If you’re experiencing a lack of response from your throttle pedal and your engine light is on, it could be due to the P2123 fault code.

This code indicates a problem with the Accelerator Pedal Position (APP) Sensor, which could be faulty or have a poor electrical connection. It could also be caused by a damaged wiring harness or connector. It’s important to address this issue promptly, as it can affect your vehicle’s performance and fuel efficiency.

The repair time for this issue is estimated at 1.0, and it’s recommended to visually inspect the wiring and connectors for any damage or corrosion.

Repair Importance Level10.0 (Out of 10)
Estimated Repair TimeApproximately 1.0 hour
Repair Difficulty Level6.67 (Out of 10)

If you’re experiencing an illuminated engine light and unresponsive throttle pedal, read on to learn more about the symptoms of the p2123 automobile fault code.

  • The P2123 fault code in an automobile can cause the following symptoms: the engine light will turn on or the service engine soon warning light will appear.
  • Additionally, there will be no response from the throttle pedal.
  • These are the only symptoms associated with this particular fault code.

The automobile fault code P2123 can be caused by a faulty APP sensor, open or shorted harness, poor electrical connection, or a faulty PCM.

  • The automobile fault code P2123 can be caused by a faulty Accelerator Pedal Position (APP) Sensor.
  • It can also be caused by an open or shorted Accelerator Pedal Position (APP) Sensor harness.
  • Another cause can be a poor electrical connection in the Accelerator Pedal Position (APP) Sensor circuit.
  • Lastly, a faulty Powertrain Control Module (PCM) can also cause the P2123 fault code.

Below are some possible fixes for the automobile fault code p2123, including inspecting wiring harness and connectors for damage or corrosion.

  • To fix the automobile fault code p2123, you need to check the possible causes listed above.
  • Visually inspect the related wiring harness and connectors.
  • Look for damaged components and broken, bent, pushed out, or corroded connector’s pins.
  • This fix will take an estimated repair time of 1.0 hour.

The fault code P2123 indicates a problem with the throttle or pedal position sensor.

The estimated repair time for this issue is 1.0 hour. The cost of fixing this issue can vary depending on the auto repair shop, but it is common for them to charge between $75 and $150 per hour. Other factors that may influence the cost include the severity of the issue, the type of vehicle, and the location of the repair shop.

The P2123 fault code relates to the ThrottlePedal Position SensorSwitch ‘D’ Circuit High. The Accelerator Pedal Position (APP) sensor is an input to the Powertrain Control Module (PCM) and used to determine the amount of torque requested by the operator. There are 2 pedal position signals in the sensor, APP and APP2, which have a positive slope and increase at different rates.

If a concern is present with one of the circuits, the other input is used.

The P2123 code indicates that the ThrottlePedal Position SensorSwitch ‘D’ Circuit is reading a high voltage.

What are the possible causes of the automobile fault code P2123?

If you’re experiencing an illuminated engine light or service engine soon warning light, along with no throttle pedal response, the fault code P2123 may be the culprit. This code is often caused by a faulty Accelerator Pedal Position (APP) Sensor, an open or shorted APP Sensor harness, a poor electrical connection in the APP Sensor circuit, or a faulty Powertrain Control Module (PCM). To fix the issue, it’s recommended to visually inspect the related wiring harness and connectors, check for damaged components, and look for broken, bent, pushed out, or corroded connector’s pins.

How can I identify if the Accelerator Pedal Position (APP) Sensor harness is open or shorted?

If your engine light is on and there is no throttle pedal response, it could be due to a faulty Accelerator Pedal Position (APP) Sensor or a related issue. One possible cause is an open or shorted APP Sensor harness. To identify this issue, visually inspect the wiring harness and connectors for any damage or corrosion. Check for broken, bent, pushed out, or corroded connector pins. If any issues are found, they should be repaired or replaced accordingly.

What steps should I take to fix the P2123 fault code in my automobile?

If you’re experiencing an engine light on or service engine soon warning light, along with no throttle pedal response, it could be due to a faulty Accelerator Pedal Position (APP) Sensor, an open or shorted APP Sensor harness, a poor electrical connection in the APP Sensor circuit, or a faulty Powertrain Control Module (PCM). To fix this, check the possible causes listed above, visually inspect the related wiring harness and connectors, and look for damaged components or broken, bent, pushed out, or corroded connector pins.

p2123 error fault code explained

If you experience no throttle pedal response and the engine light is on, it may be due to a faulty Accelerator Pedal Position (APP) Sensor or a poor electrical connection. Check the wiring harness and connectors for damage and inspect the components for any issues. Also, check the Powertrain Control Module (PCM) for faults.

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