If you’re experiencing a lack of response from your throttle pedal and your engine light is on, it could be due to the P2121 fault code. This code indicates a problem with the Accelerator Pedal Position (APP) Sensor or its circuitry. The cause could be a faulty sensor, an open or shorted harness, or a poor electrical connection.

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 harness and connectors for any damage or corrosion.

To interpret the fault code, you can use an OBD-II scanner or take your vehicle to a mechanic.

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 p2121 automobile fault code.

  • The P2121 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 symptoms can indicate a problem with the throttle or accelerator pedal position sensor.
  • It is important to address this issue promptly to avoid further damage to the vehicle.

The automobile fault code P2121 can be caused by a faulty APP sensor, open or shorted APP sensor harness, poor electrical connection, or a faulty PCM.

  • The automobile fault code P2121 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 P2121 fault code.

To fix the p2121 fault code, check the possible causes and inspect the wiring harness and connectors for any damage or corrosion.

  • To fix the automobile fault code p2121, first, check the possible causes listed above.
  • Then, visually inspect the related wiring harness and connectors.
  • Look for damaged components and check for broken, bent, pushed out, or corroded connector’s pins.
  • This fix will take an estimated repair time of 1.0 hour.

The automobile fault code P2121 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 P2121 code refers to a problem with the ThrottlePedal Position SensorSwitch ‘D’ Circuit RangePerformance. 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 pedal position signal is converted to pedal travel degrees by the PCM, which is the input to the torque based strategy.

What are the possible causes of the P2121 automobile fault code?

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 issue, 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.

How can I visually inspect the wiring harness and connectors related to the P2121 fault code?

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 or a poor electrical connection. To fix this, check the possible causes listed above and visually inspect the related wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector’s pins.

What are the symptoms of the P2121 automobile fault code and how can I fix it?

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 the P2121 automobile fault code. This is 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 this issue, check the possible causes listed above, visually inspect the related wiring harness and connectors, and look for damaged components or corroded connector pins.

p2121 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 or corrosion.

Also, inspect the PCM for faults.

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