P2122 Hyundai Code - Accelerator Position Circuit - Low Input
Quick Answer
The P2122 code for Hyundai vehicles indicates a low input signal from the accelerator position circuit. Common causes include Faulty accelerator pedal position sensor, Wiring or connector issues in the accelerator position circuit, ECM malfunction. 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
- P2122 Hyundai indicates Accelerator Position Circuit - Low Input.
- Common causes
- Common causes include Faulty accelerator pedal position sensor, Wiring or connector issues in the accelerator position circuit, ECM malfunction.
- 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 P2122 Hyundai Description
The P2122 code for Hyundai vehicles indicates a low input signal from the accelerator position circuit. This means that the Engine Control Module (ECM) has detected a voltage signal lower than the specified range for the accelerator pedal position sensor. The accelerator pedal position sensor is crucial for the ECM to determine the driver's desired throttle input, which in turn affects the fuel delivery and ignition timing. A low input signal can lead to issues with acceleration, fuel efficiency, and overall engine performance. If left unresolved, this issue can potentially cause further damage to other components in the vehicle.
Common Causes of P2122 Hyundai
- Faulty accelerator pedal position sensor
- Wiring or connector issues in the accelerator position circuit
- ECM malfunction
- Throttle body issues
- Accelerator pedal assembly problems
Symptoms of P2122 Hyundai
- Reduced engine power
- Poor acceleration response
- Engine stalling or hesitation
- Check Engine Light illuminated
- Limited top speed
How to Fix P2122 Hyundai
- Conduct a thorough inspection of the accelerator pedal position sensor and its wiring for any signs of damage or corrosion.
- Test the sensor's voltage output using a multimeter to determine if it falls within the specified range.
- Replace the accelerator pedal position sensor if it is found to be faulty.
- Check and repair any damaged wiring or connectors in the circuit.
- Clear the trouble codes from the ECM and perform a test drive to ensure the issue has been resolved.
Cost to Fix P2122 Hyundai
The cost of repairing a P2122 code on a Hyundai vehicle can vary depending on the specific model and the extent of the issue. In general, parts for this repair may range from $50 to $200, while labor costs could be between $100 and $300. Additional diagnostic fees may apply, so it's recommended to consult with a trusted auto repair shop for a more accurate estimate. Factors such as location, dealership rates, and the complexity of the repair can also influence the final cost.
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Frequently Asked Questions about P2122 Hyundai Code
1. What are the common symptoms of OBDII code P2122 in a Hyundai related to the Accelerator Position Circuit - Low Input?
- Common symptoms include a decrease in engine power, hesitation or stalling when accelerating, and the vehicle going into limp mode.
2. What are the possible causes of the OBDII code P2122 in a Hyundai?
- Possible causes include a faulty accelerator pedal position sensor, issues with the wiring or connectors in the accelerator pedal circuit, or a problem with the engine control module (ECM).
3. How can I diagnose the OBDII code P2122 in my Hyundai?
- Diagnosis typically involves using a scan tool to retrieve the code, checking the wiring and connectors for any damage or corrosion, and testing the accelerator pedal position sensor for proper operation.
4. Can I still drive my Hyundai with the OBDII code P2122 present?
- While it is possible to drive the vehicle with this code, it is recommended to address the issue promptly to prevent further damage and ensure safe operation.
5. How can I repair the OBDII code P2122 in my Hyundai?
- Repair may involve replacing the accelerator pedal position sensor, repairing or replacing damaged wiring or connectors, or reprogramming the ECM if necessary.
6. Is it safe to reset the OBDII code P2122 in my Hyundai without addressing the underlying issue?
- While clearing the code may temporarily turn off the check engine light, the underlying problem will persist and could lead to further issues if left unresolved.
7. Can a DIY enthusiast fix the OBDII code P2122 in a Hyundai?
- Depending on the root cause, DIY enthusiasts with automotive repair experience may be able to address the issue. However, some repairs may require professional diagnosis and expertise.
8. How much does it typically cost to repair the OBDII code P2122 in a Hyundai?
- The cost of repair can vary depending on the specific issue causing the code. It is recommended to obtain quotes from reputable mechanics or dealerships for an accurate estimate.
9. Will the OBDII code P2122 in my Hyundai cause permanent damage if left unrepaired?
- Ignoring the code for an extended period may lead to decreased performance, reduced fuel efficiency, or potential damage to other engine components. It is best to address the issue promptly.
10. Can extreme weather conditions impact the occurrence of the OBDII code P2122 in a Hyundai?
- Extreme temperatures or moisture can sometimes affect the performance of sensors and electrical components, potentially leading to the triggering of OBDII code P2122 in a Hyundai.
Discuss the causes and fixes for P2122 Hyundai OBDII Code
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Which engine part does this apply to? Or could it be a series of components? I replaced the TSP. Seemed to have helped. But occasionally, the code pops up. Or comes on. I'll erase it and will not have issues. Then, again it shows up.
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2016 Hyundai sonata SE:
I replaced the entire pedal assembly which includes the sensor and erase the codes. The light came on and the hesitant acceleration happened again. The RPMs will not go over 2000 and it sputters. P 2122 Came back! The throttle body position sensor says it’s unserviceable and you have to replace the entire throttlebody that includes the sensor. Would this be my next move? -
I have a hyundai santa fe 2003 the code is P2122..not sure whether I need the senor or the pedal. My car goes but has hesitation..when you stop at a light takes a bit to get it going
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According to a National Database of repairs for your model and year, the most likely cause of the problem for the P2122 code is the Accelerator Pedal Position Sensor
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2015 Hyundai Sonata 2.4L----Car stopped in the middle of driving, wouldn't restart, even with getting a jump. Got code p2122, not sure whether to purchase the TPS or Accelerator Pedal Position Sensor.....The battery died like a week ago, but that could be coincidence? Wiring harness looked fine.
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Unfortunately, I haven't had that problem before at my shop, but according to the factory service manual and a national database of repairs on the 2015 Hyundai Sonata, the most probable cause of the problem is the Accelerator Pedal Position Sensor. I hope that helps.
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Yep, tried it to no avail. I really hoped that was the issue. Changed all spark plugs just in case. (I'm just thinking of everything I know as a girl, lol)
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