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P2118 2007 Nissan Sentra Code - Throttle Control Motor Circuit Short

Quick Answer

The P2118 code in a 2007 Nissan Sentra indicates a problem with the throttle control motor circuit short. Common causes include Wiring issues or loose connections within the throttle control motor circuit, Faulty throttle control motor, Corrosion or damage to the throttle control motor circuit components. 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
P2118 2007 Nissan Sentra indicates Throttle Control Motor Circuit Short.
Common causes
Common causes include Wiring issues or loose connections within the throttle control motor circuit, Faulty throttle control motor, Corrosion or damage to the throttle control motor circuit components.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P2118 2007 Nissan Sentra Description

The P2118 code in a 2007 Nissan Sentra indicates a problem with the throttle control motor circuit short. This code specifically points to a malfunction in the electronic throttle control system, which is responsible for regulating the amount of air entering the engine. The throttle control motor is an essential component that adjusts the throttle valve's position based on input from the accelerator pedal.

OBDII Code P2118 2007 Nissan Sentra - Throttle Control Motor Circuit Short
P2118 2007 Nissan Sentra Code - Throttle Control Motor Circuit Short

Common Causes of P2118 2007 Nissan Sentra

  1. Wiring issues or loose connections within the throttle control motor circuit
  2. Faulty throttle control motor
  3. Corrosion or damage to the throttle control motor circuit components
  4. Electronic control module (ECM) malfunction
  5. Water or debris intrusion in the throttle control motor circuit

Symptoms of P2118 2007 Nissan Sentra

  1. Engine stalling or hesitation during acceleration
  2. Reduced throttle response or lack of acceleration
  3. Illuminated Check Engine Light
  4. Rough idling or uneven engine performance

How to Fix P2118 2007 Nissan Sentra

  1. Begin by conducting a thorough inspection of the throttle control motor circuit, including wiring and connections, to identify any visible damage or loose connections.
  2. Test the throttle control motor using a multimeter to determine if it is functioning properly. Replace the throttle control motor if necessary.
  3. Check for any corrosion or damage to the throttle control motor circuit components and repair or replace them as needed.
  4. Clear the diagnostic trouble codes from the engine control module using an OBD-II scanner and perform a test drive to verify that the issue has been resolved.
  5. If the problem persists, consult a professional technician for further diagnosis and potential ECM replacement.

Cost to Fix P2118 2007 Nissan Sentra

The cost of repairing a P2118 code on a 2007 Nissan Sentra can vary depending on the extent of the damage and the specific components that need to be replaced. Typically, the cost of parts for this repair can range from $100 to $300, with labor costs adding an additional $100 to $200. Overall, the total repair cost can fall within the range of $200 to $500. However, it is essential to note that these are rough estimates, and actual repair costs may differ based on location, labor rates, and the specific diagnosis required for your vehicle. It is advisable to consult with a trusted auto repair shop to obtain a more accurate cost estimate for this repair.

When is the Code Detected?

Engine Control Module (ECM) detects short in both circuits between ECM and throttle control motor.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P2118 2007 Nissan Sentra Code

1. What does the OBDII code P2118 mean on a 2007 Nissan Sentra?

P2118 indicates an issue with the throttle control motor circuit, often caused by a short or malfunction in the electronic throttle control system.

2. What are the symptoms of code P2118 in a 2007 Nissan Sentra?

Common symptoms include poor acceleration, the throttle not responding properly, the engine going into limp mode, and the illumination of the check engine light.

3. What causes the P2118 code to appear on a 2007 Nissan Sentra?

This code can be caused by a short in the throttle control motor circuit, a faulty throttle body, damaged wiring, a failing electronic control module (ECM), or a weak battery.

4. Can I drive my 2007 Nissan Sentra with the P2118 code?

It is not recommended to drive the vehicle with this code active, as the limp mode and throttle issues can lead to unsafe driving conditions.

5. How do I diagnose the P2118 code on a 2007 Nissan Sentra?

Begin by checking the throttle body for physical damage or debris, inspecting the wiring and connectors for shorts or corrosion, and testing the throttle control motor and ECM for proper operation.

6. How can I fix the P2118 code on my 2007 Nissan Sentra?

Repairs may include cleaning or replacing the throttle body, repairing damaged wiring or connectors, replacing the throttle control motor, or reprogramming or replacing the ECM.

7. Does a weak battery cause the P2118 code on a 2007 Nissan Sentra?

Yes, a weak or failing battery can cause insufficient power to the throttle control motor, leading to the P2118 code.

8. How much does it cost to repair the P2118 code on a 2007 Nissan Sentra?

Repair costs vary, but cleaning the throttle body may cost around $100-$150, while replacing the throttle body or ECM could range from $500 to $1,500, depending on parts and labor.

9. Will clearing the P2118 code fix the problem in a 2007 Nissan Sentra?

Clearing the code may temporarily turn off the check engine light, but the underlying issue must be diagnosed and repaired to prevent the code from returning.

10. Can a dirty throttle body trigger the P2118 code in a 2007 Nissan Sentra?

Yes, a dirty or clogged throttle body can impede the throttle control motor’s function and trigger this code. Cleaning the throttle body may help resolve the issue.

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