[Tigers] Light Switch Outputs

[STEVE MURPHY]

I'd be interested in the diagram for adding a relay to the headlights. Horn too, if you have that.

Thank you,

Steve
> On 12/01/2025 2:00 PM EST tigers-request at autox.team.net wrote:
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> Today's Topics:
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>    1. Light Switch Outputs (gharlowe at comcast.net)
>    2. Re: Light Switch Outputs (Theo Smit)
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> All –
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> Long story short, I decided to take an inventory of how my Tiger’s lights are reacting in response to the dash light switch.   In mid-position (marker lights only?), the two front white marker lights come on and the bottom tail light lenses illuminate.   Brake pedal application doubles the brightness of the bottom lens. 
> 
>  
> 
> With the dash light switch in the fully ON position, I get headlights, but nothing in the yellow/white lenses in the front; however, I also get nothing in the rear lights (whatsoever!).   This doesn’t seem right or safe, but I’ve forgotten after so many years of daylight-only driving which lights are supposed to be illuminated with the switch in mid-position vs full position.  
> 
>  
> 
> To aid in troubleshooting, what should happen front/back in mid-switch position vs full position?  
> 
>  
> 
> Thanks and Happy Holidays to you!
> 
>  
> 
> Graham Harlowe
> 
> B382001466
> 
>  
> 
>                                                                                             That sounds like your switch is not working properly anymore. If you go under the dash and switch the position of the headlight wire and the taillight/marker light wires, you should find that the behavior is reversed. Or maybe the switch will just fall apart... they are not especially sturdy, and they can get distorted because of heating due to all the light current flowing through the switch. 
> 
> If/when you replace the switch, you should consider wiring in a relay to power the headlights. That reduces the current through the switch from 10 amps to less than one amp. 
> 
> If you have questions about that I can draw up a diagram. 
> 
> While you are at it, also make sure that the ground connections to all the lights are good. 
> 
> Cheers,
> Theo
> 
> 
> > On Nov 30, 2025, at 4:14 PM, gharlowe--- via Tigers <tigers at autox.team.net> wrote:
> > 
> > 
> 
> > 
> > 
> >  
> > 
> > All –
> > 
> >  
> > 
> > Long story short, I decided to take an inventory of how my Tiger’s lights are reacting in response to the dash light switch.   In mid-position (marker lights only?), the two front white marker lights come on and the bottom tail light lenses illuminate.   Brake pedal application doubles the brightness of the bottom lens. 
> > 
> >  
> > 
> > With the dash light switch in the fully ON position, I get headlights, but nothing in the yellow/white lenses in the front; however, I also get nothing in the rear lights (whatsoever!).   This doesn’t seem right or safe, but I’ve forgotten after so many years of daylight-only driving which lights are supposed to be illuminated with the switch in mid-position vs full position.  
> > 
> >  
> > 
> > To aid in troubleshooting, what should happen front/back in mid-switch position vs full position?  
> > 
> >  
> > 
> > Thanks and Happy Holidays to you!
> > 
> >  
> > 
> > Graham Harlowe
> > 
> > B382001466
> > 
> >  
> > 
> >                                                                                             
> > 
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