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2018 defender hd10 max electrical issues


Jgonzales

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So my interior light, windshield wiper, power windows, radio, and heater keep coming off and on. Sometimes it’s instant and sometimes it takes forever. Last time the switches on the windows and the wiper were dim but nothing worked. The time before everything worked but as soon as I turned on the heater they would shut off. If I kept the heater blower low everything would run for just a bit. When I pull the relay my light bar on my front bumper shuts off. As soon as I plug the relay in it comes back on but nothing else (wiper, door, interior light, heater, radio) work. I’m stumped. I haven’t replaced the battery or the relay.

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You might check your connections at the battery to make sure they are clean and tight and also check any ground wires to the frame etc. that might be loose or corroded.

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Do you have anything wired in that monitors the voltage?

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