U0249 Code - Lost Communication With Entertainment Control Module Rear 'B'
Quick Answer
The U0249 code indicates that there is a communication problem between the vehicle's main computer system and the Entertainment Control Module Rear 'B'. Common causes include Loose or damaged wiring connections, Water damage to the module, Malfunctioning Entertainment Control Module Rear 'B'. 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
- U0249 indicates Lost Communication With Entertainment Control Module Rear 'B'.
- Common causes
- Common causes include Loose or damaged wiring connections, Water damage to the module, Malfunctioning Entertainment Control Module Rear 'B'.
- 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 U0249 Description
The U0249 code indicates that there is a communication problem between the vehicle's main computer system and the Entertainment Control Module Rear 'B'. This module is responsible for controlling various entertainment features in the vehicle, such as the rear-seat entertainment system, audio controls, and possibly other multimedia functions. When communication is lost with this module, it can result in the malfunctioning of these entertainment features, leading to inconvenience and potential distractions for passengers.
Common Causes of U0249
- Loose or damaged wiring connections.
- Water damage to the module.
- Malfunctioning Entertainment Control Module Rear 'B'.
- Electrical faults in the communication system.
- General wear and tear on the module or wiring.
Symptoms of U0249
- Rear-seat entertainment system not working.
- Radio or audio controls unresponsive.
- Display screen in the rear not functioning.
- Inability to control multimedia features from the rear seats.
How to Fix U0249
- Begin by inspecting the wiring connections between the main computer system and the Entertainment Control Module Rear 'B'.
- Check for any signs of water damage or corrosion on the module and surrounding components.
- Test the module for functionality and communication issues.
- Replace any faulty wiring, connections, or the module itself if necessary.
- Clear the diagnostic trouble codes and reset the system to ensure proper communication.
Cost to Fix U0249
The typical repair costs for addressing the U0249 code can range from $200 to $500, including parts and labor. However, the specific diagnosis time and labor rates at auto repair shops may vary based on factors such as location, vehicle make and model, and engine type. It is recommended to inquire about local rates for a more accurate estimate.
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Code U0249 Information for Specific Makes
- U0249 Buick — Lost Communication With Rear Entertainment Control Module
- U0249 Cadillac — Lost Communication With Rear Entertainment Control Module
- U0249 Chevrolet — Lost Communication With Rear Entertainment Control Module
- U0249 Chrysler — Lost Communication With Last Row Vehicle Entertainment Control Module
- U0249 Dodge — Lost Communication With Last Row Vehicle Entertainment Control Module
- U0249 GMC — Lost Communication With Rear Entertainment Control Module
- U0249 Jeep — Lost Communication With Last Row Vehicle Entertainment Control Module
- U0249 RAM — Lost Communication With Last Row Vehicle Entertainment Control Module
Frequently Asked Questions about U0249 Code
1. What does OBDII code U0249 mean?
U0249 indicates a loss of communication between the vehicle's main control module and the rear entertainment control module 'B'.
2. What are the common symptoms of code U0249?
Symptoms may include a non-functional rear entertainment system, unresponsive controls, or intermittent issues with audio or video playback.
3. What causes code U0249 to appear?
This code can be triggered by faulty wiring or connectors, a failed rear entertainment control module, or communication network issues within the vehicle.
4. Can a dead battery cause U0249?
Yes, a dead or weak battery can disrupt module communication and potentially cause this code.
5. How can I diagnose code U0249?
Start by inspecting the wiring and connectors related to the rear entertainment control module. Use a diagnostic scanner to check for other related communication codes.
6. Can I clear code U0249 without fixing the issue?
Clearing the code without addressing the root cause may temporarily remove it, but it will likely return if the underlying problem persists.
7. Is it safe to drive with code U0249?
Yes, this code typically does not affect the vehicle’s drivability, but you may lose functionality in the rear entertainment system.
8. How do I fix code U0249?
Repairs may involve reconnecting or replacing damaged wiring, updating or reprogramming the control module, or replacing a faulty rear entertainment control module.
9. Will updating the vehicle’s software fix code U0249?
Sometimes, a software update or reprogramming of the control modules can resolve communication issues related to this code.
10. How much does it cost to repair code U0249?
The repair cost varies depending on whether the issue is wiring-related, requires module replacement, or involves reprogramming. It can range from $100 to $1,000 or more.
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