2022 Jeep Wrangler MIL and Charging Issue TSB
This manufacturer communication addresses Malfunction Indicator Lamp (MIL) illumination and vehicle charging problems in the 2022 Jeep Wrangler. It details Diagnostic Trouble Codes (DTCs) B22A9-64, B22A9-16, B22A9-17, and B22A9-19, and outlines a software update for the Integrated Dual Charging…
Owners of the 2022 Jeep Wrangler may encounter issues such as the Malfunction Indicator Lamp (MIL) illuminating or the vehicle failing to charge. These symptoms are often linked to specific Diagnostic Trouble Codes (DTCs) related to the Integrated Dual Charging Module (IDCM). This 2022 Jeep Wrangler manufacturer_communication, identified by NHTSA ID 10248012, provides a software update to resolve these concerns.
Symptoms You Might Notice
Owners of affected 2022 Jeep Wrangler vehicles may observe one or both of the following conditions:
- "Malfunction Indicator Lamp (MIL) illumination" on the dashboard.
- "Vehicle will not charge," indicating a problem with the charging system.
Fault Codes / DTCs
Technicians investigating these issues may find one or more of the following Diagnostic Trouble Codes (DTCs) stored in the vehicle's system:
| Code | Description |
|---|---|
| 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 |
These codes specifically point to internal performance issues within the Electronic Control Unit (ECU) of the Integrated Dual Charging Module (IDCM).
Repair Procedure Summary
The resolution for these issues involves updating the software for the Integrated Dual Charging Module (IDCM). This update is crucial for addressing the underlying causes of the "Malfunction Indicator Lamp (MIL) illumination" and charging problems in the 2022 Jeep Wrangler.
It is important to note that this update requires flashing several modules simultaneously for the fix to be effective. The following control modules must all be updated along with the IDCM:
- Integrated Dual Charging Module (IDCM)
- Powertrain Control Module (PCM)
- Transmission Control Module (TCM)
- Battery Pack Control Module (BPCM)
- Hybrid Control Processor (HCP), also known as the Auxiliary Hybrid Control Processor (AHCP) or Power Inverter Module (PIM)
This comprehensive software update, detailed in the 2022 Jeep Wrangler manufacturer_communication referenced by NHTSA ID 10248012, ensures all related systems are synchronized and functioning correctly.
What Owners Should Do
If you own a 2022 Jeep Wrangler and are experiencing a "Malfunction Indicator Lamp (MIL) illumination" or your "Vehicle will not charge," you should contact your authorized Jeep dealership. The necessary software updates will be performed by qualified technicians. This service is typically covered under warranty for new vehicles.
Source: NHTSA ID 10248012
Frequently Asked Questions
- What does the MIL light mean in my 2022 Jeep Wrangler?
- If your 2022 Jeep Wrangler's Malfunction Indicator Lamp (MIL) is illuminated, it signals a potential issue with the vehicle's systems. In this case, it's often related to the Integrated Dual Charging Module (IDCM) and can be accompanied by charging problems.
- Why is my 2022 Jeep Wrangler not charging?
- A 2022 Jeep Wrangler that will not charge may be experiencing an issue with its Integrated Dual Charging Module (IDCM) software. This can trigger specific Diagnostic Trouble Codes (DTCs) like B22A9-64, B22A9-16, B22A9-17, or B22A9-19.
- What are the DTCs associated with the 2022 Jeep Wrangler charging issue?
- The Diagnostic Trouble Codes (DTCs) commonly associated with the 2022 Jeep Wrangler charging issue and MIL illumination are 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), and B22A9-19 (ECU Internal Performance-Overcurrent).
- How is the 2022 Jeep Wrangler MIL and charging issue fixed?
- The fix for the 2022 Jeep Wrangler MIL and charging issue involves a software update for the Integrated Dual Charging Module (IDCM). This update also requires simultaneous flashing of the Powertrain Control Module (PCM), Transmission Control Module (TCM), Battery Pack Control Module (BPCM), and Hybrid Control Processor (HCP)/Power Inverter Module (PIM).
What Jeep Wrangler owners report
Counted from the records in our database across 41 model years.
- 18,838
- Owner complaints
- 104
- Recalls
- 2,758
- Service bulletins
- 572
- Crashes reported
- 552
- Fires reported
- 435
- Injuries reported
The 2022 model year
415 complaints, the 18th most of 41 model years on file. Owners reported 14 crashes, 11 fires and 6 injuries for this year, which also has 16 recalls on file.
Electrical System and Power Train and Exterior Lighting, the system this article covers, accounts for 5,824 of 18,838 complaints (31%), including 225 for 2022.
Complaints by model year
| 2006 | 730 | |
|---|---|---|
| 2007 | 1,750 | |
| 2008 | 1,904 | |
| 2010 | 686 | |
| 2012 | 836 | |
| 2018 | 1,827 | |
| 2019 | 747 | |
| 2021 | 963 | |
| 2022 | 415 | |
| 2024 | 970 |
Most-reported systems
- Steering — 3,929
- Electrical System — 3,613
- Power Train — 2,470
- Engine — 2,406
- Fuel System — 2,015
Latest recalls for the 2022 model year
- 26V363000 — Steering (Jun 2026) — Park outside
- 25V741000 — Electrical System (Oct 2025) — Park outside
- 24V720000 — Electrical System (Sep 2024)
Recent owner reports about electrical system and power train and exterior lighting
The contact owns a 2022 Jeep Wrangler. The contact stated that while operating the vehicle, the instrument panel failed, and the speedometer, tachometer, and turn signals were inoperable.
Read owner complaints →I’ve had an ongoing issue with my car since earlier this year, 2026, and the code says “electric coolant heater” and i have a solid check engine light. they replaced the coolant heater a few months ago and now it’s doing the same thing again.
Complaints are owner reports filed with NHTSA. They are unverified, and counts depend on how many vehicles were sold, so they are not a failure rate.
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