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U0139: Lost Communication With Suspension Control Module B

What Does U0139 Mean?

U0139 is a diagnostic trouble code indicating: Lost Communication With Suspension Control Module B. This code relates to the network communication system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

What To Do Next

  1. 1
    Find your vehicle above

    Click your make and model for real owner reports and common causes specific to your vehicle.

  2. 2
    Check for recalls

    Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.

  3. 3
    Get a professional diagnosis

    A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.

Related Codes

U0134 Lost Communication With Power Steering Control Module - Rear U0135 Lost Communication With Differential Control Module - Front U0136 Lost Communication With Differential Control Module - Rear U0137 Lost Communication With Trailer Brake Control Module U0138 Lost Communication With All Terrain Control Module U0140 Lost Communication With Body Control Module U0141 Lost Communication With Body Control Module A U0142 Lost Communication With Body Control Module B