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P2118 Honda Code - Throttle Actuator Current Range/Performance Problem

Quick Answer

The P2118 diagnostic trouble code for Honda vehicles indicates a Throttle Actuator Current Range/Performance Problem. Common causes include Faulty throttle actuator motor, Wiring issues or poor electrical connections, Failed Engine Control Module (ECM). 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 Honda indicates Throttle Actuator Current Range/Performance Problem.
Common causes
Common causes include Faulty throttle actuator motor, Wiring issues or poor electrical connections, Failed Engine Control Module (ECM).
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 08, 2024
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Code P2118 Honda Description

The P2118 diagnostic trouble code for Honda vehicles indicates a Throttle Actuator Current Range/Performance Problem. This code is typically associated with an issue in the throttle actuator control system, which is responsible for controlling the throttle body's opening and closing to regulate the engine's air intake. The throttle actuator is an essential component in the engine management system, as it directly affects the engine's performance and efficiency.

OBDII Code P2118 Honda - Throttle Actuator Current Range/Performance Problem
P2118 Honda Code - Throttle Actuator Current Range/Performance Problem

Common Causes of P2118 Honda

  1. Faulty throttle actuator motor
  2. Wiring issues or poor electrical connections
  3. Failed Engine Control Module (ECM)
  4. Throttle body sticking or binding
  5. Dirty or clogged throttle body

Symptoms of P2118 Honda

  1. Erratic idling or surging
  2. Poor acceleration or lack of power
  3. Stalling or difficulty starting the engine
  4. Reduced fuel efficiency
  5. Check Engine Light illuminated on the dashboard

How to Fix P2118 Honda

  1. Diagnose the issue using a diagnostic scanner to read the trouble codes and perform a thorough inspection of the throttle actuator system.
  2. Check and repair any damaged wiring or electrical connections related to the throttle actuator.
  3. Test the throttle actuator motor's functionality and replace it if necessary.
  4. Clean the throttle body to ensure proper operation and eliminate any potential blockages.
  5. Reset the ECM and perform a throttle body relearn procedure to calibrate the system.

Cost to Fix P2118 Honda

The typical repair costs for addressing a P2118 Throttle Actuator Current Range/Performance Problem can range from $200 to $600, depending on the specific cause of the issue and the parts needed for replacement. This estimate includes both parts and labor. However, it is important to note that actual repair costs can vary significantly based on factors such as the vehicle's make and model, the location of the repair shop, and the technician's labor rates. It is recommended to obtain a detailed quote from a trusted auto repair professional before proceeding with 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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Information for Specific Honda Models

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 Honda Code

1. What are the common symptoms of OBDII code P2118 in a Honda?

Symptoms may include reduced engine power, hesitation or stalling while driving, illuminated Check Engine Light, and difficulty accelerating.

2. What can cause the Throttle Actuator Current Range/Performance Problem in a Honda?

Potential causes of code P2118 include a faulty throttle body actuator, a damaged throttle position sensor, wiring issues, or a problem with the engine control module.

3. How can I diagnose the Throttle Actuator Current Range/Performance Problem in my Honda?

Diagnosis typically involves using a diagnostic scanner to retrieve the trouble codes, performing a visual inspection of the throttle body and related components, and conducting thorough testing of the throttle actuator and sensor.

4. Can I drive my Honda with OBDII code P2118?

It is not recommended to drive your vehicle with code P2118 as it can lead to unsafe driving conditions and potential damage to the engine. It's best to address the issue promptly.

5. Are there any DIY repair tips for fixing OBDII code P2118 in a Honda?

DIY repair tips may include cleaning the throttle body, checking and tightening electrical connections, and inspecting for any visible damage or wear on the throttle actuator components.

6. How much does it cost to repair the Throttle Actuator Current Range/Performance Problem in a Honda?

The cost of repair can vary depending on the root cause of the issue, the extent of the damage, and whether you choose to fix it yourself or take it to a professional mechanic. It is recommended to get estimates from different service providers.

7. Can a faulty throttle actuator impact fuel efficiency in a Honda?

Yes, a malfunctioning throttle actuator can affect the air-fuel mixture and engine performance, potentially leading to decreased fuel efficiency in your Honda.

8. Will resetting the Check Engine Light resolve OBDII code P2118 in a Honda?

Resetting the Check Engine Light may temporarily turn it off, but it will not fix the underlying issue causing code P2118. It's important to diagnose and address the problem to prevent it from recurring.

9. How often should I check the throttle system in my Honda to prevent code P2118?

Regular maintenance checks, including inspecting the throttle body, cleaning the components, and ensuring proper electrical connections, can help prevent issues like code P2118 from occurring. Consider checking the throttle system during routine maintenance intervals.

10. Is it safe to continue driving if the Check Engine Light is flashing due to code P2118 in a Honda?

A flashing Check Engine Light indicates a severe issue that may cause damage to the catalytic converter. It is not safe to drive your Honda with a flashing Check Engine Light. Pull over safely, turn off the engine, and have the vehicle towed to a mechanic for diagnosis and repair.

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