U0137 Code - Lost Communication with Trailer Brake Control Module
Quick Answer
When the diagnostic trouble code U0137 appears, it indicates that there is a communication problem between the vehicle's onboard computer system and the trailer brake control module. Common causes include Faulty wiring or connections between the vehicle's computer system and the trailer brake control module, Malfunctioning trailer brake control module, Software issues within the vehicle's computer system. 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
- U0137 indicates Lost Communication with Trailer Brake Control Module.
- Common causes
- Common causes include Faulty wiring or connections between the vehicle's computer system and the trailer brake control module, Malfunctioning trailer brake control module, Software issues within the vehicle's computer system.
- 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 U0137 Description
When the diagnostic trouble code U0137 appears, it indicates that there is a communication problem between the vehicle's onboard computer system and the trailer brake control module. This module is responsible for controlling the trailer brakes when towing a trailer, ensuring safe braking performance. When communication is lost with this module, it can lead to issues with the trailer brake system, potentially compromising safety while towing.
Common Causes of U0137
- Faulty wiring or connections between the vehicle's computer system and the trailer brake control module
- Malfunctioning trailer brake control module
- Software issues within the vehicle's computer system
- Damaged communication lines between the two components
- Water or corrosion affecting the trailer brake control module
Symptoms of U0137
- Dashboard warning lights related to the trailer brake system
- Inoperative trailer brakes while towing
- Erratic trailer braking behavior
- Reduced braking power when towing a trailer
- Poor overall braking performance
How to Fix U0137
- Perform a diagnostic scan to retrieve the U0137 code and identify the specific cause of the communication failure
- Inspect wiring, connections, and communication lines for any damage or corrosion
- Test the trailer brake control module for proper functionality and replace if necessary
- Update software in the vehicle's computer system to address any communication issues
- Clear the U0137 code from the system and test the trailer brake system to ensure proper operation
Cost to Fix U0137
The typical repair costs for resolving the U0137 code can range from $150 to $500, depending on the specific cause of the communication failure and the required repairs. This estimate includes parts and labor, but it's important to note that actual costs may vary based on factors such as location, vehicle make and model, and the extent of the damage. Diagnostic time and labor rates at auto repair shops can also influence the final repair bill, with rates typically ranging from $80 to $150 per hour. It's advisable to consult with a qualified mechanic or repair shop for a more accurate cost estimate tailored to your specific situation.
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Code U0137 Information for Specific Makes
- U0137 Buick — Lost Communication with Trailer Brake Control Module
- U0137 Cadillac — Lost Communication with Trailer Brake Control Module
- U0137 Chevrolet — Lost Communication with Trailer Brake Control Module
- U0137 Chrysler — Lost Communication With Trailer Brake Control Module
- U0137 Dodge — Lost Communication With Trailer Brake Control Module
- U0137 Ford — Lost Communication With Trailer Brake Control Module
- U0137 GMC — Lost Communication with Trailer Brake Control Module
- U0137 Jeep — Lost Communication With Trailer Brake Control Module
- U0137 Lincoln — Lost Communication With Trailer Brake Control Module
- U0137 Mercury — Lost Communication With Trailer Brake Control Module
- U0137 RAM — Lost Communication With Trailer Brake Control Module
Frequently Asked Questions about U0137 Code
1. What are the common symptoms of OBDII code U0137, Lost Communication with Trailer Brake Control Module?
- Common symptoms include a disabled trailer brake system, malfunctioning brake lights on the trailer, and an illuminated "Trailer Brake Module Fault" warning on the dashboard.
2. What are the possible causes of OBDII code U0137?
- The code U0137 can be triggered by issues such as damaged wiring or connectors, a faulty trailer brake control module, a blown fuse related to the trailer brake system, or a communication error between modules.
3. How can I diagnose OBDII code U0137?
- Diagnosing U0137 involves checking the trailer brake control module for power and ground, inspecting the wiring and connectors for damage, scanning the system for any additional fault codes, and conducting a thorough visual inspection.
4. Can I still drive my vehicle with OBDII code U0137 present?
- It is not recommended to drive your vehicle with the code U0137 active, as it may compromise the operation of your trailer brake system and pose a safety risk when towing.
5. How can I repair OBDII code U0137, Lost Communication with Trailer Brake Control Module?
- Repairs for U0137 may involve repairing or replacing damaged wiring or connectors, replacing the trailer brake control module if faulty, checking and replacing any blown fuses, and ensuring proper communication between modules.
6. Will resetting the OBDII code U0137 make it go away permanently?
- Resetting the code may temporarily clear the warning, but if the underlying issue causing the communication error is not addressed and repaired, the code is likely to reappear upon the next system check.
7. Is it possible to fix OBDII code U0137 at home, or should I seek professional help?
- Depending on your level of automotive expertise and access to diagnostic tools, you may be able to address U0137 at home by checking basic connections and inspecting for visible damage. However, for more complex issues, it is recommended to seek professional assistance.
8. Can extreme weather conditions cause OBDII code U0137 to trigger?
- Yes, extreme weather conditions such as heavy rain, snow, or extreme temperatures can potentially damage wiring, connectors, or modules involved in the trailer brake system, leading to the triggering of code U0137.
9. How can I prevent OBDII code U0137 from occurring in the future?
- To prevent U0137 from occurring, regularly inspect and maintain the trailer brake control system, keep connectors clean and free of corrosion, ensure proper wiring insulation, and avoid overloading the trailer brake system.
10. Are there any recalls or technical service bulletins related to OBDII code U0137?
- It is advisable to check with your vehicle manufacturer or authorized dealerships for any recalls or technical service bulletins related to U0137 to see if there are known issues or recommended solutions for your specific vehicle model.
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