[SOLVED] P1251 Code: Throttle Motor Circuit – Diagnosis And Fix Guide

The automobile fault code P1251 indicates an issue with the idling speed of the engine, resulting in the Engine Light or Service Engine Soon Warning Light turning on. The cause of this fault code can be attributed to various factors, such as incorrect idling speed, a mechanical fault preventing the throttle from closing, a faulty throttle motor, an open or shorted throttle motor harness, or a poor electrical connection in the throttle motor circuit. To fix this issue, it is recommended to visually inspect the wiring harness and connectors, checking for any damage or corrosion.

Additionally, look for any broken, bent, pushed out, or corroded pins in the connectors. The repair time for this issue is estimated to be around 1.0.

To interpret the fault code, refer to the “Possible Causes” listed above.

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

When the engine light is on or the service engine soon warning light is illuminated, it could be a sign of the p1251 fault code.

  • The symptoms of the automobile fault code P1251 include the Engine Light being ON or the Service Engine Soon Warning Light being illuminated.

The automobile fault code p1251 can be caused by various factors, including incorrect idling speed, mechanical faults in the throttle, faulty throttle motor, open or shorted throttle motor harness, and poor electrical connections in the throttle motor circuit.

  • The fault code P1251 can be caused by: incorrect idling speed, a mechanical fault preventing the throttle from closing, a faulty throttle motor, an open or shorted throttle motor harness, and poor electrical connection in the throttle motor circuit.

To fix the p1251 fault code, start by visually inspecting the wiring harness, connectors, and components for any damage or corrosion.

  • To fix the automobile fault code P1251, follow these steps: 1.
  • Check the possible causes mentioned above.
  • 2.
  • Visually inspect the wiring harness and connectors related to the fault code.
  • 3.
  • Look for any damaged components.
  • 4.
  • Check for broken, bent, pushed out, or corroded pins in the connectors.
  • The estimated repair time for this fix is 1.0 hour.

The factors influencing the diagnosis and fixing cost of the automobile fault code p1251 are the estimated repair time of 1.0 hour and the average hourly rate charged by auto repair shops, which ranges between $75 and $150.

The P1251 fault code refers to the Throttle Motor Circuit in your vehicle. However, the specific description for this code may vary depending on the make and model of your car. Unfortunately, we do not have any additional information about the P1251 OBDII code at this time.

If you have any questions or need further clarification, please feel free to post your query in the Comments Section below. Our team will be happy to assist you with more information.

What are the possible causes of the automobile fault code P1251?

If you’re seeing the P1251 fault code on your car’s engine light, it could be due to a few possible causes. One reason could be an incorrect idling speed, which can disrupt the throttle from closing properly. Another cause could be a mechanical fault that’s preventing the throttle from functioning correctly. It’s also possible that the throttle motor itself is faulty or that there’s an issue with the throttle motor harness, such as it being open or shorted. To fix this issue, you’ll want to visually inspect the wiring harness and connectors, checking for any damage or corrosion. Additionally, look out for any broken, bent, pushed out, or corroded pins on the connectors.

How can I visually inspect the wiring harness and connectors to fix the P1251 fault code?

If you’re dealing with the P1251 fault code and your engine light is on, it’s time to visually inspect the wiring harness and connectors. This code can be caused by incorrect idling speed, a mechanical issue with the throttle, a faulty throttle motor, or poor electrical connections in the throttle motor circuit. To fix it, check the possible causes mentioned earlier and carefully examine the wiring harness and connectors. Look for any signs of damage, such as broken or bent pins, corrosion, or components that are out of place.

What should I look for when checking for damaged components or corroded connector pins to resolve the P1251 fault code?

When resolving the P1251 fault code, start by checking for damaged components or corroded connector pins. This can be done by visually inspecting the related wiring harness and connectors. Look for any broken, bent, pushed out, or corroded pins. By addressing these issues, you can effectively fix the problem and prevent further complications.

p1251 error fault code explained

If you’re seeing the Engine Light ON or the Service Engine Soon Warning Light, the p1251 fault code might be the culprit. This code is usually caused by an incorrect idling speed or a mechanical issue that prevents the throttle from closing properly.

It could also be due to a faulty throttle motor or problems with the throttle motor harness.

To fix this, visually inspect the wiring harness and connectors, checking for any damage or corrosion.

Look out for broken, bent, pushed out, or corroded connector pins as well.

Scroll to Top