Jeep Wrangler 2022 — technical service bulletin
Bulletin 0813722 · NHTSA communication 10221507 · issued Jun 29, 2022
Technical service bulletin
communication type
Exterior Lighting
component
2022
model years
1
vehicle entries
Official summary
Flash: Integrated Dual Charging Module (IDCM) Enhancements This bulletin involves reprogramming the IDCM with the latest software available or replacing the IDCM if required. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following Diagnostic Trouble Code (DTC) have been set: B22A9-64 - ECU Internal Performance-Signal Plausibility Failure. Customer may also experience the following:Vehicle will not charge.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.