JEEP

08-259-26

Manufacturer communications

Publication date: 2026-07-03
Received by NHTSA: 2026-07-08
NHTSA record numbers: 11034897

Manufacturer summary

Original wording in English

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
• B22A9-42 - ECU Internal Performance-general Memory 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.
• B22A9-64 - ECU Internal Performance - Signal Plausibility Failure.
• B22A9-92 - ECU Internal Performance - Performance Or Incorrect Operation. Customer may also experience the following:
• 12 volt battery drain.
• Vehicle will not charge. This bulletin involves reprogramming the IDCM with the latest software available.

NHTSA manufacturer communications ↗