1931 Ford Model A!! No LIGHTS? (Fastest Diagnosis EVER!)

This GORGEOUS 1931 Ford Model A is by far the OLDEST vehicle I have ever diagnosed!!
Customer says that none of his LIGHTS work after replacing the entire wiring harness and light switch.
He said that he had the factory service manual and wiring diagram, so let’s see what we’re missing!
Maybe we can even get the lights working No Parts Required 🙂
UY CHAN TS101 SOLDERING IRON:
https://www.amazon.com/dp/B07SQDZ9SV?linkCode=ssc&tag=onamzpineholl-20&creativeASIN=B07SQDZ9SV&asc_item-id=amzn1.ideas.H4433MU1BH5V&ref_=aip_sf_list_spv_ons_d_asin
AstroAI Digital DC AMP Clamp Meter:
https://www.amazon.com/dp/B08MTCMWLB?linkCode=ssc&tag=onamzpineholl-20&creativeASIN=B08MTCMWLB&asc_item-id=amzn1.ideas.UKPVIGM4POWZ&ref_=aip_sf_list_spv_ofs_mixed_d_asin
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