AutoCodes – Honda – P1684 2010 Honda Accord

P1684 2010 Honda Accord Code - Throttle Valve Return Spring Performance Problem

Quick Answer

The electronic throttle control system controls the throttle valve opening. Common causes include Dirty throttle body, Throttle body harness is open or shorted, Throttle body 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: P1684 2010 Honda Accord indicates Throttle Valve Return Spring Performance Problem.
Common causes: Common causes include Dirty throttle body, Throttle body harness is open or shorted, Throttle body 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 2,949

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 Sep 09, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1684 2010 Honda Accord Description

The electronic throttle control system 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 Engine Control Module (ECM).
The 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 ECM 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 ECM. When the ECM receives the malfunction data from the throttle actuator control module,the ECM detects the malfunction of the throttle actuator system and a DTC is stored.

OBDII Code P1684 2010 Honda Accord - Throttle Valve Return Spring Performance Problem - AutoCodes.com — P1684 2010 Honda Accord Code - Throttle Valve Return Spring Performance Problem

What does this mean?

What are the Possible Causes of the DTC P1684 2010 Honda Accord?

Dirty throttle body
Throttle body harness is open or shorted
Throttle body circuit poor electrical connection
Faulty throttle body

How to Fix the DTC P1684 2010 Honda Accord?

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 P1684 2010 Honda Accord 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 P1684 2010 Honda Accord code?

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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 P1684 2010 Honda Accord Code

1. What are the common symptoms of OBDII code P1684 in a 2010 Honda Accord related to Throttle Valve Return Spring Performance Problem?

The common symptoms include rough idle, decreased engine performance, and potential stalling of the vehicle.

2. What are the possible causes of OBDII code P1684 in a 2010 Honda Accord related to Throttle Valve Return Spring Performance Problem?

The code can be triggered by a faulty throttle valve return spring, a damaged throttle body, or issues with the throttle position sensor.

3. How can I diagnose the Throttle Valve Return Spring Performance Problem causing OBDII code P1684 in my 2010 Honda Accord?

You can start by visually inspecting the throttle body and its components, checking for any signs of wear or damage. Additionally, using a diagnostic scanner to monitor the throttle position sensor readings can help pinpoint the issue.

4. Is it safe to continue driving my 2010 Honda Accord with OBDII code P1684 related to Throttle Valve Return Spring Performance Problem?

It is not recommended to drive the vehicle with this issue as it can lead to further damage and potential safety hazards. It's best to address the problem promptly.

5. How can I repair the Throttle Valve Return Spring Performance Problem causing OBDII code P1684 in my 2010 Honda Accord?

Repairing the issue may involve replacing the throttle valve return spring, cleaning or replacing the throttle body, or recalibrating the throttle position sensor. It's advisable to consult a professional mechanic for an accurate diagnosis and repair.

6. Can a DIY enthusiast fix OBDII code P1684 related to Throttle Valve Return Spring Performance Problem in a 2010 Honda Accord?

While some basic troubleshooting steps can be done by a DIY enthusiast, diagnosing and repairing the throttle valve return spring problem may require specialized tools and expertise. It's recommended to seek professional help for proper resolution.

7. How much does it typically cost to repair OBDII code P1684 in a 2010 Honda Accord related to Throttle Valve Return Spring Performance Problem?

The repair cost can vary depending on the extent of the issue and the specific components that need to be replaced. It's advisable to get a few quotes from different mechanics to compare prices.

8. Are there any preventive maintenance tips to avoid OBDII code P1684 related to Throttle Valve Return Spring Performance Problem in a 2010 Honda Accord?

Regularly inspecting and cleaning the throttle body, replacing air filters as recommended, and addressing any engine performance issues promptly can help prevent the recurrence of this problem.

9. Will resetting the OBDII code P1684 related to Throttle Valve Return Spring Performance Problem in a 2010 Honda Accord make the issue go away?

Resetting the code may temporarily clear the warning light, but it will not fix the underlying problem causing the Throttle Valve Return Spring Performance issue. It's important to address the root cause to prevent further issues.

10. How long does it typically take to repair OBDII code P1684 in a 2010 Honda Accord related to Throttle Valve Return Spring Performance Problem?

The repair time can vary depending on the exact cause of the issue and the complexity of the repair needed. It's best to consult with a mechanic to get an estimate of the repair duration.