AutoCodes – Ford – P1123 Ford

P1123 Ford Code - Throttle Position Sensor Circuit Intermittent High Voltage

Quick Answer

The Powertrain Control Module (PCM) monitors the Throttle Position Sensor. 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: P1123 Ford indicates Throttle Position Sensor Circuit Intermittent High Voltage.
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 7,485

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 Jul 07, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1123 Ford Description

The Powertrain Control Module (PCM) monitors the Throttle Position Sensor. The PCM sets the Diagnostic Trouble Code (DTC) code when it detects the Throttle Position Sensor circuit is intermittent high voltage.

OBDII Code P1123 Ford - Throttle Position Sensor Circuit Intermittent High Voltage - AutoCodes.com — P1123 Ford Code - Throttle Position Sensor Circuit Intermittent High Voltage

What does this mean?

What are the Possible Causes of the DTC P1123 Ford?

Faulty Throttle Position Sensor
Throttle Position Sensor harness is open or shorted
Throttle Position Sensor circuit poor electrical connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC P1123 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 P1123 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.

Need more information about the P1123 Ford code?

Need more information on how to fix the P1123 Ford code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1123 Ford code diagnosed by a professional: Find a repair shop in your area

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.

Frequently Asked Questions about P1123 Ford Code

1. What are the common symptoms of OBDII code P1123 in a Ford related to the throttle position sensor circuit?

- Common symptoms include rough idling, poor acceleration, stalling, and potential lack of power in the vehicle.

2. What could be causing the Throttle Position Sensor Circuit Intermittent High Voltage error code (P1123) in a Ford?

- Potential causes include a faulty throttle position sensor, damaged wiring or connectors, issues with the throttle body, or a problem with the engine control module.

3. How can I diagnose the Throttle Position Sensor Circuit Intermittent High Voltage issue in my Ford?

- You can use a multimeter to test the throttle position sensor's voltage output, inspect the wiring and connectors for any damage, and perform a thorough visual inspection of the throttle body components.

4. Can a dirty throttle body cause OBDII code P1123 in a Ford?

- Yes, a dirty or clogged throttle body can disrupt the proper functioning of the throttle position sensor and potentially trigger the P1123 error code.

5. Is it safe to drive my Ford with the P1123 error code related to the throttle position sensor circuit?

- It is not recommended to drive the vehicle with the P1123 code present, as it can lead to poor performance and potential safety hazards. It's best to address the issue promptly.

6. How can I repair the Throttle Position Sensor Circuit Intermittent High Voltage problem in my Ford?

- Repair options may include replacing the throttle position sensor, repairing or replacing damaged wiring or connectors, cleaning the throttle body, or resetting the engine control module.

7. Can resetting the Check Engine Light clear the P1123 trouble code in a Ford?

- While resetting the Check Engine Light may temporarily clear the code, it is important to diagnose and address the underlying issue causing the P1123 code to prevent it from reoccurring.

8. Will disconnecting the battery reset the throttle position sensor in a Ford with code P1123?

- Disconnecting the battery may reset the vehicle's computer system, but it will not necessarily resolve the underlying problem with the throttle position sensor circuit causing the P1123 error code.

9. How much does it typically cost to repair the Throttle Position Sensor Circuit Intermittent High Voltage issue in a Ford?

- The cost of repair can vary depending on the specific cause of the problem, but it may range from $100 to $300 for parts and labor.

10. Can a DIY enthusiast fix the P1123 error code related to the throttle position sensor circuit in a Ford?

- Depending on the individual's skills and experience, some DIY enthusiasts may be able to address the issue by following repair guides and using the necessary tools. However, it is recommended to consult a professional if unsure.