U0252 Code - Lost Communication With Lighting Control Module Rear 'B'
Quick Answer
The U0252 diagnostic trouble code indicates that there is a communication failure between the vehicle's main computer system and the Lighting Control Module Rear 'B'. Common causes include Faulty wiring or connectors, Corrosion in the electrical connections, Defective Lighting Control Module. 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
- U0252 indicates Lost Communication With Lighting Control Module Rear 'B'.
- Common causes
- Common causes include Faulty wiring or connectors, Corrosion in the electrical connections, Defective Lighting Control Module.
- 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 U0252 Description
The U0252 diagnostic trouble code indicates that there is a communication failure between the vehicle's main computer system and the Lighting Control Module Rear 'B'. The Lighting Control Module is responsible for controlling various lighting functions in the vehicle, such as the rear lights, brake lights, turn signals, and reverse lights. When communication is lost with this module, it can result in a variety of lighting issues and potentially affect the overall performance of the vehicle.
Common Causes of U0252
- Faulty wiring or connectors
- Corrosion in the electrical connections
- Defective Lighting Control Module
- Software issues in the vehicle's main computer system
- Physical damage to the module or wiring
Symptoms of U0252
- Rear lights not working
- Brake lights not functioning properly
- Turn signals not operational
- Reverse lights not working
- Dashboard warning light indicating a lighting system issue
How to Fix U0252
- Begin by checking the wiring and connectors for any signs of damage or corrosion. Repair or replace any damaged components.
- Test the Lighting Control Module to determine if it is functioning properly. Replace the module if necessary.
- Check for any software updates that may be available for the vehicle's main computer system. Update the software as needed.
- Clear the diagnostic trouble code from the vehicle's system using a diagnostic scanner.
- Test the vehicle to ensure that the communication issue has been resolved and that all lighting functions are working correctly.
Cost to Fix U0252
The typical repair costs for addressing a communication issue with the Lighting Control Module Rear 'B' can vary depending on the specific cause of the problem and the labor rates at the auto repair shop. In general, the cost of parts for a new Lighting Control Module can range from $100 to $300, while the labor cost can range from $100 to $200. Overall, the total repair cost for this issue may fall between $200 and $500. It is recommended to obtain quotes from local auto repair shops to get a more accurate estimate based on your vehicle make and model.
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Code U0252 Information for Specific Makes
- U0252 Buick — Lost Communication With Trailer Interface Control Module
- U0252 Cadillac — Lost Communication With Trailer Interface Control Module
- U0252 Chevrolet — Lost Communication With Trailer Interface Control Module
- U0252 GMC — Lost Communication With Trailer Interface Control Module
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