AutoCodes – RAM – B2339 RAM

B2339 RAM Code - Horn Switch Stuck

Quick Answer

The Horn Switch is connected to the Right Steering Switch. Common causes include Faulty Horn Switch, Horn Switch harness is open or shorted, Horn Switch 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: B2339 RAM indicates Horn Switch Stuck.
Common causes: Common causes include Faulty Horn Switch, Horn Switch harness is open or shorted, Horn Switch 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 796

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Nov 12, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code B2339 RAM Description

The Horn Switch is connected to the Right Steering Switch. The switching status is transferred to the Cluster by way of the LIN bus, a serial sub-bus. The Cluster converts the data to a CAN Bus signal and sends the message to the corresponding module on the bus. The Diagnostic Trouble Code (DTC) sets when the Cluster senses that the Horn Switch is pressed for greater than 45 seconds.

OBDII Code B2339 RAM - Horn Switch Stuck - AutoCodes.com — B2339 RAM Code - Horn Switch Stuck

What does this mean?

What are the Possible Causes of the DTC B2339 RAM?

Faulty Horn Switch
Horn Switch harness is open or shorted
Horn Switch circuit poor electrical connection
Faulty Right Steering Switch

How to Fix the DTC B2339 RAM?

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 B2339 RAM 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 B2339 RAM code?

Need more information on how to fix the B2339 RAM code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2339 RAM code diagnosed by a professional: Find a repair shop in your area

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 B2339 RAM Code

1. What are the common symptoms of OBDII code B2339 (RAM) titled Horn Switch Stuck?

- The most common symptoms include the horn being stuck in the on position or not functioning at all, along with the possibility of the airbag warning light being illuminated on the dashboard.

2. What are the potential causes of OBDII code B2339 (RAM) indicating a Horn Switch Stuck?

- The code can be triggered by a faulty horn switch, a short circuit in the horn circuit, a malfunctioning clock spring, or issues with the wiring harness related to the horn system.

3. How can I diagnose the issue related to OBDII code B2339 (RAM) for a Horn Switch Stuck?

- Diagnosis usually involves checking the horn switch for proper operation, inspecting the wiring for any damage or short circuits, and testing the clock spring for continuity and functionality.

4. What are the recommended repair tips for resolving OBDII code B2339 (RAM) for a Horn Switch Stuck?

- Repair typically involves replacing the faulty horn switch, repairing any damaged wiring, replacing the clock spring if necessary, and clearing the error code with an OBDII scanner.

5. Can I fix the Horn Switch Stuck issue related to OBDII code B2339 (RAM) on my own?

- While some DIY enthusiasts may be able to address the issue themselves, it is recommended to have a professional mechanic diagnose and repair the problem to ensure proper and safe functionality of the horn system.

6. Is it safe to continue driving with the Horn Switch Stuck issue indicated by OBDII code B2339 (RAM)?

- Driving with a malfunctioning horn can compromise safety on the road, especially in emergency situations. It is advisable to address the issue promptly to ensure the horn functions correctly when needed.

7. Will resetting the OBDII code B2339 (RAM) for Horn Switch Stuck resolve the issue temporarily?

- Simply resetting the error code may temporarily turn off the warning light, but it will not fix the underlying problem causing the Horn Switch Stuck issue. Proper diagnosis and repair are necessary.

8. How much does it typically cost to repair OBDII code B2339 (RAM) for a Horn Switch Stuck?

- The cost of repair can vary depending on the specific cause of the issue, parts needed for replacement, and labor rates. It is recommended to consult with a mechanic for an accurate estimate.

9. Are there any preventive measures to avoid encountering OBDII code B2339 (RAM) indicating Horn Switch Stuck in the future?

- Regularly checking the horn system for proper operation, addressing any issues promptly, and ensuring the wiring and components are in good condition can help prevent the recurrence of the problem.

10. Can OBDII code B2339 (RAM) for Horn Switch Stuck affect other vehicle systems or components?

- While the code specifically relates to the horn switch issue, electrical problems in the horn circuit can potentially impact other systems, such as the airbag system or steering wheel controls. Prompt repair is essential.