U0137 2018 Chevrolet Silverado Code - Lost Communication with Trailer Brake Control Module
Quick Answer
The U0137 code for a 2018 Chevrolet Silverado indicates that there has been a loss of communication with the Trailer Brake Control Module (TBCM). Common causes include Faulty Trailer Brake Control Module (TBCM), Damaged wiring or connectors leading to the TBCM, Software issues affecting communication with the TBCM. 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 2018 Chevrolet Silverado indicates Lost Communication with Trailer Brake Control Module.
- Common causes
- Common causes include Faulty Trailer Brake Control Module (TBCM), Damaged wiring or connectors leading to the TBCM, Software issues affecting communication with the TBCM.
- 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 2018 Chevrolet Silverado Description
The U0137 code for a 2018 Chevrolet Silverado indicates that there has been a loss of communication with the Trailer Brake Control Module (TBCM). The TBCM is a crucial component in the vehicle's braking system, responsible for controlling and monitoring the trailer brakes. When communication with the TBCM is lost, it can lead to issues with the trailer brake system, potentially affecting the vehicle's ability to safely tow a trailer.
Common Causes of U0137 2018 Chevrolet Silverado
- Faulty Trailer Brake Control Module (TBCM).
- Damaged wiring or connectors leading to the TBCM.
- Software issues affecting communication with the TBCM.
- Malfunction in the vehicle's main computer system.
- Corrosion or water damage affecting the TBCM connections.
Symptoms of U0137 2018 Chevrolet Silverado
- Trailer brakes not responding properly or not engaging at all.
- Warning lights related to the trailer brake system appearing on the dashboard.
- Loss of trailer brake control functionality.
- Issues with ABS system or traction control while towing a trailer.
How to Fix U0137 2018 Chevrolet Silverado
- Begin by conducting a thorough inspection of the trailer brake system, including the TBCM, wiring, and connectors.
- Test the TBCM for proper functionality using a diagnostic scan tool to identify any communication errors.
- If the TBCM is found to be faulty, replace it with a new unit and ensure proper programming and calibration.
- Check and repair any damaged wiring or connectors leading to the TBCM.
- Clear the diagnostic trouble codes and perform a test drive to verify that the issue has been resolved.
Cost to Fix U0137 2018 Chevrolet Silverado
The typical repair costs for addressing a U0137 code related to the Trailer Brake Control Module in a 2018 Chevrolet Silverado can vary depending on the extent of the issue and the specific repairs needed. On average, the cost for parts and labor for this repair could range from $200 to $500. It is important to note that diagnostic time and labor rates at auto repair shops can vary based on location, vehicle make and model, and other factors. It is recommended to contact local repair shops to obtain a more accurate estimate based on your specific situation.
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Frequently Asked Questions about U0137 2018 Chevrolet Silverado Code
1. What does the OBDII code U0137 mean on a 2018 Chevrolet Silverado?
The U0137 code indicates a loss of communication with the Trailer Brake Control Module (TBCM).
2. What are the common symptoms of the U0137 code?
Symptoms include the trailer brake system not functioning, warning lights on the dashboard, and potential issues with towing performance.
3. What causes the U0137 code to appear?
Common causes include faulty wiring or connectors between the TBCM and other modules, a malfunctioning TBCM, or a failed power or ground connection.
4. Can driving with the U0137 code cause further damage?
While it may not directly harm the vehicle, towing without functional trailer brakes can be dangerous and may lead to accidents.
5. How can I diagnose the U0137 code on my Silverado?
Start by inspecting the TBCM wiring and connectors for damage or corrosion, checking the module’s power and ground, and using a scan tool to verify communication.
6. Is the Trailer Brake Control Module typically the issue with U0137?
Not always. While the TBCM can fail, the issue is more often caused by damaged wiring, loose connections, or software issues.
7. Can I fix the U0137 code myself?
If you're experienced with automotive repairs, you can inspect and repair wiring or connectors. However, module testing and programming may require professional tools.
8. How much does it cost to repair the U0137 code?
Repair costs vary but typically range from $100 to $500, depending on whether it’s a wiring issue or a TBCM replacement.
9. Does the U0137 code require TBCM reprogramming?
If the TBCM is replaced, it will likely need reprogramming with a GM-specific scan tool.
10. Can a blown fuse cause the U0137 code?
Yes, a blown fuse in the circuit powering the TBCM can cause the module to lose communication, triggering the code.
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