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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

Headlight Switch Issue

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Old Aug 22, 2024 | 02:28 PM
  #1  
rjlavs's Avatar
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Headlight Switch Issue

I have a cheap aftermarket radio in my 1994 F250 XL, it has Android Auto on it. When I turn the headlights off and push the switch all of the way in, the radio will go to 'night mode', if I pull it out very slightly the radio will go back to 'day mode'. The headlights/running lights don't come on when it's pushed in all the way but its like some circuit is going hot. I have replaced the dash panel bezel with an aftermarket version, could this allow the switch to be pushed in too far? Should I just add a spacer somewhere or does the switch need to be replaced? Has anyone encountered this before?
 
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Old Aug 23, 2024 | 08:46 AM
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Test for power at the back of the radio on the dimmer wire when you press the headlight switch in.
 
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Old Aug 23, 2024 | 11:19 AM
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Power for the headlights goes through the switch.

They have a record of melting as harnesses age, connections loosen & corrode & grounds get crusty.

Fix all that, replace switch & some of us add remote relays to stop the stress on the switch.

No idea on the replacement panel depth.
 
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Old Dec 4, 2025 | 03:02 PM
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In my case, when I got the truck there were only cut wires where the radio should be, so I couldn't use the harness from crutchfield directly.
 
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