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Engine-Codes – Nissan – P2118 2005 Nissan Pathfinder

P2118 2005 Nissan Pathfinder Code - Throttle Control Motor Circuit Short Bank 1

Quick Answer

The P2118 diagnostic trouble code (DTC) for a 2005 Nissan Pathfinder refers to a problem with the Throttle Control Motor Circuit on Bank 1. Common causes include Faulty throttle control motor, Short circuit in the throttle control motor circuit, Wiring issues or damaged connectors. 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 2005 Nissan Pathfinder indicates Throttle Control Motor Circuit Short Bank 1.
Common causes
Common causes include Faulty throttle control motor, Short circuit in the throttle control motor circuit, Wiring issues or damaged connectors.
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 29, 2024
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Code P2118 2005 Nissan Pathfinder Description

The P2118 diagnostic trouble code (DTC) for a 2005 Nissan Pathfinder refers to a problem with the Throttle Control Motor Circuit on Bank 1. This code indicates that there is a short circuit in the circuit that controls the throttle motor on the vehicle. The throttle control motor is responsible for adjusting the throttle valve opening angle based on signals from the engine control module (ECM). When a short circuit occurs in this circuit, it can cause the throttle control motor to malfunction, leading to issues with engine performance and drivability.

OBDII Code P2118 2005 Nissan Pathfinder - Throttle Control Motor Circuit Short Bank 1
P2118 2005 Nissan Pathfinder Code - Throttle Control Motor Circuit Short Bank 1

Common Causes of P2118 2005 Nissan Pathfinder

  1. Faulty throttle control motor
  2. Short circuit in the throttle control motor circuit
  3. Wiring issues or damaged connectors
  4. ECM malfunction
  5. Poor electrical connections

Symptoms of P2118 2005 Nissan Pathfinder

  1. Reduced engine power
  2. Poor acceleration
  3. Engine stalling
  4. Check Engine Light illuminated
  5. Limp mode activation

How to Fix P2118 2005 Nissan Pathfinder

  1. Begin by conducting a thorough inspection of the throttle control motor circuit, including the wiring and connectors, to identify any visible damage or issues.
  2. Test the throttle control motor using a multimeter to check for proper voltage and resistance. Replace the motor if it fails the test.
  3. Inspect the wiring harness for any signs of damage or corrosion. Repair or replace any damaged wires.
  4. Check the connectors for proper connection and corrosion. Clean or replace connectors as needed.
  5. Clear the DTC with a scan tool and perform a test drive to ensure the issue has been resolved.

Cost to Fix P2118 2005 Nissan Pathfinder

The cost of repairing a P2118 code on a 2005 Nissan Pathfinder can vary depending on the specific cause of the issue. In general, 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 for this issue is typically between $200 and $500. However, it's important to note that labor rates and part prices can vary based on location, the auto repair shop, and the availability of parts. It's recommended to obtain quotes from multiple repair shops to ensure you get the best price for the 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 2005 Nissan Pathfinder Code

1. What are the common symptoms of OBDII code P2118 on a 2005 Nissan Pathfinder?

- Common symptoms include reduced engine power, hesitation during acceleration, and the vehicle going into limp mode.

2. What causes the OBDII code P2118 "Throttle Control Motor Circuit Short Bank 1" on a 2005 Nissan Pathfinder?

- The code is typically triggered by a short circuit in the throttle control motor circuit, a faulty throttle control motor, or a problem with the throttle position sensor.

3. How can I diagnose the OBDII code P2118 on my 2005 Nissan Pathfinder?

- Diagnosing this code usually involves checking the throttle control motor circuit for shorts, testing the throttle control motor for proper operation, and inspecting the throttle position sensor.

4. Can I still drive my 2005 Nissan Pathfinder with OBDII code P2118 active?

- It is not recommended to drive the vehicle with this code active, as it may lead to safety issues and further damage to the throttle control system.

5. How can I repair OBDII code P2118 on my 2005 Nissan Pathfinder?

- Repairing this code may involve fixing any short circuits in the throttle control motor circuit, replacing the throttle control motor if faulty, or addressing issues with the throttle position sensor.

6. Are there any DIY tips for fixing OBDII code P2118 on a 2005 Nissan Pathfinder?

- While some basic troubleshooting like checking for loose connections or damaged wiring can be done DIY, it is recommended to have a professional diagnose and repair this issue due to its complexity.

7. Will resetting the OBDII code P2118 on my 2005 Nissan Pathfinder make it go away permanently?

- Simply resetting the code will not fix the underlying issue causing P2118. It is important to diagnose and address the root cause to prevent the code from reoccurring.

8. Is OBDII code P2118 on a 2005 Nissan Pathfinder a common problem?

- While it may not be extremely common, issues with the throttle control motor circuit can occur in vehicles, including the 2005 Nissan Pathfinder, leading to the P2118 trouble code.

9. Can extreme weather conditions cause OBDII code P2118 to appear on a 2005 Nissan Pathfinder?

- Extreme weather conditions can potentially exacerbate existing issues with the throttle control system, leading to the triggering of code P2118.

10. How much does it typically cost to repair OBDII code P2118 on a 2005 Nissan Pathfinder?

- The cost of repairing P2118 can vary depending on the root cause of the issue, but it may involve parts and labor costs ranging from $200 to $600 or more at a repair shop.

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