AutoCodes – Honda – P2118 Honda

P2118 Honda Code - Throttle Actuator Current Range/Performance Problem

Quick Answer

The Electronic Throttle Control System (ETCS) controls the throttle valve opening. Common causes include Faulty Throttle Actuator Control Actuator, Throttle Actuator Control Actuator harness is open or shorted, Throttle Actuator Control Actuator circuit poor electrical connection. 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 Control Actuator, Throttle Actuator Control Actuator harness is open or shorted, Throttle Actuator Control Actuator circuit poor electrical connection.
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.

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Code Popularity 17,440

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2118 Honda Description

The Electronic Throttle Control System (ETCS) controls the throttle valve opening. The system is composed of the throttle actuator, the throttle valve, Throttle Position (TP) sensors A and B, the throttle actuator control module, the throttle actuator control module relay, the Accelerator Pedal Position (APP) sensor, and the Powertrain Control Module (PCM). The Accelerator Pedal Position (APP) sensor is operated via the throttle cable to determine the accelerator opening value when the driver presses the accelerator pedal. The accelerator pedal opening value is converted to a signal in the APP sensor and transmitted to the PCM to compute the target position. The target position signal is then transmitted to the throttle actuator control module. The throttle actuator control module determines the throttle valve target position according to the signal received and operates the throttle actuator to move the throttle valve to the target position. The actual throttle valve position is determined by TP sensor A installed in the throttle body. The throttle actuator control module compares the throttle valve target opening angle and the actual throttle valve opening angle from TP sensor A, and when the difference exceeds the specification, the throttle actuator control module transmits the malfunction data to the PCM. When the PCM receives the malfunction data from the throttle actuator control module, the PCM detects the malfunction of the throttle actuator system and a DTC is stored.

OBDII Code P2118 Honda - Throttle Actuator Current Range/Performance Problem - AutoCodes.com — P2118 Honda Code - Throttle Actuator Current Range/Performance Problem

What does this mean?

What are the Possible Causes of the DTC P2118 Honda?

Faulty Throttle Actuator Control Actuator
Throttle Actuator Control Actuator harness is open or shorted
Throttle Actuator Control Actuator circuit poor electrical connection

How to Fix the DTC P2118 Honda?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2118 Honda code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P2118 Honda code?

Need more information on how to fix the P2118 Honda code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2118 Honda code diagnosed by a professional: Find a repair shop in your area

Information for Specific Honda Models

P2118 2008 Honda Accord — Throttle Actuator Control Motor Current Range/Performance
P2118 2009 Honda Accord — Throttle Actuator Control Motor Current Range/Performance
P2118 2010 Honda Accord — Throttle Actuator Control Motor Current Range/Performance

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.