Hi there,
It looks like all the LEDs and parts, including the door lamps, are not powered. Sometimes it glows weakly, but I don't know what caused it. How should I troubleshoot?
I have confirmed that 14V is coming from the battery to the alternator. When ③ and ② come into contact as shown in the image, it drops to 6V.
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IMG-2528 (1).jpg