Causes of the DTC P0123 Ford?

Faulty throttle position sensor
Throttle position sensor harness is open or shorted
Throttle position sensor circuit poor electrical connection

How to Fix the DTC P0123 Ford?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0123 Ford code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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Information for Specific Ford Models

P0123 1997 Ford F150 — Throttle Position Circuit High Input
P0123 1998 Ford F150 — Throttle Position Circuit High Input
P0123 1999 Ford F150 — Throttle Position Circuit High Input
P0123 2000 Ford F150 — Throttle Position Circuit High Input
P0123 2001 Ford F150 — Throttle Position Circuit High Input
P0123 2002 Ford F150 — Throttle Position Circuit High Input
P0123 2003 Ford F150 — Throttle Position Circuit High Input
P0123 2006 Ford Fusion — Throttle/Pedal Position Sensor 'A' Circuit High
P0123 2007 Ford Fusion — Throttle/Pedal Position Sensor 'A' Circuit High
P0123 2008 Ford Fusion — Throttle/Pedal Position Sensor 'A' Circuit High
P0123 2009 Ford Fusion — Throttle/Pedal Position Sensor 'A' Circuit High
P0123 2010 Ford Fusion — Throttle/Pedal Position Sensor 'A' Circuit High
P0123 2011 Ford Fusion — Throttle/Pedal Position Sensor 'A' Circuit High
P0123 2012 Ford Fusion — Throttle/Pedal Position Sensor 'A' Circuit High

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.