Instrument/Speedometer Light not working

Discussion in 'Sparky's corner' started by Skylark-72, Oct 26, 2021.

  1. Skylark-72

    Skylark-72 Eric S (72 Custom Convertible)

    Hi all I have searched some the threads and can’t seem to find a fix. My 72 skylark cluster lights aren’t working for the speedometer and gas gauge. The blinker, brake, oil, seatbelt and brights indicators all work however the backlights aren’t working. I have installed new switch, all exterior lights (head light & Parking) work as well as interior when I turn switch all the way left. I have double checked the ground wires, I just can’t seem to figure out any ideas?!
     
  2. hwprouty

    hwprouty Platinum Level Contributor

    Bulbs ?
     
  3. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    I believe there is a fuse just for the dash lighting. It’s the small one near the bottom of the fuse box, maybe 4 Amp.
     
    Skylark-72 likes this.
  4. Skylark-72

    Skylark-72 Eric S (72 Custom Convertible)

    Have put new bulbs in… nada
     
    hwprouty likes this.
  5. Skylark-72

    Skylark-72 Eric S (72 Custom Convertible)

    I put a brand new fuse in, and still nothing.
     
  6. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    OK, you need to start testing with a test light. First see if you have power at the fuse. Then the Gray wire supplies all the bulbs in the dash. You'll need to see if you have a break somewhere. You can check that the dash is grounded as well.

    1972GaugeLighting.JPG
     
    Skylark-72 and 69GS430/TKX like this.
  7. Skylark-72

    Skylark-72 Eric S (72 Custom Convertible)

    Ok used multi meter I have power going to one side of the fuse (right side) not getting a reading on the other side however
     
  8. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    Then the fuse is bad. It should conduct from one side to the other unless it is blown. You might have replaced it, but it could have blown immediately.
     
    Skylark-72 likes this.
  9. Skylark-72

    Skylark-72 Eric S (72 Custom Convertible)

    Def was the case! Once again Larry thank you I’m gonna have to mail you a case of beer soon! Did the led upgrade now it looks amazing! Just need new dash housing and to polish up the gauges.
     
    hwprouty likes this.
  10. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    Very Good!:)
     
    Skylark-72 likes this.

Share This Page