Originally Posted by b1aze
Originally Posted by Tee-Dub
I don't have a JB4, but I'm pretty sure you have to use the BMS USB cable (if you bought one) and hook your computer up to the JB4 to get the codes.
This. In the JB4 computer interface, there is a "read codes" button that will spit out, in your case, a bunch of codes.
I have read the codes but all it did was move the speedo an flash some lights no actual codes displayed
11' 335d 91k Miles - JR 2.5 Race, Iaknown Full Exhaust, Wagner FMIC, Forge Boost Pipe. Next Mods - (AAR Race pipe, Iaknown CAI)
08' n54 135i FBO - SOLD