P0122 Ford Code - Throttle/Pedal Position Sensor 'A' Circuit Low 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
- P0122 Ford indicates Throttle/Pedal Position Sensor 'A' Circuit Low 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 P0122 Ford 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 P0122 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 P0122 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 P0122 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
- P0122 1997 Ford F150 — Throttle Position Sensor Circuit Low Input
- P0122 1998 Ford F150 — Throttle Position Sensor Circuit Low Input
- P0122 1999 Ford F150 — Throttle Position Sensor Circuit Low Input
- P0122 2000 Ford F150 — Throttle Position Sensor Circuit Low Input
- P0122 2002 Ford F150 — Throttle Position Sensor Circuit Low Input
- P0122 2003 Ford F150 — Throttle Position Sensor Circuit Low Input
- P0122 2006 Ford Fusion — Throttle/Pedal Position Sensor 'A' Circuit Low Input
- P0122 2007 Ford Fusion — Throttle/Pedal Position Sensor 'A' Circuit Low Input
- P0122 2008 Ford Fusion — Throttle/Pedal Position Sensor 'A' Circuit Low Input
- P0122 2009 Ford Fusion — Throttle/Pedal Position Sensor 'A' Circuit Low Input
- P0122 2010 Ford Fusion — Throttle/Pedal Position Sensor 'A' Circuit Low Input
- P0122 2011 Ford Fusion — Throttle/Pedal Position Sensor 'A' Circuit Low Input
- P0122 2012 Ford Fusion — Throttle/Pedal Position Sensor 'A' Circuit Low Input
Frequently Asked Questions about P0122 Ford Code
1. What are the common symptoms of OBDII code P0122 in a Ford vehicle?
- Common symptoms include poor acceleration, stalling, rough idling, reduced fuel efficiency, and the vehicle going into "limp mode."
2. What are the possible causes of the Throttle/Pedal Position Sensor 'A' Circuit Low Input code (P0122) in a Ford?
- The potential causes include a faulty throttle position sensor, damaged wiring or connectors in the sensor circuit, or issues with the vehicle's ECM (Engine Control Module).
3. How can I diagnose the cause of OBDII code P0122 in my Ford?
- You can start by checking the throttle position sensor's wiring and connectors for any visible damage. Using a multimeter, you can also test the sensor's voltage and resistance to determine if it is functioning properly.
4. Can a dirty throttle body cause OBDII code P0122 in a Ford?
- Yes, a dirty or malfunctioning throttle body can cause incorrect readings from the throttle position sensor, leading to the P0122 code. It is recommended to clean the throttle body as part of the diagnostic process.
5. What are some repair tips for resolving OBDII code P0122 in a Ford?
- Repair tips include replacing the throttle position sensor if it is faulty, repairing any damaged wiring or connectors, cleaning the throttle body, and resetting the ECM by clearing the trouble codes.
6. Is it safe to continue driving my Ford with OBDII code P0122 present?
- It is not recommended to drive the vehicle with the P0122 code, as it can lead to performance issues and potential safety hazards. It is best to address the problem promptly to avoid further damage.
7. Will resetting the trouble codes make OBDII code P0122 go away permanently?
- Resetting the trouble codes may temporarily clear the P0122 code, but if the underlying issue is not resolved, the code is likely to reappear. It is important to diagnose and fix the root cause of the problem.
8. Can I repair OBDII code P0122 in my Ford vehicle myself, or should I take it to a professional mechanic?
- Depending on your mechanical skills and access to tools, you may be able to repair the P0122 code yourself by following diagnostic procedures and replacing components as needed. However, if you are unsure or uncomfortable with the process, it is advisable to seek the help of a professional mechanic.
9. How much does it typically cost to repair OBDII code P0122 in a Ford at a repair shop?
- The cost of repairing OBDII code P0122 can vary depending on the cause of the issue, the labor rates of the repair shop, and the cost of any replacement parts. It is recommended to obtain quotes from different shops for an accurate estimate.
10. Can a temporary glitch trigger OBDII code P0122 in a Ford, or is it always indicative of a serious problem?
- While a temporary glitch or sensor error can sometimes trigger the P0122 code, it is generally an indication of a real issue with the throttle position sensor or related components. It is important to investigate the cause to prevent potential future problems.
Discuss the causes and fixes for P0122 Ford OBDII Code
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What model and year is your vehicle? You have to replace the Throttle Body.
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Is it possible for the Excelerator pedal switch to be causing that code to pop off and on and send the computer into a limp home mode
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Yes. Problems with the accelerator pedal could cause your vehicle go into a limp mode.
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The p 122 is a recurring code and it seems to only happen when I start up the engine. I had a mechanic test it at a transmission shop and they told me it was not the transmission. The sensor has already been replaced. He put a meter on it and said that the voltage was not sweeping like it was supposed to which indicated a grounding problem. We tried just straight grounding off the ground wire with a crimp and that just caused more problems. So what should we check now? Thanks for any info!
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What sensor did you replaced? Looks like for your 2004 Ford Taurus, the problem is with the Throttle Body.
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Replaced the tps...twice, thought the first one may have been bad. It is also the throttle position sensor that the guy at the shop said the voltage was not properly sweeping on and suggested that it may be a grounding problem.
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