[DeTomaso] Strange electrical - instrument / dash light problem

[MICHAEL DREW]

Dave,

That seems super weird to me. My recollection is that interior and all other exterior lights are one a single tab on the headlight switch, and the headlamps alone are on another tab. Power flows from that tab to the high/low beam switch which routes power to the appropriate filaments in the headlights. 

So the lights on the middle position of the headlight switch including interior lights have no interface with the high/low beam switch. I’m not doubting what you are reporting, I just can’t envision any way that could happen?

Mike 

Sent from my iPhone

> On Jul 1, 2021, at 10:11, Dave Hofman <david.hofman at cox.net> wrote:
> 
>    Good morning,
> 
>   72 Pre-L Headlights work as designed.
> 
>   Dash lights work as designed when low beams are on.
> 
>   When you turn high beams on the instrument & dash lights turn off.
> 
>   Turning low beam lights back on turns instrument and dash lights back
>   on.
> 
> 
>   Any assistance would be greatly appreciated.
> 
>   Dave
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