U0137 RAM Code - Lost Communication With Trailer Brake Control Module
Quick Answer
The U0137 diagnostic trouble code (DTC) indicates that there is a communication error between the vehicle's onboard computer system and the Trailer Brake Control Module. Common causes include Faulty wiring connections between the vehicle's computer system and the Trailer Brake Control Module, Damaged wiring harnesses leading to communication errors, Malfunctioning Trailer Brake 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
- U0137 RAM indicates Lost Communication With Trailer Brake Control Module.
- Common causes
- Common causes include Faulty wiring connections between the vehicle's computer system and the Trailer Brake Control Module, Damaged wiring harnesses leading to communication errors, Malfunctioning Trailer Brake 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code U0137 RAM Description
The U0137 diagnostic trouble code (DTC) indicates that there is a communication error between the vehicle's onboard computer system and the Trailer Brake Control Module. This module is responsible for controlling the trailer brakes, ensuring they function properly when towing a trailer. When communication is lost with this module, it can lead to issues with the trailer brakes, potentially compromising safety while towing.
Common Causes of U0137 RAM
- Faulty wiring connections between the vehicle's computer system and the Trailer Brake Control Module.
- Damaged wiring harnesses leading to communication errors.
- Malfunctioning Trailer Brake Control Module.
- Software glitch or calibration issue with the module.
- Issues with the vehicle's onboard computer system.
Symptoms of U0137 RAM
- Warning light on the dashboard indicating a communication error with the trailer brake control module.
- Inability to control trailer brakes effectively while towing a trailer.
- Uneven braking or reduced braking power when towing a trailer.
- Vehicle stability and handling issues while towing.
How to Fix U0137 RAM
- Begin by inspecting the wiring connections between the vehicle's computer system and the Trailer Brake Control Module. Ensure all connections are secure and free of corrosion or damage.
- Check the wiring harnesses for any signs of damage or wear. Replace any damaged wiring harnesses as needed.
- Test the Trailer Brake Control Module for proper functionality. Replace the module if it is found to be malfunctioning.
- Update or reprogram the module software to address any software glitches or calibration issues.
- Clear the DTC and test the vehicle to ensure the communication error with the trailer brake control module has been resolved.
Cost to Fix U0137 RAM
The typical repair costs for addressing a communication error with the trailer brake control module can vary depending on the specific cause of the issue. In general, the cost of parts such as a new Trailer Brake Control Module or wiring harnesses can range from $200 to $500. Additionally, labor costs for diagnosis and repair can range from $100 to $300, with total repair costs typically falling between $300 and $800.
Need more information about the U0137 RAM code?
Need more information on how to fix the U0137 RAM code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the U0137 RAM code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about U0137 RAM Code
1. What does the OBDII code U0137 mean on a RAM vehicle?
The U0137 code indicates a loss of communication with the Trailer Brake Control Module (TBCM), which can affect the trailer brake system's functionality.
2. What are the symptoms of the U0137 code on a RAM?
Common symptoms include the trailer brakes not functioning, a warning light or message on the dashboard, and potentially reduced towing capability.
3. What causes the U0137 code to appear?
The code is typically caused by faulty wiring, a damaged Trailer Brake Control Module, a failed CAN bus connection, or a blown fuse related to the TBCM.
4. Can I still drive my RAM with the U0137 code active?
Yes, you can still drive the vehicle, but the trailer brake system may not work, which can be hazardous when towing a trailer.
5. How do I diagnose the U0137 code on my RAM?
Start by checking the wiring and connectors for damage or corrosion, inspect the fuses related to the TBCM, and use a scan tool to verify communication on the CAN bus network.
6. What are common fixes for the U0137 code on a RAM?
Repairs may include fixing or replacing damaged wiring or connectors, replacing a blown fuse, reprogramming or replacing the TBCM, or addressing issues with the CAN bus network.
7. Can a weak battery cause the U0137 code?
Yes, low voltage or a weak battery can disrupt communication with the Trailer Brake Control Module and trigger the code.
8. How much does it cost to repair the U0137 code on a RAM?
Repair costs vary but may range from $100 for basic wiring repairs to $500 or more if the Trailer Brake Control Module needs replacement.
9. Can a software update fix the U0137 code?
In some cases, a software update for the vehicle’s control modules may resolve communication issues and clear the U0137 code.
10. Do I need to reset the code after fixing the problem?
Yes, after completing repairs, use an OBDII scan tool to clear the code and verify that it does not return.
Discuss the causes and fixes for U0137 RAM OBDII Code
Code U0137 RAM comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.