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U1531 Code – Headlamp Control Module/Headlamp Leveling Control Module Lost Communication With Left Headlamp Assembly On LIN Bus

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What are the Possible Causes of the Code U1531?
  • Faulty Left Headlamp Assembly
    • Left Headlamp Assembly harness is open or shorted
  • Left Headlamp Assembly circuit poor electrical connection
  • Faulty Headlamp Control Module/Headlamp Leveling Control Module

    • Need help with this OBD II code? Our mechanics are available within west Michigan to help. Outside of our service area? Visit our Car Help Section where you can ask questions and get answers.

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