{"nhtsa_id":10183595,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2020-12-03","date":"2020-11-17","document_id":"09-013-20-3663c","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM:BODY CONTROL MODULE/BCM; EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM:SOFTWARE","mfr_system":null,"summary":"When the Telematics Communication Unit (TCU) has been replaced or reprogrammed and the software is updated to ones shown below, DTC U2050:55-TCU (Activation of remote control not implemented) may be stored in memory with the message “In-Vehicle Network Malfunction” displayed in the multi-information display. This is caused by a communication error between the TCU, the Connectivity Master Unit (CMU), and the Body Control Module (BCM) when the control software in them are not of the version being ready for activation of connected service. To correct this concern, the control software of the TCU, CMU and BCM have been modified.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10183595-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10183595-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10183595","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"equipment","name":"Equipment and accessories","parent":null},{"id":"body-control-module","name":"Body control module","parent":"electrical"},{"id":"software","name":"Software","parent":"electrical"}],"codes":["U2050"],"topics":[],"vehicles":[{"make":"MAZDA","model":"MAZDA3","year_from":2019,"year_to":2019,"match":"exact","vehicle_ids":["2019_mazda_mazda3"]}],"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":[]}