U0137
Lost Communication With Trailer Brake Control Module
U0137 is an OBD-II diagnostic trouble code meaning: Lost Communication With Trailer Brake Control Module. Common causes: open or short circuit in the module power supply circuit, trailer brake control module malfunction. Estimated repair cost: $56–167.
Symptoms
- Check Engine Light Is On
- No response from trailer brakes
- Error message on the dashboard
- Disabling Trailer Brake Assist
- Trailer electrical problems
Causes
- Open or short circuit in the module power supply circuit
- Trailer brake control module malfunction
- Problems with the wiring harness to the module
- Connector pin corrosion
- Software error in the ECU
How to Fix
- Check fuses associated with the system
- Inspect the wiring harness and connectors for damage.
- Check power and ground on the module
- Test the trailer brake control module
- Reset the error and check for its reappearance
Related codes
Error U0137 by Vehicle Brand
FAQ
What does the U0137 code mean?
U0137 is an OBD-II diagnostic trouble code that indicates: Lost Communication With Trailer Brake Control Module
What causes a U0137 error code?
The most common causes of U0137 include: Open or short circuit in the module power supply circuit; Trailer brake control module malfunction; Problems with the wiring harness to the module; Connector pin corrosion.
How do I fix a U0137 diagnostic trouble code?
To fix U0137: Check fuses associated with the system. Inspect the wiring harness and connectors for damage.. Check power and ground on the module. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U0137?
Yes, but get it checked soon
How much does it cost to fix U0137?
The estimated repair cost for U0137 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat