AutoCodes – Dodge – B2549 Dodge

B2549 Dodge Code - Tonneau Retract Limit Switch Performance

Quick Answer

The Convertible Top is fairly typical of convertible tops. Common causes include Faulty Tonneau Retract Limit Switch, Tonneau Retract Limit Switch harness is open or shorted, Tonneau Retract Limit 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: B2549 Dodge indicates Tonneau Retract Limit Switch Performance.
Common causes: Common causes include Faulty Tonneau Retract Limit Switch, Tonneau Retract Limit Switch harness is open or shorted, Tonneau Retract Limit 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 656

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 Dec 25, 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 B2549 Dodge Description

The Convertible Top is fairly typical of convertible tops. There are three types of failures possible: Electrical failure (switches, wiring, motor, etc.), Hydraulic failure (fluid level low, leaks, pump internal, etc.), and Mechanical failure (binding roof, bent links, obstructions, etc.). Each type of failure mode will be rationalized by the power Top Control Module (PTCM) and labeled with a Diagnostic Trouble Code (DTC). The DTCs set by the PTCM can also be considered to have three types of failure modes:
1. Performance - These are time out DTCs, meaning the system timed out waiting for the next switch in sequence to change state. When the PTCM does not get the state change in the expected amount of time, it assumes something may be wrong and stops any further top operation in that direction. Typically the pump will run for 10 second before it times out.
2. Circuit Low - These DTCs set for a circuit that stays active at all times, meaning the signal circuit to the specified switch is continuously grounded. This could relate to a short to ground on the signal circuit, a sticking switch, or even a mechanical issue not allowing the switch to become inactive.
3. Correlation - These DTCs specifically relate two switches in a subcomponent (deck lid, tonneau drive, header latch, etc.) of the convertible top system. Both of the specified switches will be active in one position of the subcomponent (extended, retracted, open, closed, etc.). The switch that will not change state while attempting to operate the convertible top system, is the most likely area for attention.

OBDII Code B2549 Dodge - Tonneau Retract Limit Switch Performance - AutoCodes.com — B2549 Dodge Code - Tonneau Retract Limit Switch Performance

What does this mean?

What are the Possible Causes of the DTC B2549 Dodge?

Faulty Tonneau Retract Limit Switch
Tonneau Retract Limit Switch harness is open or shorted
Tonneau Retract Limit Switch circuit poor electrical connection
Faulty Power Top Control Module (PTCM)

How to Fix the DTC B2549 Dodge?

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 B2549 Dodge 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 B2549 Dodge code?

Need more information on how to fix the B2549 Dodge code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2549 Dodge 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 B2549 Dodge Code

1. What are the common symptoms of OBDII code B2549 Dodge (Tonneau Retract Limit Switch Performance)?

The common symptoms include the tonneau cover failing to retract or extend properly, and the vehicle's warning light being illuminated.

2. What causes OBDII code B2549 Dodge to trigger?

This code is usually triggered by a malfunction in the tonneau retract limit switch, which may be due to a faulty switch, wiring issues, or a misaligned switch.

3. How can I diagnose the root cause of OBDII code B2549 Dodge?

Diagnosing the issue involves checking the tonneau cover's retract limit switch for proper operation, inspecting the wiring for any damage, and ensuring the switch is properly aligned and making contact when the cover is retracting.

4. Can I still drive my vehicle with OBDII code B2549 Dodge present?

While the vehicle may still be operable with this code present, it is recommended to address the issue promptly to prevent any further damage or inconvenience in using the tonneau cover.

5. What are some repair tips for fixing OBDII code B2549 Dodge?

Repair tips include checking and adjusting the tonneau retract limit switch alignment, testing the switch for proper functionality, repairing any damaged wiring, and clearing the code to see if the issue recurs.

6. Does OBDII code B2549 Dodge affect the overall performance of the vehicle?

While this code primarily relates to the tonneau cover system, addressing it promptly can help maintain the proper functioning of the cover and prevent any potential issues with the system.

7. Can I reset OBDII code B2549 Dodge without fixing the underlying issue?

Resetting the code without addressing the root cause, such as a faulty tonneau retract limit switch, may temporarily clear the warning light but will likely result in the code retriggering if the issue persists.

8. How much does it typically cost to repair OBDII code B2549 Dodge?

The cost of repairing this code can vary depending on the underlying issue, such as replacing a faulty tonneau retract limit switch, repairing wiring, or realigning the switch. It is advisable to consult a mechanic for an accurate estimate.

9. Is OBDII code B2549 Dodge a common issue in Dodge vehicles?

While not as common as some other OBDII codes, issues related to the tonneau retract limit switch performance can occur in Dodge vehicles with tonneau cover systems, particularly in older models or those with high mileage.

10. Can I prevent OBDII code B2549 Dodge from occurring in the future?

Regularly checking the tonneau cover system for proper operation, ensuring the limit switch is aligned correctly, and addressing any issues promptly can help prevent the recurrence of this OBDII code in the future.