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Hello, my name is***** most likely means the smart junction box has failed which is the interior fuse box that has a built in module. Unplug junction box and check to see if yellow/blue wire at pin 30 has ground with headlights on and in low position, if so replace the smart junction box. This would be around a $500 repair at a shop. Let me know if you have more questions or if there is anything else I can do to help. Thanks.
If you use a test light, put test light clamp on battery negative then when touching pin 30 it should turn on test light proving ground is good. Or with a meter you would put one lead on battery positive and other lead on pin 30, if it shows 12v on meter then you know ground is good. Let me know if you have more questions, thanks.
You will need to remove the fuse box and unplug connector. Once you have connector unplugged it is the yellow/blue wire 30 pins in. It should be only yellow/blue wire on the connector. Let me know how it goes, thanks.
Sounds good, I'll talk to you then. Thanks.