{"nhtsa_id":10222997,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-10-17","date":"2022-01-27","document_id":"0802022","mfr_campaign":null,"replaces":null,"component":"EXTERIOR LIGHTING; ELECTRICAL SYSTEM; BACK OVER PREVENTION","mfr_system":null,"summary":"Flash: Amplifier (AMP) Diagnostic and System Updates This bulletin involves reprogramming the AMP with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DTCs) have been set: B143B-12 - ANC Microphone 1-Circuit Short To Battery. B143C-12 - ANC Microphone 2-Circuit Short To Battery. B143E-12 - ANC Microphone 3-Circuit Short To Battery. B143F-12 - ANC Microphone 4-Circuit Short To Battery.The DTCs are wrongly set and do not affect Active Noise Cancelation (ANC) performance.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10222997-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10222997-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10222997","components":[{"id":"driver-assistance","name":"Driver assistance","parent":null},{"id":"electrical","name":"Electrical system","parent":null},{"id":"lighting","name":"Lighting","parent":null},{"id":"backup-camera","name":"Backup camera","parent":"driver-assistance"}],"codes":["B143B","B143C","B143E","B143F"],"topics":[],"vehicles":[{"make":"JEEP","model":"GRAND CHEROKEE","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_jeep_grand-cherokee"]},{"make":"JEEP","model":"WRANGLER","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_jeep_wrangler"]},{"make":"RAM","model":"1500","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_ram_1500"]},{"make":"RAM","model":"2500","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_ram_2500"]}],"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":[]}