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JEEP

08-055-26 REV. A

Manufacturer communications

Publication date
2026-07-03
Received by NHTSA
2026-07-08
NHTSA record numbers
11034891

Manufacturer summary

Original wording in English

Flash: Integrated Dual Charge Module (IDCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs):
• **B22A9-87 - ECU Internal Performance-Missing Message.
• P0D21-00 - Battery Charger "A" Output Voltage Too Low.**
• B22A9-42 - ECU Internal Performance-General Memory Failure.
• B22A9-64 - 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. Customers may also comment on the following:
• The vehicle will not charge. This bulletin involves reprogramming the IDCM with the latest available software.

NHTSA manufacturer communications ↗

Reported code forms

Manufacturer wording

Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.

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MakeModelModel year
JeepGRAND CHEROKEE 4XE2025

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