P0123 1999 Ford F150 Code - Throttle Position Circuit High Input
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 1999 Ford F150 indicates Throttle Position Circuit High Input .
- 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.
Code P0123 1999 Ford F150 Description
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.
What are the Possible Causes of the DTC P0123 1999 Ford F150?
- 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 1999 Ford F150?
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.
Code Tech Notes
A TP PID (TP V PID) reading greater than 93% (4.65 volts) in key ON engine OFF, continuous memory or key ON engine running indicates a hard fault.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0123 1999 Ford F150 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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Frequently Asked Questions about P0123 1999 Ford F150 Code
1. What are the common symptoms of OBDII code P0123 on a 1999 Ford F150?
The common symptoms of code P0123 on a 1999 Ford F150 include issues with acceleration, rough idling, poor fuel economy, and potentially even stalling.
2. What does the OBDII code P0123 indicate on a 1999 Ford F150?
OBDII code P0123 on a 1999 Ford F150 indicates a Throttle Position Circuit High Input error, meaning the signal from the throttle position sensor is higher than expected by the engine control module.
3. What are the possible causes of OBDII code P0123 on a 1999 Ford F150?
Possible causes of code P0123 on a 1999 Ford F150 include a faulty throttle position sensor, damaged wiring or connectors in the throttle position circuit, or issues with the engine control module.
4. How can I diagnose the OBDII code P0123 on my 1999 Ford F150?
To diagnose code P0123 on a 1999 Ford F150, you can use an OBDII scanner to retrieve the code, visually inspect the throttle position sensor and its wiring, and perform voltage tests to check for proper signal output.
5. Can I still drive my 1999 Ford F150 with OBDII code P0123?
It is not recommended to drive your 1999 Ford F150 with OBDII code P0123, as it can lead to poor engine performance and potential safety hazards. It's best to address the issue promptly.
6. How can I repair OBDII code P0123 on a 1999 Ford F150?
To repair code P0123 on a 1999 Ford F150, you may need to replace the throttle position sensor, repair any damaged wiring or connectors, or reset the engine control module after fixing the issue.
7. Is it possible to reset OBDII code P0123 on a 1999 Ford F150 without fixing the underlying problem?
While you can clear the code using an OBDII scanner, it is not recommended to do so without addressing the root cause, as the issue may persist and lead to further problems.
8. How much does it cost to fix OBDII code P0123 on a 1999 Ford F150?
The cost of fixing code P0123 on a 1999 Ford F150 can vary depending on the specific issue, but it may involve replacing the throttle position sensor, which can cost between $50 to $200, plus labor charges.
9. Can a DIY enthusiast repair OBDII code P0123 on a 1999 Ford F150?
A DIY enthusiast with the necessary tools and knowledge of automotive repair may be able to fix code P0123 on a 1999 Ford F150 by replacing the throttle position sensor or repairing wiring issues.
10. How often does OBDII code P0123 occur in a 1999 Ford F150?
Code P0123 can occur in a 1999 Ford F150 due to various factors, but it is not considered a common issue. Proper maintenance and timely sensor replacements can help prevent this error.
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