B-3 Code L204 With L205 or L206

Codes L204 and L205 or L204 and L206 indicate a loss of power to an OSM address pin. When such an addressing failure exists on pin F of OSM # 5 or pin E of OSM # 6, its address becomes the same as that of OSM # 4. Therefore, when the Body Control Module (BCM) sends a command on the data line to OSM # 4, both OSM # 4 and the misaddressed OSM both respond resulting in a lighting fault. When the BCM sends a command to the misaddressed OSM, there is not an OSM available to respond resulting in a lighting fault. The table below lists the Computer Control Driver Information Center (CCDIC) messages and symptoms of these conditions.