{"nhtsa_id":11034898,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-07-08","date":"2026-07-03","document_id":"08-260-26","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"Flash: Integrated Dual Charging Module (IDCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation SYMPTOM: the technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set: ● **B22A9-87 - ECU Internal Performance - Missing Message. ● P0D21-00 - Battery Charger \"A\" Output Voltage Too Low.** ● B22A9-16 - ECU Internal Performance-Circuit Voltage Below Threshold. ● B22A9-17 - ECU Internal Performance-Circuit Voltage Above Threshold. ● B22A9-19 - ECU Internal Performance - Overcurrent. ● B22A9-64 - ECU Internal Performance-Signal Plausibility Failure. ● P0D27-00 - Battery Charger 1 Input Voltage Too Low. Customers may also comment on one or more of the following: ● Unable to charge the vehicle with level 2 charger. ● Vehicle would not charge and the charge station circuit breaker in the house / receptacle trips when its plugged into the vehicle. **This bulletin involves reprogramming the IDCM with the latest software available.**","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11034898-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11034898-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11034898","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":["B22A9","P0D21","P0D27"],"topics":[],"vehicles":[{"make":"JEEP","model":"WRANGLER 4XE","year_from":2021,"year_to":2021,"match":"base","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":[]}