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U0542: Invalid Data Received From Headlamp Control Module A

What Does U0542 Mean?

U0542 is a diagnostic trouble code indicating: Invalid Data Received From Headlamp Control Module A. This code relates to the vehicle systems 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

U0537 Invalid Data Received From Column Lock Module U0538 Invalid Data Received From Digital Audio Control Module C U0539 Invalid Data Received From Digital Audio Control Module D U0541 Invalid Data Received From Entrapment Control Module B U0543 Invalid Data Received From Headlamp Control Module B U0544 Invalid Data Received From Parking Assist Control Module B U0545 Invalid Data Received From Running Board Control Module A U0546 Invalid Data Received From Entertainment Control Module - Front