Webthe document provides information on fault codes generated by the bulkhead module (bhm), including: 1) tables listing j1939 and j1587 fault codes from the bhm with. The document provides fault code information for the bulkhead module (bhm) on a vehicle, including j1939 and j1587 fault codes. It describes common faults like a. Webthis service bulletin contains information on all proprietary bulkhead module (bhm) fault codes for j1587 and. J1939 data bus protocols, how to view these codes, and what they. Websuspect parameter number (spn) and failure mode indicator (fmi) full code list. The fault’s spn and fmi numbers can be found in the dtc tables in this publication. Figure 12 dtc report 4. Double click on any fault and the. Search results for both documents. I have a freightliner m2 106 and i have a recurring code in the bulkhead module spn:524257 fmi: 4 and a 30 amp fuse for the chassis module that. Webthis document provides a list of fault codes for the bulkhead module (bhm) with a mid of 164 on freightliner business class m2 trucks. It includes 101 fault codes with.