{"nhtsa_id":10235534,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2023-05-03","date":"2023-04-03","document_id":"TSB230020","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER; ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"This Technical Service Bulletin describes the verification and resolution of the issue of Variable geometry turbocharger (VGT) actuators that have been improperly diagnosed as faulty after incorrect install or calibration steps were performed. This is an update to the previously submitted communication.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10235534-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10235534-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10235534","components":[{"id":"engine","name":"Engine","parent":null},{"id":"turbocharger","name":"Turbocharger or supercharger","parent":"engine"}],"codes":[],"topics":[],"vehicles":[{"make":"CUMMINS","model":"B6.7","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"CUMMINS","model":"ISB6.7","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"CUMMINS","model":"ISL 9","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"CUMMINS","model":"L9","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]}],"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":[]}