{"nhtsa_id":10023252,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2007-11-06","date":"2007-12-01","document_id":"07166","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM:WIRING:FUSES AND CIRCUIT BREAKERS","mfr_system":null,"summary":"THE 2008 F-SUPER DUTY VEHICLE IS EQUIPPED W/ A SMART JUNCTION BOX (SJB) OR GENERIC ELECTRONIC MODULE (GEM) AND ITS FUNCTION IS TO PROVIDE PROTECTION AGAINST EXCESSIVE CURRENT LOADS, TYPICAL OF A SHORT CIRCUIT, BY SHUTTING DOWN CIRCUIT OPERATION. THE SJB/GEM STRATEGY MAY INTERPRET THE SWITCHING BETWEEN FORD HEADLAMPS AND EMERGENCY VEHICLE LIGHTING, AND VICE-VERSA AS A SHORT-TO-GROUND, CAUSING THE POWER FEEDING A HEADLAMP CIRCUIT THROUGH THE SJB TO BE TURNED OFF. *NJ","document":null,"url":"https://open.wenmarpro.com/bulletins/10023252","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"wiring","name":"Wiring and fuses","parent":"electrical"}],"codes":[],"topics":[],"vehicles":[{"make":"FORD","model":"F-250 SD","year_from":2008,"year_to":2008,"match":"base","vehicle_ids":["2008_ford_f-250"]},{"make":"FORD","model":"F-350 SD","year_from":2008,"year_to":2008,"match":"base","vehicle_ids":["2008_ford_f-350"]},{"make":"FORD","model":"F-450 SD","year_from":2008,"year_to":2008,"match":"base","vehicle_ids":["2008_ford_f-450"]},{"make":"FORD","model":"F-550 SD","year_from":2008,"year_to":2008,"match":"base","vehicle_ids":["2008_ford_f-550"]},{"make":"FORD","model":"F-650 SD","year_from":2008,"year_to":2008,"match":"base","vehicle_ids":["2008_ford_f-650"]},{"make":"FORD","model":"F-750 SD","year_from":2008,"year_to":2008,"match":"base","vehicle_ids":["2008_ford_f-750"]}],"as_of":"2026-10-19","note":"A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.","attribution":[]}