I found some pretty useful LC250 wiring information buried in the Japanese installation manual for the CEP Illumistar kit.
What caught my attention wasn’t really the footwell lighting. CEP actually documents connector locations, pin numbers and factory wire colors for several useful signals in the LC250.
One example is the ROOM power and door courtesy signal. They show exactly where to pick up both circuits.
That can be useful for a lot more than footwell lights — puddle lights, running-board lights, welcome lighting, illuminated sill plates, or anything else you want triggered when the doors open.
CEP’s installation uses taps into the factory wiring. On my truck I used a T-harness for the door signal instead because I wanted to keep the OEM wiring untouched. But the valuable part is knowing exactly where the signal is and how Toyota routes it.
I translated the Japanese manual into English and kept the original CEP photos and connector diagrams. I also added a short reference at the end showing the points where CEP specifically calls for a splice.
Figured this might be useful to anyone doing electrical work on the LC250.
What caught my attention wasn’t really the footwell lighting. CEP actually documents connector locations, pin numbers and factory wire colors for several useful signals in the LC250.
One example is the ROOM power and door courtesy signal. They show exactly where to pick up both circuits.
That can be useful for a lot more than footwell lights — puddle lights, running-board lights, welcome lighting, illuminated sill plates, or anything else you want triggered when the doors open.
CEP’s installation uses taps into the factory wiring. On my truck I used a T-harness for the door signal instead because I wanted to keep the OEM wiring untouched. But the valuable part is knowing exactly where the signal is and how Toyota routes it.
I translated the Japanese manual into English and kept the original CEP photos and connector diagrams. I also added a short reference at the end showing the points where CEP specifically calls for a splice.
Figured this might be useful to anyone doing electrical work on the LC250.
