The 13-14 S197 Smart Junction Box - Unveiled

[slonison]

For about 4 months, I have been deconstructing the 2013 Smart Junction Box. This generally works for both the 2013 and 2014. I cannot comment on whether or not it is accurate for the other S197 models.

I have torn it down, mapped out the circuits (no fully but almost).

Here is a word document with every single wire going in and out of the SJB explained.
S197 Smart Junction Box - Google Docs

Here is a video explain what, where, when, how, and why
S197 to S550 Steering Wheel Swap - Part 24a - Identifying the Power Sources - YouTube

Here is a video on adding power to the SJB without using Add a fuse.
S197 to S550 Steering Wheel Swap - Part 24b - Hooking up the Power Sources in the Car - YouTube

This document is good for anyone who needs to identify and add an always on power source or a run/start only power source.

 

[S8MS-01904]

Thank you.