May 20, 2023 Service bulletin

Flash: Integrated Dual Charging Module (IDCM) Enhancements Customers may experience a Malfunction...

Jeep technical service bulletin 0811023 for 2023 Jeep Grand Cherokee.

Bulletin number: 0811023
Component: Electrical system
Summary: Flash: Integrated Dual Charging Module (IDCM) Enhancements Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set: ? B22A9-64 - ECU Internal Performance-Signal Plausibility Failure. ? B22A9-16 - ECU Internal Performance-Circuit Voltage Below Threshold. ? B22A9-17 - ECU Internal Performance-Circuit Voltage Above Threshold. ? B22A9-19 - ECU Internal Performance-Overcurrent. Customer may also experience the following: ? Vehicle will not charge. This bulletin involves reprogramming the IDCM with the latest software available.

Owners of these vehicles have filed 184 complaints in the electrical category.

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