JEEP
08-261-26
Manufacturer communications
- Publication date
- 2026-07-03
- Received by NHTSA
- 2026-07-08
- NHTSA record numbers
- 11034899
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.**
• B22A9-16 - 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. Customers may also experience the following:
• Vehicle will not charge. **This bulletin involves reprogramming the IDCM with the latest software available.**
• **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. Customers may also experience the following:
• Vehicle will not charge. **This bulletin involves reprogramming the IDCM with the latest software available.**
Reported code forms
Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
Jeep
B22A9-16ECU Internal Performance-Circuit Voltage Below ThresholdJeep
B22A9-17ECU Internal Performance-Circuit Voltage Above ThresholdJeep
B22A9-19ECU Internal Performance - OvercurrentJeep
B22A9-64ECU Internal Performance-Signal Plausibility FailureJeep
B22A9-87ECU Internal Performance-Missing MessageJeep
P0D21-00Battery Charger "A" Output Voltage Too LowCheck vehicle applicability
A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Jeep | WRANGLER 4XE | 2022 |