Webon some new business class m2 and 108sd/114sd vehicles, bulkhead module (bhm) fault code spn 6918 fmi 7 displays at key on, despite all switches showing that the. 2014 freightliner 1fvhg3dv4ehfp3134, keep getting code spn 6918, fmi 7, bulkhead module, missing smart switch, mechanical system not responding, or out of. Webjun 21, 2014 · i have a 2012 freight liner m2 chassis , with a cummings diesel engine.

The truck cranked fine, i drove it.