P0123 1998 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 1998 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 1998 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 1998 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 1998 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 1998 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 1998 Ford F150 Code
1. What are the common symptoms of OBDII code P0123 in a 1998 Ford F150?
- Common symptoms include poor acceleration, rough idling, stalling, and possibly an illuminated check engine light.
2. What does the OBDII code P0123 "Throttle Position Circuit High Input" indicate for a 1998 Ford F150?
- This code indicates that the voltage signal from the throttle position sensor is higher than the expected range.
3. What are the possible causes of OBDII code P0123 in a 1998 Ford F150?
- Possible causes include a faulty throttle position sensor, damaged wiring or connectors in the TPS circuit, or a problem with the engine control module.
4. How can I diagnose the OBDII code P0123 in my 1998 Ford F150?
- Diagnosis involves checking the throttle position sensor's voltage output, inspecting the wiring and connectors for damage, and using a scan tool to monitor TPS data.
5. Can I continue driving my 1998 Ford F150 with OBDII code P0123 present?
- It is not recommended to drive with this code active, as it can lead to poor engine performance and potential safety hazards.
6. How can I repair OBDII code P0123 in my 1998 Ford F150?
- Repair typically involves replacing the throttle position sensor, repairing any damaged wiring or connectors, and clearing the fault code with a scan tool.
7. Is it possible to reset the OBDII code P0123 in a 1998 Ford F150 without fixing the underlying issue?
- While you can clear the fault code temporarily, it is essential to address the root cause to prevent the code from reoccurring.
8. Can extreme weather conditions trigger OBDII code P0123 in a 1998 Ford F150?
- Extreme temperature changes or moisture can sometimes affect the throttle position sensor and lead to a high input signal triggering the code.
9. How much does it typically cost to repair OBDII code P0123 in a 1998 Ford F150?
- The cost of repair can vary depending on the specific issue, but replacing a throttle position sensor can range from $50 to $200, not including labor.
10. Are there any preventive maintenance tips to avoid OBDII code P0123 in a 1998 Ford F150?
- Regularly inspecting and cleaning the throttle position sensor, ensuring proper wiring connections, and using quality fuel can help prevent issues leading to this code.
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