Bulkhead Module Fault Codes 524280 thru 524286 with FMI 7
Posted by: Duaparts on
Applicable Vehicles
This solution only applies to vehicles that where built with a Bulkhead Module (BHM).
Issue
As of April of 2016 production vehicles using BHMs where updated with new SPN/FMI codes. As part of this release, 7 fault codes were duplicated and the SPN description does not match the actual problem. This only applies to SPNs 524280 thru 524286 with the FMI 7. If the SPN has an FMI other than 7, then the code is applicable and should be diagnosed per the fault code. If the Code is one of these SPNs 524280, 524281, 524282, 524283, 524284, 524285 or 524286 with an FMI 7 then the following chart should be used to diagnose the problem using the column labeled "Troubleshooting Per the Description" (forth Column).
| SPN | FMI | Description showing in diagnostic Tool For SPN | Troubleshoot Per the Description Below With original SPN |
| 524280 | 7 | The component ID in the manufacturing area does not match the component ID that the parameter data was created to | BHM / CHM Ignition Mismatch (SPN 6985) |
| 524281 | 7 | Application to parameter compatibility fails | Wake up Hardware Fault (SPN 6922) |
| 524282 | 7 | Parameter Flash area fails checksum | Missing Smart Switch (SPN 6918) |
| 524283 | 7 | Application Flash area fails checksum | Duplicated Smart Switch (SPN 6919) |
| 524284 | 7 | Boot block Flash area fails checksum | Extra Smart Switch (SPN 6920) |
| 524285 | 7 | Boot hold line is active | Unknown Keep awake Fault (SPN 6921) |
| 524286 | 7 | RAM test fails | EOF Feedback Fault (SPN 6955) |
| 524286 | 7 | RAM test fails | EOF Feedback No Fault (SPN 6954) |
