Right turn signal causes high beams to come on

Discussion in 'General Tahoe/Yukon/Escalade Discussion Forum' started by rickcott, Nov 24, 2019.

  1. rickcott

    rickcott New Member

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    2003 Tahoe LS - When you flip the right turn signal the high beam headlights will come on.
    It's not a solid fail - it happens about 1 time out 4.
    When you cancel the right signal the high beams go off.
    Any ideas on where the fault is ? I have read some about the MFC being a possible culprit.
    Other than having a suspicion about what the letters "MFC" stands for I have no clue. LOL