One thing you might notice is color coding in the FSMs might not be accurate and should rely on pinouts. I've seen different versions in worldwide based FSMs on the 460 alone. Some 150 series Prados have significantly different wiring harnesses in some areas. I came across this when doing the initial research on the crawl/MTS mod years back. Only some of the early Prados can be easily retrofit with crawl & MTS. I didn't research on later model years but I have a feeling '18+ are probably similar in the increased complexity that 20+ 460 offers up for crawl & MTS. 20+ headlights went strictly to CANBUS control on the 460.