{"nhtsa_id":10121813,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-11-03","date":"2017-09-22","document_id":"21-033-17 REV. A","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM:SOFTWARE","mfr_system":null,"summary":"Flash: Transmission Diagnostic and Shift Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. Customers may experience a (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs):P0887-00 - TCM Power Control Circuit High. P0901 - Clutch Actuator Circuit Range/Performance. U0001-00 - Can C Bus. U1412 - Implausible Vehicle Speed Signal Received.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10121813-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10121813-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10121813","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"software","name":"Software","parent":"electrical"}],"codes":["P0887","P0901","U0001","U1412"],"topics":[],"vehicles":[{"make":"FIAT","model":"500X","year_from":2017,"year_to":2017,"match":"exact","vehicle_ids":["2017_fiat_500x"]}],"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":[]}