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Whmy transformer switch is set on auto, the lights stopped coming on at dusk?

When I set to test the lights do come on.

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2006 Dodge Grand Caravan All 3 brake lights don't work. Replaced burnt out high center bulb, checked fuse under hood, replaced Stop Light Switch.

Is there power to the stop light switch? You never say any electrical testing was done. Use a 12 volt test light to check this. You can buy one for about $5 from auto parts store.

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i had a simular problem, if you haven't already check the fueses. try changing the light bulbs.

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Headlights won't come on sometimes weather on auto or manual.The dims lights have always worked .I replaced a bulb on the dim and the high beams stopped working. That has been a while back.Two days ago,the...

Yes sounds like the sensor.
Make sure you install the correct bulb type (voltage and wattage) to replace the old one.
Also check all your wiring and plugs to make sure you have good reliable electrical connections, they need to be tight, free from obvious dirt and corrosion.
If you have a multimeter do a Continuity test on the wiring
Note: When testing the circuit continuity, be sure that the power of the circuit has been shut down and all capacitors have been discharged fully. (this is to protect your device and in high voltages to protect you)
This should help you identify if you have a wiring issue.

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