{"nhtsa_id":10191380,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-05-03","date":"2021-02-25","document_id":"34-074","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"The current chassis harness connector contains a wire that is no longer necessary with the latest electrical architecture. The presence of the wire could result in a false fault code.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10191380-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10191380-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10191380","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"PETERBILT","model":"520","year_from":1990,"year_to":2016,"match":null,"vehicle_ids":[]},{"make":"PETERBILT","model":"520","year_from":2017,"year_to":2021,"match":"exact","vehicle_ids":["2017_peterbilt_520","2018_peterbilt_520","2019_peterbilt_520","2020_peterbilt_520","2021_peterbilt_520"]}],"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":[]}