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Thread: No high beams with dash lights on ?

  1. #1
    Regis turd ab user
    Join Date
    Dec 2006
    Tacomatose, Wa USA

    No high beams with dash lights on ?

    1971 with H4's, stock bulbs without added relays.

    Lights have been working normally for years, currently high beams only work while dash dimmer rheostat is completely turned down. High beams do work with lights off when pulled to flash mode. What am I facing here, dying headlight switch, turn signal switch or will a headlight relay resolve this?

    Enlighten me
    Last edited by 911s55; 08-10-2014 at 05:50 PM.

  2. #2
    Ridge Restorations Whit's Avatar
    Join Date
    Sep 2005
    Paradise, Ca
    I had sporadic headlight issues as well as a high beam issue like you noted. Mine could be traced to corroded wiring in the fuse box making poor connections. Even found some scorching
    66' 911 Coupe (Kinda Gone)
    70' 911T Targa (Across the Pond now)
    68' 912 Targa HW(gone but not forgotton)
    67' 912 Coupe (Under construction)

  3. #3
    Junior Member
    Join Date
    Aug 2014
    South Florida
    start by pulling all bulbs out one by one. Sometimes the bulbs are the problem. Especially the directional which have dual filalments. They sometimes are put in wrong. May not be the problem...but easy to check.

  4. #4
    Senior Member
    Join Date
    Dec 2008
    Woodland Hills, CA
    Sounds like the column switch. You need relays with H4s or they will eventually fry the column switch.

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