Programming Headlights
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Cross-Country
Joined: Apr 2015
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From: Everett
Programming Headlights
I have a 2003 Ford F350 Superduty truck, same as in my signature. The headlights will come on automatically if the light dims, but can they be reprogrammed to come on when in the auto position any time the engine is running?
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Logistics Pro
Joined: Jan 2010
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The 'auto' function on the headlamps in that year truck works based off a sensor on the top center of the dash by the windshield. Looks like a small bubble. When the ambient lighting reaches a certain threshold, the sensor is triggered and the lights will come on (the delay between the sensor being triggered and the lights coming on varies, my '03 was almost instant, my '04 took a second or two).
I actually reprogrammed my '03 to have the lights on whenever the key was on by folding a work glove in half and tucking it over the sensor and between the windshield and dash. It would rarely move, no one ever noticed it, but my lights were on whenever the key was on. I just found a glove roughly the same color as the dash and it worked well.
That said, if you really want to make this change, you can 'bypass' the sensor by unplugging it and jumpering the wires with a properly-rated resistor...I don't know what the resistor has to be rated to, however.
I actually reprogrammed my '03 to have the lights on whenever the key was on by folding a work glove in half and tucking it over the sensor and between the windshield and dash. It would rarely move, no one ever noticed it, but my lights were on whenever the key was on. I just found a glove roughly the same color as the dash and it worked well.
That said, if you really want to make this change, you can 'bypass' the sensor by unplugging it and jumpering the wires with a properly-rated resistor...I don't know what the resistor has to be rated to, however.
Hotshot
Joined: Jan 2004
Posts: 19,765
Likes: 1,082
From: St Louis
can they be reprogrammed to come on when in the auto position any time the engine is running?
No software re-programming, though.
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