{"nhtsa_id":10218593,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-08-22","date":"2021-08-26","document_id":"08-141-21","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN; ELECTRICAL SYSTEM","mfr_system":null,"summary":"Flash: Battery Pack Control Module (BPCM) Diagnostic and System Updates This bulletin involves updating the BPCM with the latest available software. Customers may experience a false Malfunction Indicator Lamp (MIL) illumination related to PHEV battery: U0111 - Lost Communication With Hybrid Battery Pack Sensor Module. P0EDD-00 - Hybrid/EV Battery Pack B Deterioration. P0CA7-00 - Hybrid/EV Battery Discharging Current High. P1A0C-00 - Battery Energy Control Module System Voltage Low. This software enhancement will improve PHEV battery performance and diagnostics.Additional module flashes are required for this update to be effective, the following modules are all to be updated along with this BPCM update:Hybrid Control Processor (HCP), Auxiliary Hybrid Control Processor (AHCP) also known as the Power Invertor Module (PIM). Transmission Control Module (TCM). Powertrain Control Module (PCM). Integrated Dual Charging Module (IDCM).","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10218593-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10218593-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10218593","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":["P0CA7","P0EDD","P1A0C"],"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":[]}