{"nhtsa_id":10212493,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-05-31","date":"2021-06-24","document_id":"0810621","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:12V/24V/48V BATTERY; SERVICE BRAKES, AIR:ANTILOCK:WHEEL SPEED SENSOR; EQUIPMENT","mfr_system":null,"summary":"12V Battery Low Charge This bulletin involves testing and possibly replacing the 12V battery. Technicians or 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: U3007-00 - Control Module Input Power \"B\" Circuit/Open. C2100-00 - Battery Voltage Low. C05A4-00 - Wheel Speed Sensors Supply Circuit Low. C2129-00 - Battery Voltage. U3006-00 - Control Module Input Power \"A\" Circuit/Open. B2199-16 - Battery Voltage-Circuit Voltage Below Threshold. B21DD-84 - System Voltage-Signal Below Allowable Range. B2199-16 - Battery Voltage-Circuit Voltage Below Threshold. Technicians or customers may also experience one or more of the following:Depleted 12V battery at delivery to dealer. Vehicle will not start.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10212493-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10212493-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10212493","components":[{"id":"brakes","name":"Brakes","parent":null},{"id":"electrical","name":"Electrical system","parent":null},{"id":"equipment","name":"Equipment and accessories","parent":null},{"id":"battery","name":"12-volt battery","parent":"electrical"},{"id":"abs","name":"Anti-lock brakes","parent":"brakes"},{"id":"wheel-speed-sensor","name":"Wheel speed sensor","parent":"brakes"}],"codes":["B2199","B21DD","C05A4","C2100","C2129","U3006","U3007"],"topics":[],"vehicles":[{"make":"JEEP","model":"WRANGLER","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_jeep_wrangler"]}],"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":[]}